restore pre gradle 9 archive task behaviour for file permissions

* Replace ZBar JNI library implementation with jzbar

* Move ZBar.java to com.sparrowwallet.sparrow.control package

* Move ZBar.java to the com.sparrowwallet.sparrow.io package

* Switch to jzbar from Maven Central and update module/package imports accordingly

* Remove jzbar entry from extraJavaModuleInfo to avoid module patching error

.github/workflows/package.yaml

@@ -12,11 +12,11 @@ jobs:
       matrix:
         os: [windows-2022, ubuntu-22.04, ubuntu-22.04-arm, macos-13, macos-14]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: true
       - name: Set up JDK 22.0.2
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
           java-version: '22.0.2'

build.gradle

@@ -1,8 +1,8 @@
 plugins {
     id 'application'
     id 'org-openjfx-javafxplugin'
-    id 'org.beryx.jlink' version '3.1.1'
-    id 'org.gradlex.extra-java-module-info' version '1.9'
+    id 'org.beryx.jlink' version '3.1.3'
+    id 'org.gradlex.extra-java-module-info' version '1.13'
     id 'io.matthewnelson.kmp.tor.resource-filterjar' version '408.16.3'
 }
 
@@ -19,17 +19,16 @@ if(System.getProperty("os.arch") == "aarch64") {
 }
 def headless = "true".equals(System.getProperty("java.awt.headless"))
 
-group 'com.sparrowwallet'
-version '2.2.1'
+group = 'com.sparrowwallet'
+version = '2.3.0'
 
 repositories {
     mavenCentral()
-    maven { url 'https://code.sparrowwallet.com/api/packages/sparrowwallet/maven' }
+    maven { url = uri('https://code.sparrowwallet.com/api/packages/sparrowwallet/maven') }
 }
 
-tasks.withType(AbstractArchiveTask) {
-    preserveFileTimestamps = false
-    reproducibleFileOrder = true
+tasks.withType(AbstractArchiveTask).configureEach {
+    useFileSystemPermissions()
 }
 
 javafx {
@@ -45,20 +44,20 @@ dependencies {
     //Any changes to the dependencies must be reflected in the module definitions below!
     implementation(project(':drongo'))
     implementation(project(':lark'))
-    implementation('com.google.guava:guava:33.0.0-jre')
+    implementation('com.google.guava:guava:33.5.0-jre')
     implementation('com.google.code.gson:gson:2.9.1')
     implementation('com.h2database:h2:2.1.214')
     implementation('com.zaxxer:HikariCP:4.0.3') {
         exclude group: 'org.slf4j'
     }
-    implementation('org.jdbi:jdbi3-core:3.20.0') {
+    implementation('org.jdbi:jdbi3-core:3.49.5') {
         exclude group: 'org.slf4j'
     }
-    implementation('org.jdbi:jdbi3-sqlobject:3.20.0') {
+    implementation('org.jdbi:jdbi3-sqlobject:3.49.5') {
         exclude group: 'org.slf4j'
     }
     implementation('org.flywaydb:flyway-core:9.22.3')
-    implementation('org.fxmisc.richtext:richtextfx:0.10.4')
+    implementation('org.fxmisc.richtext:richtextfx:0.11.6')
     implementation('no.tornado:tornadofx-controls:1.0.4')
     implementation('com.google.zxing:javase:3.4.0') {
         exclude group: 'com.beust', module: 'jcommander'
@@ -74,7 +73,7 @@ dependencies {
     implementation('com.fasterxml.jackson.core:jackson-databind:2.17.2')
     implementation('com.sparrowwallet:hummingbird:1.7.4')
     implementation('co.nstant.in:cbor:0.9')
-    implementation('org.openpnp:openpnp-capture-java:0.0.28-5')
+    implementation('org.openpnp:openpnp-capture-java:0.0.28-6')
     implementation("io.matthewnelson.kmp-tor:runtime:2.2.1")
     implementation("io.matthewnelson.kmp-tor:resource-exec-tor-gpl:408.16.3")
     implementation('org.jetbrains.kotlinx:kotlinx-coroutines-javafx:1.10.1') {
@@ -100,7 +99,7 @@ dependencies {
     implementation('com.sparrowwallet:tern:1.0.6')
     implementation('io.reactivex.rxjava2:rxjava:2.2.15')
     implementation('io.reactivex.rxjava2:rxjavafx:2.2.2')
-    implementation('org.apache.commons:commons-lang3:3.7')
+    implementation('org.apache.commons:commons-lang3:3.19.0')
     implementation('org.apache.commons:commons-compress:1.27.1')
     implementation('net.sourceforge.streamsupport:streamsupport:1.7.0')
     implementation('com.github.librepdf:openpdf:1.3.30')
@@ -109,6 +108,7 @@ dependencies {
     implementation('com.github.hervegirod:fxsvgimage:1.1')
     implementation('com.sparrowwallet:toucan:0.9.0')
     implementation('com.jcraft:jzlib:1.1.3')
+    implementation('io.github.doblon8:jzbar:0.0.1')
     testImplementation('org.junit.jupiter:junit-jupiter-api:5.10.0')
     testRuntimeOnly('org.junit.jupiter:junit-jupiter-engine:5.10.0')
     testRuntimeOnly('org.junit.platform:junit-platform-launcher')
@@ -141,6 +141,12 @@ application {
     mainClass = 'com.sparrowwallet.sparrow.SparrowWallet'
 
     applicationDefaultJvmArgs = ["-XX:+HeapDumpOnOutOfMemoryError",
+                                 "--enable-native-access=com.sparrowwallet.drongo",
+                                 "--enable-native-access=com.sun.jna",
+                                 "--enable-native-access=javafx.graphics",
+                                 "--enable-native-access=com.fazecast.jSerialComm",
+                                 "--enable-native-access=org.usb4java",
+                                 "--enable-native-access=io.github.doblon8.jzbar",
                                  "--add-opens=javafx.graphics/com.sun.javafx.css=org.controlsfx.controls",
                                  "--add-opens=javafx.graphics/javafx.scene=org.controlsfx.controls",
                                  "--add-opens=javafx.controls/com.sun.javafx.scene.control.behavior=org.controlsfx.controls",
@@ -189,7 +195,14 @@ jlink {
     options = ['--strip-native-commands', '--strip-java-debug-attributes', '--compress', 'zip-6', '--no-header-files', '--no-man-pages', '--ignore-signing-information', '--exclude-files', '**.png', '--exclude-resources', 'glob:/com.sparrowwallet.merged.module/META-INF/*']
     launcher {
         name = 'sparrow'
-        jvmArgs = ["--add-opens=javafx.graphics/com.sun.javafx.css=org.controlsfx.controls",
+        jvmArgs = ["--enable-native-access=com.sparrowwallet.drongo",
+                   "--enable-native-access=com.sun.jna",
+                   "--enable-native-access=javafx.graphics",
+                   "--enable-native-access=com.sparrowwallet.merged.module",
+                   "--enable-native-access=com.fazecast.jSerialComm",
+                   "--enable-native-access=org.usb4java",
+                   "--enable-native-access=io.github.doblon8.jzbar",
+                   "--add-opens=javafx.graphics/com.sun.javafx.css=org.controlsfx.controls",
                    "--add-opens=javafx.graphics/javafx.scene=org.controlsfx.controls",
                    "--add-opens=javafx.controls/com.sun.javafx.scene.control.behavior=org.controlsfx.controls",
                    "--add-opens=javafx.controls/com.sun.javafx.scene.control.inputmap=org.controlsfx.controls",
@@ -221,6 +234,7 @@ jlink {
                    "--add-reads=com.sparrowwallet.merged.module=org.bouncycastle.pg",
                    "--add-reads=com.sparrowwallet.merged.module=org.bouncycastle.provider",
                    "--add-reads=com.sparrowwallet.merged.module=kotlin.stdlib",
+                   "--add-reads=com.sparrowwallet.merged.module=org.reactfx.reactfx",
                    "--add-reads=kotlin.stdlib=kotlinx.coroutines.core",
                    "--add-reads=org.flywaydb.core=java.desktop"]
 
@@ -392,21 +406,6 @@ extraJavaModuleInfo {
     module('com.google.guava:listenablefuture|empty-to-avoid-conflict-with-guava', 'com.google.guava.listenablefuture')
     module('com.google.code.findbugs:jsr305', 'com.google.code.findbugs.jsr305')
     module('j2objc-annotations-2.8.jar', 'com.google.j2objc.j2objc.annotations', '2.8')
-    module('org.jdbi:jdbi3-core', 'org.jdbi.v3.core') {
-        exports('org.jdbi.v3.core')
-        exports('org.jdbi.v3.core.mapper')
-        exports('org.jdbi.v3.core.statement')
-        exports('org.jdbi.v3.core.result')
-        exports('org.jdbi.v3.core.h2')
-        exports('org.jdbi.v3.core.spi')
-        requires('io.leangen.geantyref')
-        requires('java.sql')
-        requires('org.slf4j')
-        requires('com.github.benmanes.caffeine')
-    }
-    module('io.leangen.geantyref:geantyref', 'io.leangen.geantyref') {
-        exports('io.leangen.geantyref')
-    }
     module('org.fxmisc.richtext:richtextfx', 'org.fxmisc.richtext') {
         exports('org.fxmisc.richtext')
         exports('org.fxmisc.richtext.event')
@@ -416,10 +415,10 @@ extraJavaModuleInfo {
         requires('javafx.graphics')
         requires('org.fxmisc.flowless')
         requires('org.reactfx.reactfx')
-        requires('org.fxmisc.undo.undofx')
+        requires('org.fxmisc.undo')
         requires('org.fxmisc.wellbehaved')
     }
-    module('org.fxmisc.undo:undofx', 'org.fxmisc.undo.undofx') {
+    module('org.fxmisc.undo:undofx', 'org.fxmisc.undo') {
         requires('javafx.base')
         requires('javafx.controls')
         requires('javafx.graphics')

buildSrc/build.gradle

@@ -4,13 +4,12 @@ plugins {
 
 dependencies {
     implementation 'com.google.gradle:osdetector-gradle-plugin:1.7.3'
-    implementation 'org.javamodularity:moduleplugin:1.8.14'
 }
 
 repositories {
     mavenCentral()
     maven {
-        url "https://plugins.gradle.org/m2/"
+        url = uri("https://plugins.gradle.org/m2/")
     }
 }
 

buildSrc/src/main/java/org/openjfx/gradle/JavaFXPlugin.java

@@ -32,7 +32,6 @@ package org.openjfx.gradle;
 import com.google.gradle.osdetector.OsDetectorPlugin;
 import org.gradle.api.Plugin;
 import org.gradle.api.Project;
-import org.javamodularity.moduleplugin.ModuleSystemPlugin;
 import org.openjfx.gradle.tasks.ExecTask;
 
 public class JavaFXPlugin implements Plugin<Project> {
@@ -40,10 +39,9 @@ public class JavaFXPlugin implements Plugin<Project> {
     @Override
     public void apply(Project project) {
         project.getPlugins().apply(OsDetectorPlugin.class);
-        project.getPlugins().apply(ModuleSystemPlugin.class);
 
         project.getExtensions().create("javafx", JavaFXOptions.class, project);
 
-        project.getTasks().create("configJavafxRun", ExecTask.class, project);
+        project.getTasks().register("configJavafxRun", ExecTask.class, project);
     }
 }

buildSrc/src/main/java/org/openjfx/gradle/tasks/ExecTask.java

@@ -33,27 +33,19 @@ import org.gradle.api.DefaultTask;
 import org.gradle.api.GradleException;
 import org.gradle.api.Project;
 import org.gradle.api.file.FileCollection;
-import org.gradle.api.logging.Logger;
-import org.gradle.api.logging.Logging;
 import org.gradle.api.plugins.ApplicationPlugin;
 import org.gradle.api.tasks.JavaExec;
 import org.gradle.api.tasks.TaskAction;
-import org.javamodularity.moduleplugin.extensions.RunModuleOptions;
 import org.openjfx.gradle.JavaFXModule;
 import org.openjfx.gradle.JavaFXOptions;
 import org.openjfx.gradle.JavaFXPlatform;
 
 import javax.inject.Inject;
 import java.io.File;
-import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.List;
 import java.util.TreeSet;
 
 public class ExecTask extends DefaultTask {
-
-    private static final Logger LOGGER = Logging.getLogger(ExecTask.class);
-
     private final Project project;
     private JavaExec execTask;
 
@@ -78,37 +70,11 @@ public class ExecTask extends DefaultTask {
 
             var definedJavaFXModuleNames = new TreeSet<>(javaFXOptions.getModules());
             if (!definedJavaFXModuleNames.isEmpty()) {
-                RunModuleOptions moduleOptions = execTask.getExtensions().findByType(RunModuleOptions.class);
-
                 final FileCollection classpathWithoutJavaFXJars = execTask.getClasspath().filter(
                         jar -> Arrays.stream(JavaFXModule.values()).noneMatch(javaFXModule -> jar.getName().contains(javaFXModule.getArtifactName()))
                 );
                 final FileCollection javaFXPlatformJars = execTask.getClasspath().filter(jar -> isJavaFXJar(jar, javaFXOptions.getPlatform()));
-
-                if (moduleOptions != null) {
-                    LOGGER.info("Modular JavaFX application found");
-                    // Remove empty JavaFX jars from classpath
-                    execTask.setClasspath(classpathWithoutJavaFXJars.plus(javaFXPlatformJars));
-                    definedJavaFXModuleNames.forEach(javaFXModule -> moduleOptions.getAddModules().add(javaFXModule));
-                } else {
-                    LOGGER.info("Non-modular JavaFX application found");
-                    // Remove all JavaFX jars from classpath
-                    execTask.setClasspath(classpathWithoutJavaFXJars);
-
-                    var javaFXModuleJvmArgs = List.of("--module-path", javaFXPlatformJars.getAsPath());
-
-                    var jvmArgs = new ArrayList<String>();
-                    jvmArgs.add("--add-modules");
-                    jvmArgs.add(String.join(",", definedJavaFXModuleNames));
-
-                    List<String> execJvmArgs = execTask.getJvmArgs();
-                    if (execJvmArgs != null) {
-                        jvmArgs.addAll(execJvmArgs);
-                    }
-                    jvmArgs.addAll(javaFXModuleJvmArgs);
-
-                    execTask.setJvmArgs(jvmArgs);
-                }
+                execTask.setClasspath(classpathWithoutJavaFXJars.plus(javaFXPlatformJars));
             }
         } else {
             throw new GradleException("Run task not found. Please, make sure the Application plugin is applied");

docs/reproducible.md

@@ -83,7 +83,7 @@ sudo apt install -y rpm fakeroot binutils
 First, assign a temporary variable in your shell for the specific release you want to build. For the current one specify:
 
 ```shell
-GIT_TAG="2.2.0"
+GIT_TAG="2.2.3"
 ```
 
 The project can then be initially cloned as follows:

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

gradlew

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# Copyright © 2015-2021 the original authors.
+# Copyright © 2015 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
@@ -55,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -84,7 +86,7 @@ done
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
 # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -112,7 +114,6 @@ case "$( uname )" in                #(
   NONSTOP* )        nonstop=true ;;
 esac
 
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
 
 # Determine the Java command to use to start the JVM.
@@ -170,7 +171,6 @@ fi
 # For Cygwin or MSYS, switch paths to Windows format before running java
 if "$cygwin" || "$msys" ; then
     APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
-    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
 
     JAVACMD=$( cygpath --unix "$JAVACMD" )
 
@@ -203,15 +203,14 @@ fi
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Collect all arguments for the java command:
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
 #     and any embedded shellness will be escaped.
 #   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
 #     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
-        -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
         "$@"
 
 # Stop when "xargs" is not available.

gradlew.bat

@@ -13,6 +13,8 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
@@ -43,11 +45,11 @@ set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
 if %ERRORLEVEL% equ 0 goto execute
 
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -57,22 +59,21 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
 :execute
 @rem Setup the command line
 
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
 
 :end
 @rem End local scope for the variables with windows NT shell

src/main/deploy/package/osx/Info.plist

@@ -21,7 +21,7 @@
   <key>CFBundlePackageType</key>
   <string>APPL</string>
   <key>CFBundleShortVersionString</key>
-  <string>2.2.1</string>
+  <string>2.3.0</string>
   <key>CFBundleSignature</key>
   <string>????</string>
   <!-- See https://developer.apple.com/app-store/categories/ for list of AppStore categories -->
@@ -33,6 +33,8 @@
   <string>Copyright (C) 2021</string>
   <key>NSHighResolutionCapable</key>
   <string>true</string>
+  <key>NSCameraUseContinuityCameraDeviceType</key>
+  <true/>
   <key>NSCameraUsageDescription</key>
   <string>Sparrow requires access to the camera in order to scan QR codes</string>
   <key>NSLocalNetworkUsageDescription</key>

src/main/java/com/sparrowwallet/sparrow/AppController.java

@@ -3,13 +3,14 @@ package com.sparrowwallet.sparrow;
 import com.beust.jcommander.JCommander;
 import com.google.common.eventbus.Subscribe;
 import com.sparrowwallet.drongo.*;
+import com.sparrowwallet.drongo.address.Address;
 import com.sparrowwallet.drongo.crypto.*;
+import com.sparrowwallet.drongo.dns.DnsPayment;
+import com.sparrowwallet.drongo.dns.DnsPaymentCache;
 import com.sparrowwallet.drongo.policy.PolicyType;
 import com.sparrowwallet.drongo.protocol.*;
-import com.sparrowwallet.drongo.psbt.PSBT;
-import com.sparrowwallet.drongo.psbt.PSBTInput;
-import com.sparrowwallet.drongo.psbt.PSBTParseException;
-import com.sparrowwallet.drongo.psbt.PSBTSignatureException;
+import com.sparrowwallet.drongo.psbt.*;
+import com.sparrowwallet.drongo.silentpayments.SilentPaymentAddress;
 import com.sparrowwallet.drongo.wallet.*;
 import com.sparrowwallet.hummingbird.UR;
 import com.sparrowwallet.hummingbird.registry.CryptoPSBT;
@@ -462,7 +463,7 @@ public class AppController implements Initializable {
                     settings, new SeparatorMenuItem(),
                     tk.createHideMenuItem(SparrowWallet.APP_NAME), tk.createHideOthersMenuItem(), tk.createUnhideAllMenuItem(), new SeparatorMenuItem(),
                     tk.createQuitMenuItem(SparrowWallet.APP_NAME));
-            tk.setApplicationMenu(defaultApplicationMenu);
+            Platform.runLater(() -> tk.setApplicationMenu(defaultApplicationMenu));
 
             fileMenu.getItems().removeIf(item -> item.getStyleClass().contains("osxHide"));
             toolsMenu.getItems().removeIf(item -> item.getStyleClass().contains("osxHide"));
@@ -822,10 +823,10 @@ public class AppController implements Initializable {
                 try(FileOutputStream outputStream = new FileOutputStream(file)) {
                     if(asText) {
                         PrintWriter writer = new PrintWriter(new OutputStreamWriter(outputStream, StandardCharsets.UTF_8));
-                        writer.print(transactionTabData.getPsbt().toBase64String(includeXpubs));
+                        writer.print(transactionTabData.getPsbt().getForExport().toBase64String(includeXpubs));
                         writer.flush();
                     } else {
-                        outputStream.write(transactionTabData.getPsbt().serialize(includeXpubs, true));
+                        outputStream.write(transactionTabData.getPsbt().getForExport().serialize(includeXpubs, true));
                     }
                 } catch(IOException e) {
                     log.error("Error saving PSBT", e);
@@ -848,7 +849,7 @@ public class AppController implements Initializable {
         TabData tabData = (TabData)selectedTab.getUserData();
         if(tabData.getType() == TabData.TabType.TRANSACTION) {
             TransactionTabData transactionTabData = (TransactionTabData)tabData;
-            String data = asBase64 ? transactionTabData.getPsbt().toBase64String() : transactionTabData.getPsbt().toString();
+            String data = asBase64 ? transactionTabData.getPsbt().getForExport().toBase64String() : transactionTabData.getPsbt().getForExport().toString();
 
             ClipboardContent content = new ClipboardContent();
             content.putString(data);
@@ -862,7 +863,7 @@ public class AppController implements Initializable {
         if(tabData.getType() == TabData.TabType.TRANSACTION) {
             TransactionTabData transactionTabData = (TransactionTabData)tabData;
 
-            byte[] psbtBytes = transactionTabData.getPsbt().serialize();
+            byte[] psbtBytes = transactionTabData.getPsbt().getForExport().serialize();
             CryptoPSBT cryptoPSBT = new CryptoPSBT(psbtBytes);
             BBQR bbqr = new BBQR(BBQRType.PSBT, psbtBytes);
             QRDisplayDialog qrDisplayDialog = new QRDisplayDialog(cryptoPSBT.toUR(), bbqr, false, true, false);
@@ -1034,6 +1035,10 @@ public class AppController implements Initializable {
             cmd.add(System.getProperty(JPACKAGE_APP_PATH));
             cmd.addAll(args.toParams());
             final ProcessBuilder builder = new ProcessBuilder(cmd);
+            if(OsType.getCurrent() == OsType.UNIX) {
+                Map<String, String> env = builder.environment();
+                env.remove("LD_LIBRARY_PATH");
+            }
             builder.start();
             quit(event);
         } catch(Exception e) {
@@ -1422,6 +1427,10 @@ public class AppController implements Initializable {
     }
 
     public void sendToMany(ActionEvent event) {
+        sendToMany(Collections.emptyList());
+    }
+
+    private void sendToMany(List<Payment> initialPayments) {
         if(sendToManyDialog != null) {
             Stage stage = (Stage)sendToManyDialog.getDialogPane().getScene().getWindow();
             stage.setAlwaysOnTop(true);
@@ -1437,7 +1446,7 @@ public class AppController implements Initializable {
                 bitcoinUnit = wallet.getAutoUnit();
             }
 
-            sendToManyDialog = new SendToManyDialog(bitcoinUnit);
+            sendToManyDialog = new SendToManyDialog(bitcoinUnit, initialPayments);
             sendToManyDialog.initModality(Modality.NONE);
             Optional<List<Payment>> optPayments = sendToManyDialog.showAndWait();
             sendToManyDialog = null;
@@ -1889,6 +1898,11 @@ public class AppController implements Initializable {
     }
 
     private void addTransactionTab(String name, File file, PSBT psbt) {
+        //Convert to PSBTv0 first
+        if(psbt.getVersion() != null && psbt.getVersion() >= 2) {
+            psbt.convertVersion(0);
+        }
+
         //Add any missing previous outputs if available in open wallets
         for(PSBTInput psbtInput : psbt.getPsbtInputs()) {
             if(psbtInput.getUtxo() == null) {
@@ -1908,6 +1922,39 @@ public class AppController implements Initializable {
             }
         }
 
+        //Add DNS payment information if not already cached
+        for(PSBTOutput psbtOutput : psbt.getPsbtOutputs()) {
+            if(psbtOutput.getDnssecProof() != null && !psbtOutput.getDnssecProof().isEmpty()) {
+                Address address = psbtOutput.getScript() != null ? psbtOutput.getScript().getToAddress() : null;
+                if(address != null && DnsPaymentCache.getDnsPayment(address) == null) {
+                    try {
+                        Optional<DnsPayment> optDnsPayment = psbtOutput.getDnsPayment();
+                        if(optDnsPayment.isPresent() && address.equals(optDnsPayment.get().bitcoinURI().getAddress())) {
+                            DnsPaymentCache.putDnsPayment(address, optDnsPayment.get());
+                        }
+                    } catch(Exception e) {
+                        log.debug("Error resolving DNS payment", e);
+                    }
+                }
+
+                SilentPaymentAddress silentPaymentAddress = psbtOutput.getSilentPaymentAddress();
+                if(address != null && silentPaymentAddress == null) {
+                    silentPaymentAddress = AppServices.get().getOpenWallets().keySet().stream()
+                            .map(wallet -> wallet.getSilentPaymentAddress(address)).filter(Objects::nonNull).findFirst().orElse(null);
+                }
+                if(silentPaymentAddress != null && DnsPaymentCache.getDnsPayment(silentPaymentAddress) == null) {
+                    try {
+                        Optional<DnsPayment> optDnsPayment = psbtOutput.getDnsPayment();
+                        if(optDnsPayment.isPresent() && silentPaymentAddress.equals(optDnsPayment.get().bitcoinURI().getSilentPaymentAddress())) {
+                            DnsPaymentCache.putDnsPayment(silentPaymentAddress, optDnsPayment.get());
+                        }
+                    } catch(Exception e) {
+                        log.debug("Error resolving DNS payment", e);
+                    }
+                }
+            }
+        }
+
         Window psbtWalletWindow = AppServices.get().getWindowForPSBT(psbt);
         if(psbtWalletWindow != null && !tabs.getScene().getWindow().equals(psbtWalletWindow)) {
             EventManager.get().post(new ViewPSBTEvent(psbtWalletWindow, name, file, psbt));
@@ -3107,6 +3154,11 @@ public class AppController implements Initializable {
         }
     }
 
+    @Subscribe
+    public void requestSendToMany(RequestSendToManyEvent event) {
+        sendToMany(event.getPayments());
+    }
+
     @Subscribe
     public void functionAction(FunctionActionEvent event) {
         selectTab(event.getWallet());

src/main/java/com/sparrowwallet/sparrow/AppServices.java

@@ -91,8 +91,7 @@ public class AppServices {
     private static final String TOR_DEFAULT_PROXY_CIRCUIT_ID = "default";
 
     public static final List<Integer> TARGET_BLOCKS_RANGE = List.of(1, 2, 3, 4, 5, 10, 25, 50);
-    public static final List<Long> LONG_FEE_RATES_RANGE = List.of(1L, 2L, 4L, 8L, 16L, 32L, 64L, 128L, 256L, 512L, 1024L, 2048L, 4096L, 8192L);
-    public static final List<Long> FEE_RATES_RANGE = LONG_FEE_RATES_RANGE.subList(0, LONG_FEE_RATES_RANGE.size() - 3);
+    private static final List<Double> LONG_FEE_RATES_RANGE = List.of(1d, 2d, 4d, 8d, 16d, 32d, 64d, 128d, 256d, 512d, 1024d, 2048d, 4096d, 8192d);
     public static final double FALLBACK_FEE_RATE = 20000d / 1000;
     public static final double TESTNET_FALLBACK_FEE_RATE = 1000d / 1000;
 
@@ -136,10 +135,14 @@ public class AppServices {
 
     private static Map<Integer, Double> targetBlockFeeRates;
 
+    private static Double nextBlockMedianFeeRate;
+
     private static final TreeMap<Date, Set<MempoolRateSize>> mempoolHistogram = new TreeMap<>();
 
     private static Double minimumRelayFeeRate;
 
+    private static Double serverMinimumRelayFeeRate;
+
     private static CurrencyRate fiatCurrencyExchangeRate;
 
     private static List<Device> devices;
@@ -209,6 +212,7 @@ public class AppServices {
         preventSleepService = createPreventSleepService();
 
         onlineProperty.addListener(onlineServicesListener);
+        minimumRelayFeeRate = getConfiguredMinimumRelayFeeRate(config);
 
         if(config.getMode() == Mode.ONLINE) {
             if(config.requiresInternalTor()) {
@@ -748,6 +752,30 @@ public class AppServices {
         return Math.max(minRate, Transaction.DUST_RELAY_TX_FEE);
     }
 
+    public static List<Double> getLongFeeRatesRange() {
+        if(minimumRelayFeeRate == null || minimumRelayFeeRate >= Transaction.DEFAULT_MIN_RELAY_FEE) {
+            return LONG_FEE_RATES_RANGE;
+        } else {
+            List<Double> longFeeRatesRange = new ArrayList<>();
+            longFeeRatesRange.add(minimumRelayFeeRate);
+            longFeeRatesRange.addAll(LONG_FEE_RATES_RANGE);
+            return longFeeRatesRange;
+        }
+    }
+
+    public static List<Double> getFeeRatesRange() {
+        if(minimumRelayFeeRate == null || minimumRelayFeeRate >= Transaction.DEFAULT_MIN_RELAY_FEE) {
+            return LONG_FEE_RATES_RANGE.subList(0, LONG_FEE_RATES_RANGE.size() - 3);
+        } else {
+            List<Double> longFeeRatesRange = getLongFeeRatesRange();
+            return longFeeRatesRange.subList(0, longFeeRatesRange.size() - 4);
+        }
+    }
+
+    public static Double getNextBlockMedianFeeRate() {
+        return nextBlockMedianFeeRate == null ? getDefaultFeeRate() : nextBlockMedianFeeRate;
+    }
+
     public static double getFallbackFeeRate() {
         return Network.get() == Network.MAINNET ? FALLBACK_FEE_RATE : TESTNET_FALLBACK_FEE_RATE;
     }
@@ -782,10 +810,18 @@ public class AppServices {
         });
     }
 
+    public static Double getConfiguredMinimumRelayFeeRate(Config config) {
+        return config.getMinRelayFeeRate() >= 0d && config.getMinRelayFeeRate() < Transaction.DEFAULT_MIN_RELAY_FEE ? config.getMinRelayFeeRate() : null;
+    }
+
     public static Double getMinimumRelayFeeRate() {
         return minimumRelayFeeRate == null ? Transaction.DEFAULT_MIN_RELAY_FEE : minimumRelayFeeRate;
     }
 
+    public static Double getServerMinimumRelayFeeRate() {
+        return serverMinimumRelayFeeRate;
+    }
+
     public static CurrencyRate getFiatCurrencyExchangeRate() {
         return fiatCurrencyExchangeRate;
     }
@@ -799,8 +835,8 @@ public class AppServices {
     }
 
     public static void addPayjoinURI(BitcoinURI bitcoinURI) {
-        if(bitcoinURI.getPayjoinUrl() == null) {
-            throw new IllegalArgumentException("Not a payjoin URI");
+        if(bitcoinURI.getPayjoinUrl() == null || bitcoinURI.getAddress() == null) {
+            throw new IllegalArgumentException("Not a valid payjoin URI");
         }
         payjoinURIs.put(bitcoinURI.getAddress(), bitcoinURI);
     }
@@ -1197,7 +1233,7 @@ public class AppServices {
     }
 
     public static Font getMonospaceFont() {
-        return Font.font("Roboto Mono", 13);
+        return Font.font("Fragment Mono Regular", 13);
     }
 
     public static boolean isOnWayland() {
@@ -1213,7 +1249,10 @@ public class AppServices {
     public void newConnection(ConnectionEvent event) {
         currentBlockHeight = event.getBlockHeight();
         System.setProperty(Network.BLOCK_HEIGHT_PROPERTY, Integer.toString(currentBlockHeight));
-        minimumRelayFeeRate = Math.max(event.getMinimumRelayFeeRate(), Transaction.DEFAULT_MIN_RELAY_FEE);
+        if(getConfiguredMinimumRelayFeeRate(Config.get()) == null) {
+            minimumRelayFeeRate = event.getMinimumRelayFeeRate() == null ? Transaction.DEFAULT_MIN_RELAY_FEE : event.getMinimumRelayFeeRate();
+        }
+        serverMinimumRelayFeeRate = event.getMinimumRelayFeeRate();
         latestBlockHeader = event.getBlockHeader();
         Config.get().addRecentServer();
 
@@ -1249,11 +1288,13 @@ public class AppServices {
         if(AppServices.currentBlockHeight != null) {
             blockSummaries.keySet().removeIf(height -> AppServices.currentBlockHeight - height > 5);
         }
+        nextBlockMedianFeeRate = event.getNextBlockMedianFeeRate();
     }
 
     @Subscribe
     public void feesUpdated(FeeRatesUpdatedEvent event) {
         targetBlockFeeRates = event.getTargetBlockFeeRates();
+        nextBlockMedianFeeRate = event.getNextBlockMedianFeeRate();
     }
 
     @Subscribe

src/main/java/com/sparrowwallet/sparrow/SparrowDesktop.java

@@ -113,8 +113,8 @@ public class SparrowDesktop extends Application {
     private void initializeFonts() {
         GlyphFontRegistry.register(new FontAwesome5());
         GlyphFontRegistry.register(new FontAwesome5Brands());
-        Font.loadFont(AppServices.class.getResourceAsStream("/font/RobotoMono-Regular.ttf"), 13);
-        Font.loadFont(AppServices.class.getResourceAsStream("/font/RobotoMono-Italic.ttf"), 11);
+        Font.loadFont(AppServices.class.getResourceAsStream("/font/FragmentMono-Regular.ttf"), 13);
+        Font.loadFont(AppServices.class.getResourceAsStream("/font/FragmentMono-Italic.ttf"), 11);
         if(OsType.getCurrent() == OsType.MACOS) {
             Font.loadFont(AppServices.class.getResourceAsStream("/font/LiberationSans-Regular.ttf"), 13);
         }

src/main/java/com/sparrowwallet/sparrow/SparrowWallet.java

@@ -18,7 +18,7 @@ import java.util.*;
 public class SparrowWallet {
     public static final String APP_ID = "sparrow";
     public static final String APP_NAME = "Sparrow";
-    public static final String APP_VERSION = "2.2.1";
+    public static final String APP_VERSION = "2.3.0";
     public static final String APP_VERSION_SUFFIX = "";
     public static final String APP_HOME_PROPERTY = "sparrow.home";
     public static final String NETWORK_ENV_PROPERTY = "SPARROW_NETWORK";

src/main/java/com/sparrowwallet/sparrow/control/BlockCube.java

@@ -52,7 +52,10 @@ public class BlockCube extends Group {
     public BlockCube(Integer weight, Double medianFee, Integer height, Integer txCount, Long timestamp, boolean confirmed) {
         getStyleClass().addAll("block-" + Network.getCanonical().getName(), "block-cube");
         this.confirmedProperty.set(confirmed);
-        this.feeRatesSource.set(Config.get().getFeeRatesSource());
+
+        FeeRatesSource feeRatesSource = Config.get().getFeeRatesSource();
+        feeRatesSource = (feeRatesSource == null ? FeeRatesSource.MEMPOOL_SPACE : feeRatesSource);
+        this.feeRatesSource.set(feeRatesSource);
 
         this.weightProperty.addListener((_, _, _) -> {
             if(front != null) {
@@ -198,6 +201,8 @@ public class BlockCube extends Group {
                 } else {
                     feeRateIcon.getChildren().clear();
                 }
+            } else {
+                feeRateIcon.getChildren().clear();
             }
         }
     }

src/main/java/com/sparrowwallet/sparrow/control/ComboBoxTextField.java

@@ -6,10 +6,16 @@ import javafx.beans.property.SimpleObjectProperty;
 import javafx.scene.Cursor;
 import javafx.scene.Node;
 import javafx.scene.control.ComboBox;
+import javafx.scene.control.ContextMenu;
+import javafx.scene.control.MenuItem;
+import javafx.scene.control.SeparatorMenuItem;
+import javafx.scene.input.Clipboard;
 import javafx.scene.layout.Region;
 import javafx.scene.layout.StackPane;
 import org.controlsfx.control.textfield.CustomTextField;
 
+import java.util.List;
+
 public class ComboBoxTextField extends CustomTextField {
     private final ObjectProperty<ComboBox<?>> comboProperty = new SimpleObjectProperty<>();
 
@@ -68,4 +74,53 @@ public class ComboBoxTextField extends CustomTextField {
     public void setComboProperty(ComboBox<?> comboProperty) {
         this.comboProperty.set(comboProperty);
     }
+
+    public ContextMenu getCustomContextMenu(List<MenuItem> customItems) {
+        return new CustomContextMenu(customItems);
+    }
+
+    public class CustomContextMenu extends ContextMenu {
+        public CustomContextMenu(List<MenuItem> customItems) {
+            super();
+            setFont(null);
+
+            MenuItem undo = new MenuItem("Undo");
+            undo.setOnAction(_ -> undo());
+
+            MenuItem redo = new MenuItem("Redo");
+            redo.setOnAction(_ -> redo());
+
+            MenuItem cut = new MenuItem("Cut");
+            cut.setOnAction(_ -> cut());
+
+            MenuItem copy = new MenuItem("Copy");
+            copy.setOnAction(_ -> copy());
+
+            MenuItem paste = new MenuItem("Paste");
+            paste.setOnAction(_ -> paste());
+
+            MenuItem delete = new MenuItem("Delete");
+            delete.setOnAction(_ -> deleteText(getSelection()));
+
+            MenuItem selectAll = new MenuItem("Select All");
+            selectAll.setOnAction(_ -> selectAll());
+
+            getItems().addAll(undo, redo, new SeparatorMenuItem(), cut, copy, paste, delete, new SeparatorMenuItem(), selectAll);
+            getItems().addAll(customItems);
+
+            setOnShowing(_ -> {
+                boolean hasSelection = getSelection().getLength() > 0;
+                boolean hasText = getText() != null && !getText().isEmpty();
+                boolean clipboardHasContent = Clipboard.getSystemClipboard().hasString();
+
+                undo.setDisable(!isUndoable());
+                redo.setDisable(!isRedoable());
+                cut.setDisable(!isEditable() || !hasSelection);
+                copy.setDisable(!hasSelection);
+                paste.setDisable(!isEditable() || !clipboardHasContent);
+                delete.setDisable(!hasSelection);
+                selectAll.setDisable(!hasText);
+            });
+        }
+    }
 }

src/main/java/com/sparrowwallet/sparrow/control/ConfirmationAlert.java

@@ -0,0 +1,39 @@
+package com.sparrowwallet.sparrow.control;
+
+import com.sparrowwallet.sparrow.AppServices;
+import javafx.geometry.Insets;
+import javafx.scene.control.Alert;
+import javafx.scene.control.ButtonType;
+import javafx.scene.control.CheckBox;
+import javafx.scene.control.Label;
+import javafx.scene.layout.VBox;
+
+import static com.sparrowwallet.sparrow.AppServices.getActiveWindow;
+import static com.sparrowwallet.sparrow.AppServices.setStageIcon;
+
+public class ConfirmationAlert extends Alert {
+    private final CheckBox dontAskAgain;
+
+    public ConfirmationAlert(String title, String contentText, ButtonType... buttons) {
+        super(AlertType.CONFIRMATION, contentText, buttons);
+
+        initOwner(getActiveWindow());
+        setStageIcon(getDialogPane().getScene().getWindow());
+        getDialogPane().getScene().getStylesheets().add(AppServices.class.getResource("general.css").toExternalForm());
+        setTitle(title);
+        setHeaderText(title);
+
+        VBox contentBox = new VBox(20);
+        contentBox.setPadding(new Insets(10, 20, 10, 20));
+        Label contentLabel = new Label(contentText);
+        contentLabel.setWrapText(true);
+        dontAskAgain = new CheckBox("Don't ask again");
+        contentBox.getChildren().addAll(contentLabel, dontAskAgain);
+
+        getDialogPane().setContent(contentBox);
+    }
+
+    public boolean isDontAskAgain() {
+        return dontAskAgain.isSelected();
+    }
+}

src/main/java/com/sparrowwallet/sparrow/control/CopyableCoinLabel.java

@@ -11,6 +11,7 @@ import javafx.scene.control.Tooltip;
 import javafx.scene.input.Clipboard;
 import javafx.scene.input.ClipboardContent;
 import javafx.event.EventHandler;
+import javafx.scene.input.MouseButton;
 import javafx.scene.input.MouseEvent;
 
 public class CopyableCoinLabel extends CopyableLabel {
@@ -29,6 +30,10 @@ public class CopyableCoinLabel extends CopyableLabel {
         valueProperty().addListener((observable, oldValue, newValue) -> setValueAsText((Long)newValue, Config.get().getUnitFormat(), Config.get().getBitcoinUnit()));
 
         setOnMouseClicked(event -> {
+            if(!event.getButton().equals(MouseButton.PRIMARY)) {
+                return;
+            }
+
             if(bitcoinUnit == null) {
                 bitcoinUnit = Config.get().getBitcoinUnit();
             }

src/main/java/com/sparrowwallet/sparrow/control/DevicePane.java

@@ -453,20 +453,26 @@ public class DevicePane extends TitledDescriptionPane {
         });
         vBox.getChildren().addAll(pinField, enterPinButton);
 
-        TilePane tilePane = new TilePane();
-        tilePane.setPrefColumns(3);
-        tilePane.setHgap(10);
-        tilePane.setVgap(10);
-        tilePane.setMaxWidth(150);
-        tilePane.setMaxHeight(120);
+        GridPane gridPane = new GridPane();
+        gridPane.setHgap(10);
+        gridPane.setVgap(10);
+        gridPane.setMaxWidth(150);
+        gridPane.setMaxHeight(device.getModel().hasZeroInPin() ? 160 : 120);
 
-        int[] digits = new int[] {7, 8, 9, 4, 5, 6, 1, 2, 3};
+        int[] digits = device.getModel().hasZeroInPin() ? new int[] {7, 8, 9, 4, 5, 6, 1, 2, 3, 0} : new int[] {7, 8, 9, 4, 5, 6, 1, 2, 3};
         for(int i = 0; i < digits.length; i++) {
             Button pinButton = new Button();
             Glyph circle = new Glyph(FontAwesome5.FONT_NAME, "CIRCLE");
             pinButton.setGraphic(circle);
             pinButton.setUserData(digits[i]);
-            tilePane.getChildren().add(pinButton);
+            GridPane.setRowIndex(pinButton, i / 3);
+            GridPane.setColumnIndex(pinButton, i % 3);
+            if((i / 3) == 3) {
+                GridPane.setHgrow(pinButton, Priority.ALWAYS);
+                GridPane.setColumnSpan(pinButton, 3);
+                pinButton.setMaxWidth(Double.MAX_VALUE);
+            }
+            gridPane.getChildren().add(pinButton);
             pinButton.setOnAction(event -> {
                 pinField.setText(pinField.getText() + pinButton.getUserData());
             });
@@ -474,7 +480,7 @@ public class DevicePane extends TitledDescriptionPane {
 
         HBox contentBox = new HBox();
         contentBox.setSpacing(50);
-        contentBox.getChildren().add(tilePane);
+        contentBox.getChildren().add(gridPane);
         contentBox.getChildren().add(vBox);
         contentBox.setPadding(new Insets(10, 0, 10, 0));
         contentBox.setAlignment(Pos.TOP_CENTER);

src/main/java/com/sparrowwallet/sparrow/control/EntryCell.java

@@ -5,6 +5,8 @@ import com.sparrowwallet.drongo.OsType;
 import com.sparrowwallet.drongo.Utils;
 import com.sparrowwallet.drongo.address.Address;
 import com.sparrowwallet.drongo.protocol.*;
+import com.sparrowwallet.drongo.silentpayments.SilentPayment;
+import com.sparrowwallet.drongo.silentpayments.SilentPaymentAddress;
 import com.sparrowwallet.drongo.wallet.*;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
@@ -66,8 +68,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
             setText(null);
             setGraphic(null);
         } else {
-            if(entry instanceof TransactionEntry) {
-                TransactionEntry transactionEntry = (TransactionEntry)entry;
+            if(entry instanceof TransactionEntry transactionEntry) {
                 if(transactionEntry.getBlockTransaction().getHeight() == -1) {
                     setText("Unconfirmed Parent");
                     setContextMenu(new UnconfirmedTransactionContextMenu(transactionEntry));
@@ -101,7 +102,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
                 actionBox.getChildren().add(viewTransactionButton);
 
                 BlockTransaction blockTransaction = transactionEntry.getBlockTransaction();
-                if(blockTransaction.getHeight() <= 0 && canRBF(blockTransaction) &&
+                if(blockTransaction.getHeight() <= 0 && canRBF(blockTransaction, transactionEntry.getWallet()) &&
                         Config.get().isIncludeMempoolOutputs() && transactionEntry.getWallet().allInputsFromWallet(blockTransaction.getHash())) {
                     Button increaseFeeButton = new Button("");
                     increaseFeeButton.setGraphic(getIncreaseFeeRBFGlyph());
@@ -121,8 +122,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
                 }
 
                 setGraphic(actionBox);
-            } else if(entry instanceof NodeEntry) {
-                NodeEntry nodeEntry = (NodeEntry)entry;
+            } else if(entry instanceof NodeEntry nodeEntry) {
                 Address address = nodeEntry.getAddress();
                 setText(address.toString());
                 setContextMenu(new AddressContextMenu(address, nodeEntry.getOutputDescriptor(), nodeEntry, true, getTreeTableView()));
@@ -163,8 +163,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
                     setContextMenu(null);
                     setGraphic(new HBox());
                 }
-            } else if(entry instanceof HashIndexEntry) {
-                HashIndexEntry hashIndexEntry = (HashIndexEntry)entry;
+            } else if(entry instanceof HashIndexEntry hashIndexEntry) {
                 setText(hashIndexEntry.getDescription());
                 setContextMenu(getTreeTableView().getStyleClass().contains("bip47") ? null : new HashIndexEntryContextMenu(getTreeTableView(), hashIndexEntry));
                 Tooltip tooltip = new Tooltip();
@@ -212,13 +211,14 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
 
     private static void increaseFee(TransactionEntry transactionEntry, boolean cancelTransaction) {
         BlockTransaction blockTransaction = transactionEntry.getBlockTransaction();
+        boolean silentPaymentTransaction = transactionEntry.getWallet().isSilentPaymentsTransaction(blockTransaction);
         Map<BlockTransactionHashIndex, WalletNode> walletTxos = transactionEntry.getWallet().getWalletTxos();
         List<BlockTransactionHashIndex> utxos = transactionEntry.getChildren().stream()
                 .filter(e -> e instanceof HashIndexEntry)
                 .map(e -> (HashIndexEntry)e)
                 .filter(e -> e.getType().equals(HashIndexEntry.Type.INPUT) && e.isSpendable())
                 .map(e -> blockTransaction.getTransaction().getInputs().get((int)e.getHashIndex().getIndex()))
-                .filter(i -> Config.get().isMempoolFullRbf() || i.isReplaceByFeeEnabled())
+                .filter(i -> Config.get().isMempoolFullRbf() || i.isReplaceByFeeEnabled() || silentPaymentTransaction)
                 .map(txInput -> walletTxos.keySet().stream().filter(txo -> txo.getHash().equals(txInput.getOutpoint().getHash()) && txo.getIndex() == txInput.getOutpoint().getIndex()).findFirst().get())
                 .collect(Collectors.toList());
 
@@ -243,6 +243,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
                 .collect(Collectors.toList());
 
         boolean consolidationTransaction = consolidationOutputs.size() == blockTransaction.getTransaction().getOutputs().size() && consolidationOutputs.size() == 1;
+        boolean safeToAddInputsOrOutputs = transactionEntry.getWallet().isSafeToAddInputsOrOutputs(blockTransaction);
         long changeTotal = ourOutputs.stream().mapToLong(TransactionOutput::getValue).sum() - consolidationOutputs.stream().mapToLong(TransactionOutput::getValue).sum();
         Transaction tx = blockTransaction.getTransaction();
         double vSize = tx.getVirtualSize();
@@ -257,7 +258,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
         List<OutputGroup> outputGroups = transactionEntry.getWallet().getGroupedUtxos(txoFilters, feeRate, AppServices.getMinimumRelayFeeRate(), Config.get().isGroupByAddress())
                 .stream().filter(outputGroup -> outputGroup.getEffectiveValue() >= 0).collect(Collectors.toList());
         Collections.shuffle(outputGroups);
-        while((double)changeTotal / vSize < getMaxFeeRate() && !outputGroups.isEmpty() && !cancelTransaction && !consolidationTransaction) {
+        while((double)changeTotal / vSize < getMaxFeeRate() && !outputGroups.isEmpty() && !cancelTransaction && !consolidationTransaction && safeToAddInputsOrOutputs) {
             //If there is insufficient change output, include another random output group so the fee can be increased
             OutputGroup outputGroup = outputGroups.remove(0);
             for(BlockTransactionHashIndex utxo : outputGroup.getUtxos()) {
@@ -298,9 +299,13 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
                     label += " (Replaced By Fee)";
                 }
 
-                if(txOutput.getScript().getToAddress() != null) {
+                Address address = txOutput.getScript().getToAddress();
+                if(address != null) {
+                    long value = txOutput.getValue();
                     //Disable change creation by enabling max payment when there is only one output and no additional UTXOs included
-                    return new Payment(txOutput.getScript().getToAddress(), label, txOutput.getValue(), blockTransaction.getTransaction().getOutputs().size() == 1 && rbfChange == 0);
+                    boolean sendMax = blockTransaction.getTransaction().getOutputs().size() == 1 && rbfChange == 0;
+                    SilentPaymentAddress silentPaymentAddress = transactionEntry.getWallet().getSilentPaymentAddress(address);
+                    return silentPaymentAddress == null ? new Payment(address, label, value, sendMax) : new SilentPayment(silentPaymentAddress, label, value, sendMax);
                 }
 
                 return null;
@@ -337,7 +342,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
         }
 
         EventManager.get().post(new SendActionEvent(transactionEntry.getWallet(), utxos));
-        Platform.runLater(() -> EventManager.get().post(new SpendUtxoEvent(transactionEntry.getWallet(), utxos, payments, opReturns.isEmpty() ? null : opReturns, rbfFee, true, blockTransaction)));
+        Platform.runLater(() -> EventManager.get().post(new SpendUtxoEvent(transactionEntry.getWallet(), utxos, payments, opReturns.isEmpty() ? null : opReturns, rbfFee, true, blockTransaction, safeToAddInputsOrOutputs)));
     }
 
     private static Double getMaxFeeRate() {
@@ -394,11 +399,11 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
         Payment payment = new Payment(freshAddress, label, inputTotal, true);
 
         EventManager.get().post(new SendActionEvent(transactionEntry.getWallet(), utxos));
-        Platform.runLater(() -> EventManager.get().post(new SpendUtxoEvent(transactionEntry.getWallet(), utxos, List.of(payment), null, blockTransaction.getFee(), true, null)));
+        Platform.runLater(() -> EventManager.get().post(new SpendUtxoEvent(transactionEntry.getWallet(), utxos, List.of(payment), null, blockTransaction.getFee(), true, null, true)));
     }
 
-    private static boolean canRBF(BlockTransaction blockTransaction) {
-        return Config.get().isMempoolFullRbf() || blockTransaction.getTransaction().isReplaceByFee();
+    private static boolean canRBF(BlockTransaction blockTransaction, Wallet wallet) {
+        return Config.get().isMempoolFullRbf() || blockTransaction.getTransaction().isReplaceByFee() || wallet.isSilentPaymentsTransaction(blockTransaction);
     }
 
     private static boolean canSignMessage(WalletNode walletNode) {
@@ -476,7 +481,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
                 tooltip += "\nFee rate: " + String.format("%.2f", feeRate) + " sats/vB";
             }
 
-            tooltip += "\nRBF: " + (canRBF(transactionEntry.getBlockTransaction()) ? "Enabled" : "Disabled");
+            tooltip += "\nRBF: " + (canRBF(transactionEntry.getBlockTransaction(), transactionEntry.getWallet()) ? "Enabled" : "Disabled");
         }
 
         return tooltip;
@@ -544,6 +549,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
 
     private static class UnconfirmedTransactionContextMenu extends ContextMenu {
         public UnconfirmedTransactionContextMenu(TransactionEntry transactionEntry) {
+            Wallet wallet = transactionEntry.getWallet();
             BlockTransaction blockTransaction = transactionEntry.getBlockTransaction();
             MenuItem viewTransaction = new MenuItem("View Transaction");
             viewTransaction.setGraphic(getViewTransactionGlyph());
@@ -553,7 +559,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
             });
             getItems().add(viewTransaction);
 
-            if(canRBF(blockTransaction) && Config.get().isIncludeMempoolOutputs() && transactionEntry.getWallet().allInputsFromWallet(blockTransaction.getHash())) {
+            if(canRBF(blockTransaction, wallet) && Config.get().isIncludeMempoolOutputs() && transactionEntry.getWallet().allInputsFromWallet(blockTransaction.getHash())) {
                 MenuItem increaseFee = new MenuItem("Increase Fee (RBF)");
                 increaseFee.setGraphic(getIncreaseFeeRBFGlyph());
                 increaseFee.setOnAction(AE -> {
@@ -564,7 +570,7 @@ public class EntryCell extends TreeTableCell<Entry, Entry> implements Confirmati
                 getItems().add(increaseFee);
             }
 
-            if(canRBF(blockTransaction) && Config.get().isIncludeMempoolOutputs() && transactionEntry.getWallet().allInputsFromWallet(blockTransaction.getHash())) {
+            if(canRBF(blockTransaction, wallet) && Config.get().isIncludeMempoolOutputs() && transactionEntry.getWallet().allInputsFromWallet(blockTransaction.getHash())) {
                 MenuItem cancelTx = new MenuItem("Cancel Transaction (RBF)");
                 cancelTx.setGraphic(getCancelTransactionRBFGlyph());
                 cancelTx.setOnAction(AE -> {

src/main/java/com/sparrowwallet/sparrow/control/FeeRangeSlider.java

@@ -1,5 +1,6 @@
 package com.sparrowwallet.sparrow.control;
 
+import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.net.FeeRatesSource;
 import javafx.application.Platform;
@@ -7,6 +8,7 @@ import javafx.scene.Node;
 import javafx.scene.control.Slider;
 import javafx.util.StringConverter;
 
+import java.text.DecimalFormat;
 import java.util.*;
 import java.util.stream.Collectors;
 
@@ -14,9 +16,11 @@ import static com.sparrowwallet.sparrow.AppServices.*;
 
 public class FeeRangeSlider extends Slider {
     private static final double FEE_RATE_SCROLL_INCREMENT = 0.01;
+    private static final DecimalFormat INTEGER_FEE_RATE_FORMAT = new DecimalFormat("0");
+    private static final DecimalFormat FRACTIONAL_FEE_RATE_FORMAT = new DecimalFormat("0.###");
 
     public FeeRangeSlider() {
-        super(0, FEE_RATES_RANGE.size() - 1, 0);
+        super(0, AppServices.getFeeRatesRange().size() - 1, 0);
         setMajorTickUnit(1);
         setMinorTickCount(0);
         setSnapToTicks(false);
@@ -27,11 +31,11 @@ public class FeeRangeSlider extends Slider {
         setLabelFormatter(new StringConverter<>() {
             @Override
             public String toString(Double object) {
-                Long feeRate = LONG_FEE_RATES_RANGE.get(object.intValue());
+                Double feeRate = AppServices.getLongFeeRatesRange().get(object.intValue());
                 if(isLongFeeRange() && feeRate >= 1000) {
-                    return feeRate / 1000 + "k";
+                    return INTEGER_FEE_RATE_FORMAT.format(feeRate / 1000) + "k";
                 }
-                return Long.toString(feeRate);
+                return feeRate > 0d && feeRate < Transaction.DEFAULT_MIN_RELAY_FEE ? FRACTIONAL_FEE_RATE_FORMAT.format(feeRate) : INTEGER_FEE_RATE_FORMAT.format(feeRate);
             }
 
             @Override
@@ -51,10 +55,10 @@ public class FeeRangeSlider extends Slider {
         setOnScroll(event -> {
             if(event.getDeltaY() != 0) {
                 double newFeeRate = getFeeRate() + (event.getDeltaY() > 0 ? FEE_RATE_SCROLL_INCREMENT : -FEE_RATE_SCROLL_INCREMENT);
-                if(newFeeRate < LONG_FEE_RATES_RANGE.get(0)) {
-                    newFeeRate = LONG_FEE_RATES_RANGE.get(0);
-                } else if(newFeeRate > LONG_FEE_RATES_RANGE.get(LONG_FEE_RATES_RANGE.size() - 1)) {
-                    newFeeRate = LONG_FEE_RATES_RANGE.get(LONG_FEE_RATES_RANGE.size() - 1);
+                if(newFeeRate < AppServices.getLongFeeRatesRange().getFirst()) {
+                    newFeeRate = AppServices.getLongFeeRatesRange().getFirst();
+                } else if(newFeeRate > AppServices.getLongFeeRatesRange().getLast()) {
+                    newFeeRate = AppServices.getLongFeeRatesRange().getLast();
                 }
                 setFeeRate(newFeeRate);
             }
@@ -62,27 +66,79 @@ public class FeeRangeSlider extends Slider {
     }
 
     public double getFeeRate() {
-        return Math.pow(2.0, getValue());
+        return getFeeRate(AppServices.getMinimumRelayFeeRate());
+    }
+
+    public double getFeeRate(Double minRelayFeeRate) {
+        if(minRelayFeeRate >= Transaction.DEFAULT_MIN_RELAY_FEE) {
+            return Math.pow(2.0, getValue());
+        }
+
+        if(getValue() < 1.0d) {
+            if(minRelayFeeRate == 0.0d) {
+                return getValue();
+            }
+            return Math.pow(minRelayFeeRate, 1.0d - getValue());
+        }
+
+        return Math.pow(2.0, getValue() - 1.0d);
     }
 
     public void setFeeRate(double feeRate) {
-        double value = Math.log(feeRate) / Math.log(2);
+        setFeeRate(feeRate, AppServices.getMinimumRelayFeeRate());
+    }
+
+    public void setFeeRate(double feeRate, Double minRelayFeeRate) {
+        double value = getValue(feeRate, minRelayFeeRate);
         updateMaxFeeRange(value);
         setValue(value);
     }
 
+    private double getValue(double feeRate, Double minRelayFeeRate) {
+        double value;
+
+        if(minRelayFeeRate >= Transaction.DEFAULT_MIN_RELAY_FEE) {
+            value = Math.log(feeRate) / Math.log(2);
+        } else {
+            if(feeRate < Transaction.DEFAULT_MIN_RELAY_FEE) {
+                if(minRelayFeeRate == 0.0d) {
+                    return feeRate;
+                }
+                value = 1.0d - (Math.log(feeRate) / Math.log(minRelayFeeRate));
+            } else {
+                value = (Math.log(feeRate) / Math.log(2.0)) + 1.0d;
+            }
+        }
+
+        return value;
+    }
+
+    public void updateFeeRange(Double minRelayFeeRate, Double previousMinRelayFeeRate) {
+        if(minRelayFeeRate != null && previousMinRelayFeeRate != null) {
+            setFeeRate(getFeeRate(previousMinRelayFeeRate), minRelayFeeRate);
+        }
+        setMinorTickCount(1);
+        setMinorTickCount(0);
+    }
+
     private void updateMaxFeeRange(double value) {
         if(value >= getMax() && !isLongFeeRange()) {
-            setMax(LONG_FEE_RATES_RANGE.size() - 1);
+            if(AppServices.getMinimumRelayFeeRate() < Transaction.DEFAULT_MIN_RELAY_FEE) {
+                setMin(1.0d);
+            }
+            setMax(AppServices.getLongFeeRatesRange().size() - 1);
             updateTrackHighlight();
         } else if(value == getMin() && isLongFeeRange()) {
-            setMax(FEE_RATES_RANGE.size() - 1);
+            if(AppServices.getMinimumRelayFeeRate() < Transaction.DEFAULT_MIN_RELAY_FEE) {
+                setMin(0.0d);
+            }
+            setMax(AppServices.getFeeRatesRange().size() - 1);
             updateTrackHighlight();
         }
     }
 
-    private boolean isLongFeeRange() {
-        return getMax() > FEE_RATES_RANGE.size() - 1;
+    public boolean isLongFeeRange() {
+        return getMax() > AppServices.getFeeRatesRange().size() - 1;
     }
 
     public void updateTrackHighlight() {
@@ -137,9 +193,9 @@ public class FeeRangeSlider extends Slider {
     }
 
     private int getPercentageOfFeeRange(Double feeRate) {
-        double index = Math.log(feeRate) / Math.log(2);
+        double index = getValue(feeRate, AppServices.getMinimumRelayFeeRate());
         if(isLongFeeRange()) {
-            index *= ((double)FEE_RATES_RANGE.size() / (LONG_FEE_RATES_RANGE.size())) * 0.99;
+            index *= ((double)AppServices.getFeeRatesRange().size() / (AppServices.getLongFeeRatesRange().size())) * 0.99;
         }
         return (int)Math.round(index * 10.0);
     }

src/main/java/com/sparrowwallet/sparrow/control/MessageSignDialog.java

@@ -240,6 +240,9 @@ public class MessageSignDialog extends Dialog<ButtonBar.ButtonData> {
                         setFormatFromScriptType(address.getScriptType());
                         if(wallet != null) {
                             setWalletNodeFromAddress(wallet, address);
+                            if(walletNode != null) {
+                                setFormatFromScriptType(getSigningScriptType(walletNode));
+                            }
                         }
                     } catch(InvalidAddressException e) {
                         //can't happen
@@ -273,7 +276,7 @@ public class MessageSignDialog extends Dialog<ButtonBar.ButtonData> {
             }
 
             if(wallet != null && walletNode != null) {
-                setFormatFromScriptType(wallet.getScriptType());
+                setFormatFromScriptType(getSigningScriptType(walletNode));
             } else {
                 formatGroup.selectToggle(formatElectrum);
             }
@@ -287,9 +290,13 @@ public class MessageSignDialog extends Dialog<ButtonBar.ButtonData> {
     }
 
     private boolean canSign(Wallet wallet) {
-        return wallet.getKeystores().get(0).hasPrivateKey()
-                || wallet.getKeystores().get(0).getSource() == KeystoreSource.HW_USB
-                || wallet.getKeystores().get(0).getWalletModel().isCard();
+        return wallet.getKeystores().getFirst().hasPrivateKey()
+                || wallet.getKeystores().getFirst().getSource() == KeystoreSource.HW_USB
+                || wallet.getKeystores().getFirst().getWalletModel().isCard();
+    }
+
+    private boolean canSignBip322(Wallet wallet) {
+        return wallet.getKeystores().getFirst().hasPrivateKey();
     }
 
     private Address getAddress()throws InvalidAddressException {
@@ -313,6 +320,11 @@ public class MessageSignDialog extends Dialog<ButtonBar.ButtonData> {
         walletNode = wallet.getWalletAddresses().get(address);
     }
 
+    private ScriptType getSigningScriptType(WalletNode walletNode) {
+        ScriptType scriptType = walletNode.getWallet().getScriptType();
+        return canSign(walletNode.getWallet()) && !canSignBip322(walletNode.getWallet()) ? ScriptType.P2PKH : scriptType;
+    }
+
     private void setFormatFromScriptType(ScriptType scriptType) {
         formatElectrum.setDisable(scriptType == ScriptType.P2TR);
         formatTrezor.setDisable(scriptType == ScriptType.P2TR || scriptType == ScriptType.P2PKH);
@@ -345,7 +357,7 @@ public class MessageSignDialog extends Dialog<ButtonBar.ButtonData> {
 
         //Note we can expect a single keystore due to the check in the constructor
         Wallet signingWallet = walletNode.getWallet();
-        if(signingWallet.getKeystores().get(0).hasPrivateKey()) {
+        if(signingWallet.getKeystores().getFirst().hasPrivateKey()) {
             if(signingWallet.isEncrypted()) {
                 EventManager.get().post(new RequestOpenWalletsEvent());
             } else {
@@ -358,7 +370,7 @@ public class MessageSignDialog extends Dialog<ButtonBar.ButtonData> {
 
     private void signUnencryptedKeystore(Wallet decryptedWallet) {
         try {
-            Keystore keystore = decryptedWallet.getKeystores().get(0);
+            Keystore keystore = decryptedWallet.getKeystores().getFirst();
             ECKey privKey = keystore.getKey(walletNode);
             String signatureText;
             if(isBip322()) {
@@ -378,8 +390,8 @@ public class MessageSignDialog extends Dialog<ButtonBar.ButtonData> {
     }
 
     private void signDeviceKeystore(Wallet deviceWallet) {
-        List<String> fingerprints = List.of(deviceWallet.getKeystores().get(0).getKeyDerivation().getMasterFingerprint());
-        KeyDerivation fullDerivation = deviceWallet.getKeystores().get(0).getKeyDerivation().extend(walletNode.getDerivation());
+        List<String> fingerprints = List.of(deviceWallet.getKeystores().getFirst().getKeyDerivation().getMasterFingerprint());
+        KeyDerivation fullDerivation = deviceWallet.getKeystores().getFirst().getKeyDerivation().extend(walletNode.getDerivation());
         DeviceSignMessageDialog deviceSignMessageDialog = new DeviceSignMessageDialog(fingerprints, deviceWallet, message.getText().trim(), fullDerivation);
         deviceSignMessageDialog.initOwner(getDialogPane().getScene().getWindow());
         Optional<String> optSignature = deviceSignMessageDialog.showAndWait();

src/main/java/com/sparrowwallet/sparrow/control/PrivateKeySweepDialog.java

@@ -398,14 +398,14 @@ public class PrivateKeySweepDialog extends Dialog<Transaction> {
 
         double feeRate = feeRange.getFeeRate();
         long fee = (long)Math.ceil(noFeeTransaction.getVirtualSize() * feeRate);
-        if(feeRate == Transaction.DEFAULT_MIN_RELAY_FEE) {
+        if(feeRate == AppServices.getMinimumRelayFeeRate() && feeRate > 0d) {
             fee++;
         }
 
         long dustThreshold = destAddress.getScriptType().getDustThreshold(sweepOutput, Transaction.DUST_RELAY_TX_FEE);
         if(total - fee <= dustThreshold) {
-            feeRate = Transaction.DEFAULT_MIN_RELAY_FEE;
-            fee = (long)Math.ceil(noFeeTransaction.getVirtualSize() * feeRate) + 1;
+            feeRate = AppServices.getMinimumRelayFeeRate();
+            fee = (long)Math.ceil(noFeeTransaction.getVirtualSize() * feeRate) + (feeRate > 0d ? 1 : 0);
 
             if(total - fee <= dustThreshold) {
                 AppServices.showErrorDialog("Insufficient funds", "The unspent outputs for this private key contain insufficient funds to spend (" + total + " sats).");

src/main/java/com/sparrowwallet/sparrow/control/QRScanDialog.java

@@ -122,19 +122,21 @@ public class QRScanDialog extends Dialog<QRScanDialog.Result> {
             if(percentComplete.get() <= 0.0) {
                 Platform.runLater(() -> percentComplete.set(opening ? 0.0 : -1.0));
             }
+        });
 
-            if(opening) {
+        webcamService.openedProperty().addListener((_, _, opened) -> {
+            if(opened) {
                 Platform.runLater(() -> {
                     try {
                         postOpenUpdate = true;
-                        List<CaptureDevice> newDevices = new ArrayList<>(webcamService.getDevices());
+                        List<CaptureDevice> newDevices = new ArrayList<>(webcamService.getAvailableDevices());
                         newDevices.removeAll(foundDevices);
                         foundDevices.addAll(newDevices);
                         foundDevices.removeIf(device -> !webcamService.getDevices().contains(device));
 
-                        if(Config.get().getWebcamDevice() != null && webcamDeviceProperty.get() == null) {
+                        if(webcamService.getDevice() != null) {
                             for(CaptureDevice device : foundDevices) {
-                                if(device.getName().equals(Config.get().getWebcamDevice())) {
+                                if(device.equals(webcamService.getDevice())) {
                                     webcamDeviceProperty.set(device);
                                 }
                             }
@@ -146,10 +148,7 @@ public class QRScanDialog extends Dialog<QRScanDialog.Result> {
                         postOpenUpdate = false;
                     }
                 });
-            }
-        });
-        webcamService.closedProperty().addListener((_, _, closed) -> {
-           if(closed && webcamResolutionProperty.get() != null) {
+            } else if(webcamResolutionProperty.get() != null) {
                webcamService.setResolution(webcamResolutionProperty.get());
                webcamService.setDevice(webcamDeviceProperty.get());
                Platform.runLater(() -> {
@@ -190,6 +189,7 @@ public class QRScanDialog extends Dialog<QRScanDialog.Result> {
         });
         webcamDeviceProperty.addListener((_, _, newValue) -> {
             Config.get().setWebcamDevice(newValue.getName());
+            Config.get().setWebcamDeviceId(newValue.getUniqueId());
             if(!Objects.equals(webcamService.getDevice(), newValue)) {
                 webcamService.cancel();
             }

src/main/java/com/sparrowwallet/sparrow/control/RecentBlocksView.java

@@ -17,8 +17,10 @@ import javafx.util.Duration;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
+import static com.sparrowwallet.sparrow.AppServices.TARGET_BLOCKS_RANGE;
 import static com.sparrowwallet.sparrow.control.BlockCube.CUBE_SIZE;
 
 public class RecentBlocksView extends Pane {
@@ -48,7 +50,9 @@ public class RecentBlocksView extends Pane {
             }
         }));
 
-        updateFeeRatesSource(Config.get().getFeeRatesSource());
+        FeeRatesSource feeRatesSource = Config.get().getFeeRatesSource();
+        feeRatesSource = (feeRatesSource == null ? FeeRatesSource.MEMPOOL_SPACE : feeRatesSource);
+        updateFeeRatesSource(feeRatesSource);
         Tooltip.install(this, tooltip);
     }
 
@@ -104,7 +108,7 @@ public class RecentBlocksView extends Pane {
         }
     }
 
-    public void addNewBlock(List<BlockSummary> latestBlocks, Double currentFeeRate) {
+    private void addNewBlock(List<BlockSummary> latestBlocks, Double currentFeeRate) {
         if(getCubes().isEmpty()) {
             return;
         }
@@ -136,6 +140,14 @@ public class RecentBlocksView extends Pane {
         }
     }
 
+    public void updateFeeRate(Map<Integer, Double> targetBlockFeeRates) {
+        int defaultTarget = TARGET_BLOCKS_RANGE.get((TARGET_BLOCKS_RANGE.size() / 2) - 1);
+        if(targetBlockFeeRates.get(defaultTarget) != null) {
+            Double defaultRate = targetBlockFeeRates.get(defaultTarget);
+            updateFeeRate(defaultRate);
+        }
+    }
+
     public void updateFeeRate(Double currentFeeRate) {
         if(!getCubes().isEmpty()) {
             BlockCube firstCube = getCubes().getFirst();

src/main/java/com/sparrowwallet/sparrow/control/ScriptArea.java

@@ -2,6 +2,7 @@ package com.sparrowwallet.sparrow.control;
 
 import com.sparrowwallet.drongo.protocol.Script;
 import com.sparrowwallet.drongo.protocol.ScriptChunk;
+import com.sparrowwallet.drongo.protocol.ScriptOpCodes;
 import javafx.geometry.Pos;
 import org.controlsfx.control.decoration.Decorator;
 import org.controlsfx.control.decoration.GraphicDecoration;
@@ -53,7 +54,11 @@ public class ScriptArea extends CodeArea {
             for (int i = 0; i < script.getChunks().size(); i++) {
                 ScriptChunk chunk = script.getChunks().get(i);
                 if(chunk.isOpCode()) {
-                    append(chunk.toString(), "script-opcode");
+                    if(chunk.getOpcode() == ScriptOpCodes.OP_0 && witnessScript != null) {
+                        append("<empty>", "script-other");
+                    } else {
+                        append(chunk.toString(), "script-opcode");
+                    }
                 } else if(chunk.isPubKey()) {
                     append("<pubkey" + pubKeyCount++ + ">", "script-pubkey");
                 } else if(chunk.isSignature()) {

src/main/java/com/sparrowwallet/sparrow/control/SendToManyDialog.java

@@ -5,36 +5,49 @@ import com.sparrowwallet.drongo.BitcoinUnit;
 import com.sparrowwallet.drongo.OsType;
 import com.sparrowwallet.drongo.address.Address;
 import com.sparrowwallet.drongo.address.InvalidAddressException;
+import com.sparrowwallet.drongo.dns.DnsPayment;
+import com.sparrowwallet.drongo.dns.DnsPaymentCache;
+import com.sparrowwallet.drongo.dns.DnsPaymentResolver;
+import com.sparrowwallet.drongo.dns.DnsPaymentValidationException;
 import com.sparrowwallet.drongo.protocol.Transaction;
+import com.sparrowwallet.drongo.silentpayments.SilentPayment;
+import com.sparrowwallet.drongo.silentpayments.SilentPaymentAddress;
+import com.sparrowwallet.drongo.uri.BitcoinURIParseException;
 import com.sparrowwallet.drongo.wallet.Payment;
 import com.sparrowwallet.sparrow.AppServices;
-import com.sparrowwallet.sparrow.glyphfont.FontAwesome5;
+import com.sparrowwallet.sparrow.EventManager;
+import com.sparrowwallet.sparrow.event.RequestConnectEvent;
+import com.sparrowwallet.sparrow.glyphfont.GlyphUtils;
+import com.sparrowwallet.sparrow.io.Config;
+import javafx.application.Platform;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
+import javafx.concurrent.Service;
+import javafx.concurrent.Task;
+import javafx.event.ActionEvent;
 import javafx.scene.Node;
 import javafx.scene.control.*;
-import javafx.scene.image.Image;
-import javafx.scene.image.ImageView;
 import javafx.scene.input.Clipboard;
 import javafx.scene.layout.StackPane;
 import javafx.stage.FileChooser;
 import javafx.util.StringConverter;
 import org.controlsfx.control.spreadsheet.*;
-import org.controlsfx.glyphfont.Glyph;
 
 import java.io.*;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Optional;
+import java.util.concurrent.ExecutionException;
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 
 public class SendToManyDialog extends Dialog<List<Payment>> {
     private final BitcoinUnit bitcoinUnit;
     private final SpreadsheetView spreadsheetView;
-    public static final AddressCellType ADDRESS = new AddressCellType();
+    public static final SendToAddressCellType SEND_TO_ADDRESS = new SendToAddressCellType();
 
-    public SendToManyDialog(BitcoinUnit bitcoinUnit) {
+    public SendToManyDialog(BitcoinUnit bitcoinUnit, List<Payment> payments) {
         this.bitcoinUnit = bitcoinUnit;
 
         final DialogPane dialogPane = new SendToManyDialogPane();
@@ -44,7 +57,8 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
         dialogPane.setHeaderText("Send to many recipients by specifying addresses and amounts.\nOnly the first row's label is necessary.");
         dialogPane.setGraphic(new DialogImage(DialogImage.Type.SPARROW));
 
-        List<Payment> initialPayments = IntStream.range(0, 100).mapToObj(i -> new Payment(null, null, -1, false)).collect(Collectors.toList());
+        List<Payment> initialPayments = IntStream.range(0, 100)
+                .mapToObj(i -> i < payments.size() ? payments.get(i) : new Payment(null, null, -1, false)).collect(Collectors.toList());
         Grid grid = getGrid(initialPayments);
 
         spreadsheetView = new SpreadsheetView(grid) {
@@ -69,14 +83,16 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
         dialogPane.setContent(stackPane);
 
         dialogPane.getButtonTypes().addAll(ButtonType.OK, ButtonType.CANCEL);
+        Button okButton = (Button) dialogPane.lookupButton(ButtonType.OK);
+        okButton.addEventFilter(ActionEvent.ACTION, event -> {
+            getPayments();
+            event.consume();
+        });
 
         final ButtonType loadCsvButtonType = new javafx.scene.control.ButtonType("Load CSV", ButtonBar.ButtonData.LEFT);
         dialogPane.getButtonTypes().add(loadCsvButtonType);
 
-        setResultConverter((dialogButton) -> {
-            ButtonBar.ButtonData data = dialogButton == null ? null : dialogButton.getButtonData();
-            return data == ButtonBar.ButtonData.OK_DONE ? getPayments() : null;
-        });
+        setResultConverter((_) -> null);
 
         dialogPane.setPrefWidth(850);
         dialogPane.setPrefHeight(500);
@@ -86,18 +102,24 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
     }
 
     private Grid getGrid(List<Payment> payments) {
-        int rowCount = payments.size();
+        return createGrid(payments.stream().map(payment -> new SendToPayment(payment, SendToAddress.fromPayment(payment))).collect(Collectors.toList()));
+    }
+
+    private Grid createGrid(List<SendToPayment> sendToPayments) {
+        int rowCount = sendToPayments.size();
         int columnCount = 3;
         GridBase grid = new GridBase(rowCount, columnCount);
         ObservableList<ObservableList<SpreadsheetCell>> rows = FXCollections.observableArrayList();
         for(int row = 0; row < grid.getRowCount(); ++row) {
+            SendToPayment sendToPayment = sendToPayments.get(row);
             final ObservableList<SpreadsheetCell> list = FXCollections.observableArrayList();
 
-            SpreadsheetCell addressCell = ADDRESS.createCell(row, 0, 1, 1, payments.get(row).getAddress());
+            SendToAddress sendToAddress = sendToPayment.sendToAddress();
+            SpreadsheetCell addressCell = SEND_TO_ADDRESS.createCell(row, 0, 1, 1, sendToAddress);
             addressCell.getStyleClass().add("fixed-width");
             list.add(addressCell);
 
-            double amount = (double)payments.get(row).getAmount();
+            double amount = (double)sendToPayment.payment().getAmount();
             if(bitcoinUnit == BitcoinUnit.BTC) {
                 amount = amount / Transaction.SATOSHIS_PER_BITCOIN;
             }
@@ -109,7 +131,7 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
             }
             list.add(amountCell);
 
-            list.add(SpreadsheetCellType.STRING.createCell(row, 2, 1, 1, payments.get(row).getLabel()));
+            list.add(SpreadsheetCellType.STRING.createCell(row, 2, 1, 1, sendToPayment.payment().getLabel()));
             rows.add(list);
         }
         grid.setRows(rows);
@@ -118,32 +140,49 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
         return grid;
     }
 
-    private List<Payment> getPayments() {
-        List<Payment> payments = new ArrayList<>();
-        Grid grid = spreadsheetView.getGrid();
-        String firstLabel = null;
-        for(int row = 0; row < grid.getRowCount(); row++) {
+    private void getPayments() {
+        if(needsResolution() && Config.get().hasServer() && !AppServices.isConnected() && !AppServices.isConnecting()) {
+            if(Config.get().getConnectToResolve() == null || Config.get().getConnectToResolve() == Boolean.FALSE) {
+                Platform.runLater(() -> {
+                    ConfirmationAlert confirmationAlert = new ConfirmationAlert("Connect to resolve?", "You are currently offline. Connect to resolve the addresses?", ButtonType.NO, ButtonType.YES);
+                    Optional<ButtonType> optType = confirmationAlert.showAndWait();
+                    if(confirmationAlert.isDontAskAgain() && optType.isPresent()) {
+                        Config.get().setConnectToResolve(optType.get() == ButtonType.YES);
+                    }
+                    if(optType.isPresent() && optType.get() == ButtonType.YES) {
+                        EventManager.get().post(new RequestConnectEvent());
+                    }
+                });
+            } else {
+                Platform.runLater(() -> EventManager.get().post(new RequestConnectEvent()));
+            }
+            return;
+        }
+
+        CreatePaymentsService createPaymentsService = new CreatePaymentsService();
+        createPaymentsService.setOnSucceeded(_ -> {
+            List<Payment> payments = createPaymentsService.getValue();
+            if(payments != null) {
+                setResult(payments);
+            }
+        });
+        createPaymentsService.setOnFailed(event -> {
+            Throwable ex = event.getSource().getException();
+            AppServices.showErrorDialog("Error creating payments", ex.getMessage());
+        });
+        createPaymentsService.start();
+    }
+
+    private boolean needsResolution() {
+        for(int row = 0; row < spreadsheetView.getGrid().getRowCount(); row++) {
             ObservableList<SpreadsheetCell> rowCells = spreadsheetView.getItems().get(row);
-            Address address = (Address)rowCells.get(0).getItem();
-            Double value = (Double)rowCells.get(1).getItem();
-            String label = (String)rowCells.get(2).getItem();
-            if(firstLabel == null) {
-                firstLabel = label;
-            }
-            if(label == null || label.isEmpty()) {
-                label = firstLabel;
-            }
-
-            if(address != null && value != null) {
-                if(bitcoinUnit == BitcoinUnit.BTC) {
-                    value = value * Transaction.SATOSHIS_PER_BITCOIN;
-                }
-
-                payments.add(new Payment(address, label, value.longValue(), false));
+            SendToAddress sendToAddress = (SendToAddress)rowCells.getFirst().getItem();
+            if(sendToAddress.hrn != null && DnsPaymentCache.getDnsPayment(sendToAddress.hrn) == null) {
+                return true;
             }
         }
 
-        return payments;
+        return false;
     }
 
     private class SendToManyDialogPane extends DialogPane {
@@ -153,7 +192,7 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
             if(buttonType.getButtonData() == ButtonBar.ButtonData.LEFT) {
                 Button loadButton = new Button(buttonType.getText());
                 loadButton.setGraphicTextGap(5);
-                loadButton.setGraphic(getGlyph(FontAwesome5.Glyph.ARROW_UP));
+                loadButton.setGraphic(GlyphUtils.getUpArrowGlyph());
                 final ButtonBar.ButtonData buttonData = buttonType.getButtonData();
                 ButtonBar.setButtonData(loadButton, buttonData);
                 loadButton.setOnAction(event -> {
@@ -168,7 +207,7 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
                     File file = fileChooser.showOpenDialog(this.getScene().getWindow());
                     if(file != null) {
                         try {
-                            List<Payment> csvPayments = new ArrayList<>();
+                            List<SendToPayment> csvPayments = new ArrayList<>();
                             try(Reader reader = new FileReader(file, StandardCharsets.UTF_8)) {
                                 CsvReader csvReader = new CsvReader(reader);
                                 while(csvReader.readRecord()) {
@@ -184,9 +223,22 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
                                         } else {
                                             amount = Long.parseLong(csvReader.get(1).replace(",", ""));
                                         }
-                                        Address address = Address.fromString(csvReader.get(0));
                                         String label = csvReader.get(2);
-                                        csvPayments.add(new Payment(address, label, amount, false));
+                                        Optional<String> optDnsPaymentHrn = DnsPayment.getHrn(csvReader.get(0));
+                                        if(optDnsPaymentHrn.isPresent()) {
+                                            Payment payment = new Payment(null, label, amount, false);
+                                            csvPayments.add(new SendToPayment(payment, new SendToAddress(optDnsPaymentHrn.get())));
+                                        } else {
+                                            try {
+                                                SilentPaymentAddress silentPaymentAddress = SilentPaymentAddress.from(csvReader.get(0));
+                                                Payment payment = new SilentPayment(silentPaymentAddress, label, amount, false);
+                                                csvPayments.add(new SendToPayment(payment, SendToAddress.fromPayment(payment)));
+                                            } catch(Exception e) {
+                                                Address address = Address.fromString(csvReader.get(0));
+                                                Payment payment = new Payment(address, label, amount, false);
+                                                csvPayments.add(new SendToPayment(payment, SendToAddress.fromPayment(payment)));
+                                            }
+                                        }
                                     } catch(NumberFormatException e) {
                                         //ignore and continue - probably a header line
                                     } catch(InvalidAddressException e) {
@@ -199,7 +251,7 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
                                     return;
                                 }
 
-                                spreadsheetView.setGrid(getGrid(csvPayments));
+                                spreadsheetView.setGrid(createGrid(csvPayments));
                             }
                         } catch(IOException e) {
                             AppServices.showErrorDialog("Cannot load CSV", e.getMessage());
@@ -214,24 +266,18 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
 
             return button;
         }
-
-        private Glyph getGlyph(FontAwesome5.Glyph glyphName) {
-            Glyph glyph = new Glyph(FontAwesome5.FONT_NAME, glyphName);
-            glyph.setFontSize(11);
-            return glyph;
-        }
     }
 
-    public static class AddressCellType extends SpreadsheetCellType<Address> {
-        public AddressCellType() {
-            this(new StringConverterWithFormat<>(new AddressStringConverter()) {
+    public static class SendToAddressCellType extends SpreadsheetCellType<SendToAddress> {
+        public SendToAddressCellType() {
+            this(new StringConverterWithFormat<>(new SendToAddressStringConverter()) {
                 @Override
-                public String toString(Address item) {
+                public String toString(SendToAddress item) {
                     return toStringFormat(item, ""); //$NON-NLS-1$
                 }
 
                 @Override
-                public Address fromString(String str) {
+                public SendToAddress fromString(String str) {
                     if(str == null || str.isEmpty()) { //$NON-NLS-1$
                         return null;
                     } else {
@@ -240,7 +286,7 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
                 }
 
                 @Override
-                public String toStringFormat(Address item, String format) {
+                public String toStringFormat(SendToAddress item, String format) {
                     try {
                         if(item == null) {
                             return ""; //$NON-NLS-1$
@@ -254,7 +300,7 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
             });
         }
 
-        public AddressCellType(StringConverter<Address> converter) {
+        public SendToAddressCellType(StringConverter<SendToAddress> converter) {
             super(converter);
         }
 
@@ -264,7 +310,7 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
         }
 
         public SpreadsheetCell createCell(final int row, final int column, final int rowSpan, final int columnSpan,
-                                          final Address value) {
+                                          final SendToAddress value) {
             SpreadsheetCell cell = new SpreadsheetCellBase(row, column, rowSpan, columnSpan, this);
             cell.setItem(value);
             return cell;
@@ -277,7 +323,7 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
 
         @Override
         public boolean match(Object value, Object... options) {
-            if(value instanceof Address)
+            if(value instanceof SendToAddress)
                 return true;
             else {
                 try {
@@ -290,9 +336,9 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
         }
 
         @Override
-        public Address convertValue(Object value) {
-            if(value instanceof Address)
-                return (Address)value;
+        public SendToAddress convertValue(Object value) {
+            if(value instanceof SendToAddress)
+                return (SendToAddress)value;
             else {
                 try {
                     return converter.fromString(value == null ? null : value.toString());
@@ -303,13 +349,155 @@ public class SendToManyDialog extends Dialog<List<Payment>> {
         }
 
         @Override
-        public String toString(Address item) {
+        public String toString(SendToAddress item) {
             return converter.toString(item);
         }
 
         @Override
-        public String toString(Address item, String format) {
-            return ((StringConverterWithFormat<Address>)converter).toStringFormat(item, format);
+        public String toString(SendToAddress item, String format) {
+            return ((StringConverterWithFormat<SendToAddress>)converter).toStringFormat(item, format);
         }
     };
+
+    public static class SendToAddress {
+        private final String hrn;
+        private final Address address;
+        private final SilentPaymentAddress silentPaymentAddress;
+
+        public SendToAddress(String hrn) {
+            this.hrn = hrn;
+            this.address = null;
+            this.silentPaymentAddress = null;
+        }
+
+        public SendToAddress(Address address) {
+            this.hrn = null;
+            this.address = address;
+            this.silentPaymentAddress = null;
+        }
+
+        public SendToAddress(SilentPaymentAddress silentPaymentAddress) {
+            this.hrn = null;
+            this.address = null;
+            this.silentPaymentAddress = silentPaymentAddress;
+        }
+
+        public String toString() {
+            return hrn == null ? silentPaymentAddress == null ? (address == null ? null : address.toString()) : silentPaymentAddress.toString() : hrn;
+        }
+
+        public static SendToAddress fromPayment(Payment payment) {
+            DnsPayment dnsPayment = DnsPaymentCache.getDnsPayment(payment);
+            if(dnsPayment != null) {
+                return new SendToAddress(dnsPayment.hrn());
+            }
+            return payment instanceof SilentPayment ? new SendToAddress(((SilentPayment)payment).getSilentPaymentAddress()) : new SendToAddress(payment.getAddress());
+        }
+
+        public Payment toPayment(String label, long value, boolean sendMax) throws DnsPaymentValidationException, IOException, ExecutionException, InterruptedException, BitcoinURIParseException {
+            if(hrn != null) {
+                DnsPayment dnsPayment = DnsPaymentCache.getDnsPayment(hrn);
+                if(dnsPayment == null) {
+                    DnsPaymentResolver resolver = new DnsPaymentResolver(hrn);
+                    Optional<DnsPayment> optDnsPayment = resolver.resolve();
+                    if(optDnsPayment.isPresent()) {
+                        dnsPayment = optDnsPayment.get();
+                        if(dnsPayment.hasAddress()) {
+                            DnsPaymentCache.putDnsPayment(dnsPayment.bitcoinURI().getAddress(), dnsPayment);
+                        } else if(dnsPayment.hasSilentPaymentAddress()) {
+                            DnsPaymentCache.putDnsPayment(dnsPayment.bitcoinURI().getSilentPaymentAddress(), dnsPayment);
+                        }
+                        return getPayment(optDnsPayment.get(), label, value, sendMax);
+                    } else {
+                        throw new IllegalArgumentException("Payment to " + hrn + " could not be resolved.");
+                    }
+                } else {
+                    return getPayment(dnsPayment, label, value, sendMax);
+                }
+            }
+
+            if(silentPaymentAddress != null) {
+                return new SilentPayment(silentPaymentAddress, label, value, sendMax);
+            } else {
+                return new Payment(address, label, value, sendMax);
+            }
+        }
+
+        private static Payment getPayment(DnsPayment dnsPayment, String label, long value, boolean sendMax) {
+            if(dnsPayment.hasAddress()) {
+                return new Payment(dnsPayment.bitcoinURI().getAddress(), label, value, sendMax);
+            } else if(dnsPayment.hasSilentPaymentAddress()) {
+                return new SilentPayment(dnsPayment.bitcoinURI().getSilentPaymentAddress(), label, value, sendMax);
+            } else {
+                throw new IllegalArgumentException("Payment to " + dnsPayment + " has no associated address.");
+            }
+        }
+    }
+
+    private static class SendToAddressStringConverter extends StringConverter<SendToAddress> {
+        private final AddressStringConverter addressStringConverter = new AddressStringConverter();
+
+        @Override
+        public SendToAddress fromString(String value) {
+            Optional<String> optDnsPaymentHrn = DnsPayment.getHrn(value);
+            if(optDnsPaymentHrn.isPresent()) {
+                return new SendToAddress(optDnsPaymentHrn.get());
+            }
+
+            try {
+                SilentPaymentAddress silentPaymentAddress = SilentPaymentAddress.from(value);
+                return new SendToAddress(silentPaymentAddress);
+            } catch(Exception e) {
+                Address address = addressStringConverter.fromString(value);
+                return address == null ? null : new SendToAddress(address);
+            }
+        }
+
+        @Override
+        public String toString(SendToAddress value) {
+            return value.toString();
+        }
+    }
+
+    private class CreatePaymentsService extends Service<List<Payment>> {
+        @Override
+        protected Task<List<Payment>> createTask() {
+            return new Task<>() {
+                @Override
+                protected List<Payment> call() throws Exception {
+                    return getPayments();
+                }
+            };
+        }
+
+        private List<Payment> getPayments() throws DnsPaymentValidationException, IOException, ExecutionException, InterruptedException, BitcoinURIParseException {
+            List<Payment> payments = new ArrayList<>();
+            Grid grid = spreadsheetView.getGrid();
+            String firstLabel = null;
+            for(int row = 0; row < grid.getRowCount(); row++) {
+                ObservableList<SpreadsheetCell> rowCells = spreadsheetView.getItems().get(row);
+                SendToAddress sendToAddress = (SendToAddress)rowCells.get(0).getItem();
+                Double value = (Double)rowCells.get(1).getItem();
+                String label = (String)rowCells.get(2).getItem();
+                if(firstLabel == null) {
+                    firstLabel = label;
+                }
+                if(label == null || label.isEmpty()) {
+                    label = firstLabel;
+                }
+
+                if(sendToAddress != null && value != null) {
+                    if(bitcoinUnit == BitcoinUnit.BTC) {
+                        value = value * Transaction.SATOSHIS_PER_BITCOIN;
+                    }
+
+                    payments.add(sendToAddress.toPayment(label, value.longValue(), false));
+                }
+            }
+
+            return payments;
+        }
+    }
+
+    private record SendToPayment(Payment payment, SendToAddress sendToAddress) {}
 }

src/main/java/com/sparrowwallet/sparrow/control/TransactionDiagram.java

@@ -4,8 +4,12 @@ import com.sparrowwallet.drongo.KeyPurpose;
 import com.sparrowwallet.drongo.OsType;
 import com.sparrowwallet.drongo.address.Address;
 import com.sparrowwallet.drongo.bip47.PaymentCode;
+import com.sparrowwallet.drongo.dns.DnsPayment;
+import com.sparrowwallet.drongo.dns.DnsPaymentCache;
 import com.sparrowwallet.drongo.protocol.Sha256Hash;
 import com.sparrowwallet.drongo.protocol.TransactionOutput;
+import com.sparrowwallet.drongo.silentpayments.SilentPayment;
+import com.sparrowwallet.drongo.silentpayments.SilentPaymentAddress;
 import com.sparrowwallet.drongo.uri.BitcoinURI;
 import com.sparrowwallet.drongo.wallet.*;
 import com.sparrowwallet.sparrow.*;
@@ -22,6 +26,7 @@ import javafx.beans.property.SimpleBooleanProperty;
 import javafx.beans.property.SimpleObjectProperty;
 import javafx.embed.swing.SwingFXUtils;
 import javafx.event.EventHandler;
+import javafx.geometry.HPos;
 import javafx.geometry.Insets;
 import javafx.geometry.Pos;
 import javafx.scene.Group;
@@ -103,6 +108,7 @@ public class TransactionDiagram extends GridPane {
                 expandedDiagram.setId("transactionDiagram");
                 expandedDiagram.setExpanded(true);
                 expandedDiagram.setFinal(isFinal());
+                expandedDiagram.setMaxWidth(AppServices.getActiveWindow().getWidth() - 200);
                 updateDerivedDiagram(expandedDiagram);
 
                 HBox buttonBox = new HBox();
@@ -120,7 +126,7 @@ public class TransactionDiagram extends GridPane {
                 AppServices.setStageIcon(stage);
                 stage.setScene(scene);
                 stage.setOnShowing(e -> {
-                    AppServices.moveToActiveWindowScreen(stage, 600, 460);
+                    AppServices.moveToActiveWindowScreen(stage, expandedDiagram.getMaxWidth(), 460);
                 });
                 stage.setOnHidden(e -> {
                     expandedDiagram = null;
@@ -137,6 +143,39 @@ public class TransactionDiagram extends GridPane {
         }
     };
 
+    public TransactionDiagram() {
+        ColumnConstraints col1 = new ColumnConstraints();
+        col1.setPrefWidth(22);
+        col1.setHgrow(Priority.NEVER);
+
+        ColumnConstraints col2 = new ColumnConstraints();
+        col2.setHgrow(Priority.ALWAYS);
+        col2.setPercentWidth(25);
+        col2.setFillWidth(true);
+
+        ColumnConstraints col3 = new ColumnConstraints();
+        col3.setPrefWidth(140);
+        col3.setHgrow(Priority.NEVER);
+
+        ColumnConstraints col4 = new ColumnConstraints();
+        Label label = new Label();
+        col4.setMinWidth(TextUtils.computeTextWidth(label.getFont(), "Transaction", 0) + 20);
+        col4.setHgrow(Priority.NEVER);
+        col4.setHalignment(HPos.CENTER);
+
+        ColumnConstraints col5 = new ColumnConstraints();
+        col5.setPrefWidth(140);
+        col5.setHgrow(Priority.NEVER);
+
+        ColumnConstraints col6 = new ColumnConstraints();
+        col6.setHgrow(Priority.ALWAYS);
+        col6.setPercentWidth(25);
+        col6.setFillWidth(true);
+
+        getColumnConstraints().addAll(col1, col2, col3, col4, col5, col6);
+        setPadding(new Insets(0, 0, 0, 40));
+    }
+
     public void update(WalletTransaction walletTx) {
         setMinHeight(getDiagramHeight());
         setMaxHeight(getDiagramHeight());
@@ -165,7 +204,7 @@ public class TransactionDiagram extends GridPane {
 
         VBox messagePane = new VBox();
         messagePane.setPrefHeight(getDiagramHeight());
-        messagePane.setPadding(new Insets(0, 10, 0, 280));
+        messagePane.setPadding(new Insets(0, 10, 0, 10));
         messagePane.setAlignment(Pos.CENTER);
         messagePane.getChildren().add(createSpacer());
 
@@ -225,7 +264,6 @@ public class TransactionDiagram extends GridPane {
         GridPane.setConstraints(outputsPane, 5, 0);
 
         getChildren().clear();
-        getChildren().addAll(inputsTypePane, inputsPane, inputsLinesPane, txPane, outputsLinesPane, outputsPane);
 
         List<Payment> userPayments = getUserPayments();
         if(!isFinal() && userPayments.size() > 1) {
@@ -234,6 +272,8 @@ public class TransactionDiagram extends GridPane {
             getChildren().add(totalsPane);
         }
 
+        getChildren().addAll(inputsTypePane, inputsPane, inputsLinesPane, txPane, outputsLinesPane, outputsPane);
+
         if(contextMenu == null) {
             contextMenu = new ContextMenu();
             MenuItem menuItem = new MenuItem("Save as Image...");
@@ -407,8 +447,6 @@ public class TransactionDiagram extends GridPane {
 
     private Pane getInputsLabels(List<Map<BlockTransactionHashIndex, WalletNode>> displayedUtxoSets) {
         VBox inputsBox = new VBox();
-        inputsBox.setMaxWidth(isExpanded() ? 300 : 150);
-        inputsBox.setPrefWidth(isExpanded() ? 230 : 150);
         inputsBox.setPadding(new Insets(0, 10, 0, 10));
         inputsBox.minHeightProperty().bind(minHeightProperty());
         inputsBox.setAlignment(Pos.BASELINE_RIGHT);
@@ -640,7 +678,8 @@ public class TransactionDiagram extends GridPane {
 
         double width = 140.0;
         long sum = walletTx.getTotal();
-        List<Long> values = walletTx.getTransaction().getOutputs().stream().filter(txo -> txo.getScript().getToAddress() != null).map(TransactionOutput::getValue).collect(Collectors.toList());
+        List<Long> values = walletTx.getOutputs().stream().filter(output -> !(output instanceof WalletTransaction.NonAddressOutput))
+                .map(output -> output.getTransactionOutput().getValue()).collect(Collectors.toList());
         values.add(walletTx.getFee());
         int numOutputs = displayedPayments.size() + walletTx.getChangeMap().size() + 1;
         for(int i = 1; i <= numOutputs; i++) {
@@ -676,8 +715,6 @@ public class TransactionDiagram extends GridPane {
 
     private Pane getOutputsLabels(List<Payment> displayedPayments) {
         VBox outputsBox = new VBox();
-        outputsBox.setMaxWidth(isExpanded() ? 350 : 150);
-        outputsBox.setPrefWidth(isExpanded() ? 230 : 150);
         outputsBox.setPadding(new Insets(0, 20, 0, 10));
         outputsBox.setAlignment(Pos.BASELINE_LEFT);
         outputsBox.getChildren().add(createSpacer());
@@ -686,15 +723,16 @@ public class TransactionDiagram extends GridPane {
         for(Payment payment : displayedPayments) {
             Glyph outputGlyph = GlyphUtils.getOutputGlyph(walletTx, payment);
             boolean labelledPayment = outputGlyph.getStyleClass().stream().anyMatch(style -> List.of("premix-icon", "badbank-icon", "whirlpoolfee-icon", "anchor-icon").contains(style)) || payment instanceof AdditionalPayment || payment.getLabel() != null;
-            Label recipientLabel = new Label(payment.getLabel() == null || payment.getType() == Payment.Type.FAKE_MIX || payment.getType() == Payment.Type.MIX ? payment.getAddress().toString().substring(0, 8) + "..." : payment.getLabel(), outputGlyph);
+            Label recipientLabel = new Label(payment.getLabel() == null || payment.getType() == Payment.Type.FAKE_MIX || payment.getType() == Payment.Type.MIX ? payment.toString().substring(0, 8) + "..." : payment.getLabel(), outputGlyph);
             recipientLabel.getStyleClass().add("output-label");
             recipientLabel.getStyleClass().add(labelledPayment ? "payment-label" : "recipient-label");
             Wallet toWallet = walletTx.getToWallet(AppServices.get().getOpenWallets().keySet(), payment);
             WalletNode toNode = walletTx.getWallet() != null && !walletTx.getWallet().isBip47() ? walletTx.getAddressNodeMap().get(payment.getAddress()) : null;
             Wallet toBip47Wallet = getBip47SendWallet(payment);
+            DnsPayment dnsPayment = DnsPaymentCache.getDnsPayment(payment);
             Tooltip recipientTooltip = new Tooltip((toWallet == null ? (toNode != null ? "Consolidate " : "Pay ") : "Receive ")
                     + getSatsValue(payment.getAmount()) + " sats to "
-                    + (payment instanceof AdditionalPayment ? (isExpanded() ? "\n" : "(click to expand)\n") + payment : (toWallet == null ? (payment.getLabel() == null ? (toNode != null ? toNode : (toBip47Wallet == null ? "external address" : toBip47Wallet.getDisplayName())) : payment.getLabel()) : toWallet.getFullDisplayName()) + "\n" + payment.getAddress().toString())
+                    + (payment instanceof AdditionalPayment ? (isExpanded() ? "\n" : "(click to expand)\n") + payment : (toWallet == null ? (dnsPayment == null ? (payment.getLabel() == null ? (toNode != null ? toNode : (toBip47Wallet == null ? "external address" : toBip47Wallet.getDisplayName())) : payment.getLabel()) : dnsPayment.toString()) : toWallet.getFullDisplayName()) + "\n" + payment.getDisplayAddress())
                     + (walletTx.isDuplicateAddress(payment) ? " (Duplicate)" : ""));
             recipientTooltip.getStyleClass().add("recipient-label");
             recipientTooltip.setShowDelay(new Duration(TOOLTIP_SHOW_DELAY));
@@ -719,9 +757,13 @@ public class TransactionDiagram extends GridPane {
                 paymentBox.getChildren().addAll(region, amountLabel);
             }
 
-            Wallet bip47Wallet = toWallet != null && toWallet.isBip47() ? toWallet : (toBip47Wallet != null && toBip47Wallet.isBip47() ? toBip47Wallet : null);
-            PaymentCode paymentCode = bip47Wallet == null ? null : bip47Wallet.getKeystores().getFirst().getExternalPaymentCode();
-            outputNodes.add(new OutputNode(paymentBox, payment.getAddress(), payment.getAmount(), paymentCode));
+            if(payment instanceof SilentPayment silentPayment) {
+                outputNodes.add(new OutputNode(paymentBox, silentPayment.isAddressComputed() ? silentPayment.getAddress() : null, payment.getAmount(), null, silentPayment.getSilentPaymentAddress()));
+            } else {
+                Wallet bip47Wallet = toWallet != null && toWallet.isBip47() ? toWallet : (toBip47Wallet != null && toBip47Wallet.isBip47() ? toBip47Wallet : null);
+                PaymentCode paymentCode = bip47Wallet == null ? null : bip47Wallet.getKeystores().getFirst().getExternalPaymentCode();
+                outputNodes.add(new OutputNode(paymentBox, payment.getAddress(), payment.getAmount(), paymentCode, null));
+            }
         }
 
         Set<Integer> seenIndexes = new HashSet<>();
@@ -785,7 +827,7 @@ public class TransactionDiagram extends GridPane {
             outputsBox.getChildren().add(outputNode.outputLabel);
             outputsBox.getChildren().add(createSpacer());
 
-            ContextMenu contextMenu = new LabelContextMenu(outputNode.address, outputNode.amount, outputNode.paymentCode);
+            ContextMenu contextMenu = new LabelContextMenu(outputNode.address, outputNode.amount, outputNode.paymentCode, outputNode.silentPaymentAddress);
             if(!outputNode.outputLabel.getChildren().isEmpty() && outputNode.outputLabel.getChildren().get(0) instanceof Label outputLabelControl) {
                 outputLabelControl.setContextMenu(contextMenu);
             }
@@ -960,8 +1002,11 @@ public class TransactionDiagram extends GridPane {
     }
 
     private int getOutputIndex(Address address, long amount, Collection<Integer> seenIndexes) {
-        List<TransactionOutput> addressOutputs = walletTx.getTransaction().getOutputs().stream().filter(txOutput -> txOutput.getScript().getToAddress() != null).collect(Collectors.toList());
-        TransactionOutput output = addressOutputs.stream().filter(txOutput -> address.equals(txOutput.getScript().getToAddress()) && txOutput.getValue() == amount && !seenIndexes.contains(txOutput.getIndex())).findFirst().orElseThrow();
+        List<TransactionOutput> addressOutputs = walletTx.getOutputs().stream().filter(output -> !(output instanceof WalletTransaction.NonAddressOutput))
+                .map(WalletTransaction.Output::getTransactionOutput).collect(Collectors.toList());
+        TransactionOutput output = addressOutputs.stream()
+                .filter(txOutput -> address.equals(txOutput.getScript().getToAddress()) && txOutput.getValue() == amount && !seenIndexes.contains(txOutput.getIndex()))
+                .findFirst().orElseThrow();
         return addressOutputs.indexOf(output);
     }
 
@@ -1111,7 +1156,7 @@ public class TransactionDiagram extends GridPane {
         }
 
         public String toString() {
-            return additionalPayments.stream().map(payment -> payment.getAddress().toString()).collect(Collectors.joining("\n"));
+            return additionalPayments.stream().map(Payment::toString).collect(Collectors.joining("\n"));
         }
     }
 
@@ -1120,25 +1165,27 @@ public class TransactionDiagram extends GridPane {
         public Address address;
         public long amount;
         public PaymentCode paymentCode;
+        public SilentPaymentAddress silentPaymentAddress;
 
         public OutputNode(Pane outputLabel, Address address, long amount) {
-            this(outputLabel, address, amount, null);
+            this(outputLabel, address, amount, null, null);
         }
 
-        public OutputNode(Pane outputLabel, Address address, long amount, PaymentCode paymentCode) {
+        public OutputNode(Pane outputLabel, Address address, long amount, PaymentCode paymentCode, SilentPaymentAddress silentPaymentAddress) {
             this.outputLabel = outputLabel;
             this.address = address;
             this.amount = amount;
             this.paymentCode = paymentCode;
+            this.silentPaymentAddress = silentPaymentAddress;
         }
     }
 
     private class LabelContextMenu extends ContextMenu {
         public LabelContextMenu(Address address, long value) {
-            this(address, value, null);
+            this(address, value, null, null);
         }
 
-        public LabelContextMenu(Address address, long value, PaymentCode paymentCode) {
+        public LabelContextMenu(Address address, long value, PaymentCode paymentCode, SilentPaymentAddress silentPaymentAddress) {
             if(address != null) {
                 MenuItem copyAddress = new MenuItem("Copy Address");
                 copyAddress.setOnAction(event -> {
@@ -1186,6 +1233,17 @@ public class TransactionDiagram extends GridPane {
                 });
                 getItems().add(copyPaymentCode);
             }
+
+            if(silentPaymentAddress != null) {
+                MenuItem copySilentPaymentAddress = new MenuItem("Copy Silent Payment Address");
+                copySilentPaymentAddress.setOnAction(AE -> {
+                    hide();
+                    ClipboardContent content = new ClipboardContent();
+                    content.putString(silentPaymentAddress.toString());
+                    Clipboard.getSystemClipboard().setContent(content);
+                });
+                getItems().add(copySilentPaymentAddress);
+            }
         }
     }
 }

src/main/java/com/sparrowwallet/sparrow/control/TransactionDiagramLabel.java

@@ -206,7 +206,7 @@ public class TransactionDiagramLabel extends HBox {
         WalletNode toNode = walletTx.getWallet() != null && !walletTx.getWallet().isBip47() ? walletTx.getAddressNodeMap().get(payment.getAddress()) : null;
 
         Glyph glyph = GlyphUtils.getOutputGlyph(transactionDiagram.getWalletTransaction(), payment);
-        String text = (toWallet == null ? (toNode != null ? "Consolidate " : "Pay ") : "Receive ") + transactionDiagram.getSatsValue(payment.getAmount()) + " sats to " + payment.getAddress().toString();
+        String text = (toWallet == null ? (toNode != null ? "Consolidate " : "Pay ") : "Receive ") + transactionDiagram.getSatsValue(payment.getAmount()) + " sats to " + payment;
 
         return getOutputLabel(glyph, text);
     }
@@ -240,7 +240,7 @@ public class TransactionDiagramLabel extends HBox {
         icon.setGraphic(glyph);
 
         CopyableLabel label = new CopyableLabel();
-        label.setFont(Font.font("Roboto Mono Italic", 13));
+        label.setFont(Font.font("Fragment Mono Italic", 13));
         label.setText(text);
 
         HBox output = new HBox(5);

src/main/java/com/sparrowwallet/sparrow/control/WebcamPixelFormat.java

@@ -6,8 +6,8 @@ public enum WebcamPixelFormat {
     //Only V4L2 formats defined in linux/videodev2.h are required here, declared in order of priority for supported formats
     PIX_FMT_RGB24("RGB3", true),
     PIX_FMT_YUYV("YUYV", true),
-    PIX_FMT_MJPG("MJPG", true),
-    PIX_FMT_NV12("NV12", false);
+    PIX_FMT_NV12("NV12", true),
+    PIX_FMT_MJPG("MJPG", true);
 
     private final String name;
     private final boolean supported;
@@ -25,6 +25,14 @@ public enum WebcamPixelFormat {
         return supported;
     }
 
+    public int getFourCC() {
+        char a = name.charAt(0);
+        char b = name.charAt(1);
+        char c = name.charAt(2);
+        char d = name.charAt(3);
+        return ((int) a) | ((int) b << 8) | ((int) c << 16) | ((int) d << 24);
+    }
+
     public String toString() {
         return name;
     }

src/main/java/com/sparrowwallet/sparrow/control/WebcamService.java

@@ -7,6 +7,7 @@ import com.google.zxing.qrcode.QRCodeReader;
 import com.sparrowwallet.bokmakierie.Bokmakierie;
 import com.sparrowwallet.drongo.OsType;
 import com.sparrowwallet.sparrow.io.Config;
+import com.sparrowwallet.sparrow.io.ZBar;
 import javafx.beans.property.BooleanProperty;
 import javafx.beans.property.ObjectProperty;
 import javafx.beans.property.SimpleBooleanProperty;
@@ -15,7 +16,6 @@ import javafx.concurrent.ScheduledService;
 import javafx.concurrent.Task;
 import javafx.embed.swing.SwingFXUtils;
 import javafx.scene.image.Image;
-import net.sourceforge.zbar.ZBar;
 import org.openpnp.capture.*;
 import org.openpnp.capture.library.OpenpnpCaptureLibrary;
 import org.slf4j.Logger;
@@ -27,6 +27,9 @@ import java.awt.image.BufferedImage;
 import java.awt.image.WritableRaster;
 import java.util.*;
 import java.util.List;
+import java.util.concurrent.Semaphore;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.function.Function;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
@@ -34,13 +37,18 @@ import java.util.stream.Stream;
 public class WebcamService extends ScheduledService<Image> {
     private static final Logger log = LoggerFactory.getLogger(WebcamService.class);
 
+    private final Semaphore taskSemaphore = new Semaphore(1);
+    private final AtomicBoolean cancelRequested = new AtomicBoolean(false);
+    private final AtomicBoolean captureClosed = new AtomicBoolean(false);
+
     private List<CaptureDevice> devices;
+    private List<CaptureDevice> availableDevices;
     private Set<WebcamResolution> resolutions;
 
     private WebcamResolution resolution;
     private CaptureDevice device;
     private final BooleanProperty opening = new SimpleBooleanProperty(false);
-    private final BooleanProperty closed = new SimpleBooleanProperty(false);
+    private final BooleanProperty opened = new SimpleBooleanProperty(false);
 
     private final ObjectProperty<Result> resultProperty = new SimpleObjectProperty<>(null);
 
@@ -105,26 +113,44 @@ public class WebcamService extends ScheduledService<Image> {
         return new Task<>() {
             @Override
             protected Image call() throws Exception {
+                if(cancelRequested.get() || isCancelled() || captureClosed.get()) {
+                    return null;
+                }
+
+                if(!taskSemaphore.tryAcquire()) {
+                    log.warn("Skipped execution of webcam capture task, another task is running");
+                    return null;
+                }
+
                 try {
-                    if(stream == null) {
+                    if(devices == null) {
                         devices = capture.getDevices();
+                        availableDevices = new ArrayList<>(devices);
 
                         if(devices.isEmpty()) {
                             throw new UnsupportedOperationException("No cameras available");
                         }
+                    }
 
-                        CaptureDevice selectedDevice = devices.stream().filter(d -> !d.getFormats().isEmpty()).findFirst().orElse(devices.getFirst());
+                    while(stream == null && !availableDevices.isEmpty()) {
+                        CaptureDevice selectedDevice = availableDevices.stream().filter(d -> !d.getFormats().isEmpty()).findFirst().orElse(availableDevices.getFirst());
 
                         if(device != null) {
-                            for(CaptureDevice webcam : devices) {
-                                if(webcam.getName().equals(device.getName())) {
+                            for(CaptureDevice webcam : availableDevices) {
+                                if(webcam.equals(device)) {
                                     selectedDevice = webcam;
+                                    break;
                                 }
                             }
                         } else if(Config.get().getWebcamDevice() != null) {
-                            for(CaptureDevice webcam : devices) {
+                            for(CaptureDevice webcam : availableDevices) {
+                                if(webcam.getUniqueId().equals(Config.get().getWebcamDeviceId())) {
+                                    selectedDevice = webcam;
+                                    break;
+                                }
                                 if(webcam.getName().equals(Config.get().getWebcamDevice())) {
                                     selectedDevice = webcam;
+                                    break;
                                 }
                             }
                         }
@@ -163,22 +189,35 @@ public class WebcamService extends ScheduledService<Image> {
                             }
                         }
 
+                        //On Linux, formats not defined in WebcamPixelFormat are unsupported
+                        if(OsType.getCurrent() == OsType.UNIX && WebcamPixelFormat.fromFourCC(format.getFormatInfo().fourcc) == null) {
+                            log.warn("Unsupported camera pixel format " + WebcamPixelFormat.fourCCToString(format.getFormatInfo().fourcc));
+                        }
+
                         if(log.isDebugEnabled()) {
-                            log.debug("Opening capture stream  on " + device + " with format " + format.getFormatInfo().width + "x" + format.getFormatInfo().height + " (" + WebcamPixelFormat.fourCCToString(format.getFormatInfo().fourcc) + ")");
+                            log.debug("Opening capture stream on " + device + " with format " + format.getFormatInfo().width + "x" + format.getFormatInfo().height + " (" + WebcamPixelFormat.fourCCToString(format.getFormatInfo().fourcc) + ")");
                         }
 
                         opening.set(true);
                         stream = device.openStream(format);
                         opening.set(false);
-                        closed.set(false);
 
                         try {
                             zoomLimits = stream.getPropertyLimits(CaptureProperty.Zoom);
                         } catch(Throwable e) {
                             log.debug("Error getting zoom limits on " + device + ", assuming no zoom function");
                         }
+
+                        if(stream == null) {
+                            availableDevices.remove(device);
+                        }
                     }
 
+                    if(stream == null) {
+                        throw new UnsupportedOperationException("No usable cameras available, tried " + devices);
+                    }
+
+                    opened.set(true);
                     BufferedImage originalImage = stream.capture();
                     CroppedDimension cropped = getCroppedDimension(originalImage);
                     BufferedImage croppedImage = originalImage.getSubimage(cropped.x, cropped.y, cropped.length, cropped.length);
@@ -195,6 +234,7 @@ public class WebcamService extends ScheduledService<Image> {
                     return image;
                 } finally {
                     opening.set(false);
+                    taskSemaphore.release();
                 }
             }
         };
@@ -204,21 +244,38 @@ public class WebcamService extends ScheduledService<Image> {
     public void reset() {
         stream = null;
         zoomLimits = null;
+        cancelRequested.set(false);
         super.reset();
     }
 
     @Override
     public boolean cancel() {
-        if(stream != null) {
-            stream.close();
-            closed.set(true);
+        cancelRequested.set(true);
+        boolean cancelled = super.cancel();
+
+        try {
+            if(taskSemaphore.tryAcquire(1, TimeUnit.SECONDS)) {
+                taskSemaphore.release();
+            } else {
+                log.error("Timed out waiting for task semaphore to be available to cancel, cancelling anyway");
+            }
+        } catch(InterruptedException e) {
+            log.error("Interrupted while waiting for task semaphore to be available to cancel, cancelling anyway");
         }
 
-        return super.cancel();
+        if(stream != null) {
+            stream.close();
+            opened.set(false);
+        }
+
+        return cancelled;
     }
 
-    public void close() {
-        capture.close();
+    public synchronized void close() {
+        if(!captureClosed.get()) {
+            captureClosed.set(true);
+            capture.close();
+        }
     }
 
     public PropertyLimits getZoomLimits() {
@@ -262,9 +319,6 @@ public class WebcamService extends ScheduledService<Image> {
     }
 
     private Result readQR(BufferedImage bufferedImage) {
-        LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
-        BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
-
         try {
             com.sparrowwallet.bokmakierie.Result result = bokmakierie.scan(bufferedImage);
             if(result != null) {
@@ -282,6 +336,8 @@ public class WebcamService extends ScheduledService<Image> {
         }
 
         try {
+            LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);
+            BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
             return qrReader.decode(bitmap, Map.of(DecodeHintType.TRY_HARDER, Boolean.TRUE));
         } catch(ReaderException e) {
             // fall thru, it means there is no QR code in image
@@ -336,6 +392,10 @@ public class WebcamService extends ScheduledService<Image> {
         return devices;
     }
 
+    public List<CaptureDevice> getAvailableDevices() {
+        return availableDevices;
+    }
+
     public Set<WebcamResolution> getResolutions() {
         return resolutions;
     }
@@ -376,8 +436,12 @@ public class WebcamService extends ScheduledService<Image> {
         return opening;
     }
 
-    public BooleanProperty closedProperty() {
-        return closed;
+    public BooleanProperty openedProperty() {
+        return opened;
+    }
+
+    public boolean getCancelRequested() {
+        return cancelRequested.get();
     }
 
     public static <T extends Enum<T>> T getNearestEnum(T target) {
@@ -385,10 +449,27 @@ public class WebcamService extends ScheduledService<Image> {
     }
 
     public static <T extends Enum<T>> T getNearestEnum(T target, T[] values) {
-        int ordinal = target.ordinal();
-        return Stream.concat(ordinal > 0 ? Stream.of(values[ordinal - 1]) : Stream.empty(), ordinal < values.length - 1 ? Stream.of(values[ordinal + 1]) : Stream.empty())
-                .findFirst()
-                .orElse(null);
+        if(values == null || values.length == 0) {
+            return null;
+        }
+
+        int targetOrdinal = target.ordinal();
+        if(values.length == 1) {
+            return values[0];
+        }
+
+        for(int i = 0; i < values.length; i++) {
+            if(targetOrdinal < values[i].ordinal()) {
+                if(i == 0) {
+                    return values[0];
+                }
+                int diffToPrev = Math.abs(targetOrdinal - values[i - 1].ordinal());
+                int diffToNext = Math.abs(targetOrdinal - values[i].ordinal());
+                return diffToPrev <= diffToNext ? values[i - 1] : values[i];
+            }
+        }
+
+        return values[values.length - 1];
     }
 
     private static class CroppedDimension {

src/main/java/com/sparrowwallet/sparrow/control/WebcamView.java

@@ -61,7 +61,7 @@ public class WebcamView {
         });
 
         service.valueProperty().addListener((observable, oldValue, newValue) -> {
-            if(newValue != null) {
+            if(newValue != null && !service.getCancelRequested()) {
                 imageProperty.set(newValue);
             }
         });

src/main/java/com/sparrowwallet/sparrow/event/BlockSummaryEvent.java

@@ -6,12 +6,18 @@ import java.util.Map;
 
 public class BlockSummaryEvent {
     private final Map<Integer, BlockSummary> blockSummaryMap;
+    private final Double nextBlockMedianFeeRate;
 
-    public BlockSummaryEvent(Map<Integer, BlockSummary> blockSummaryMap) {
+    public BlockSummaryEvent(Map<Integer, BlockSummary> blockSummaryMap, Double nextBlockMedianFeeRate) {
         this.blockSummaryMap = blockSummaryMap;
+        this.nextBlockMedianFeeRate = nextBlockMedianFeeRate;
     }
 
     public Map<Integer, BlockSummary> getBlockSummaryMap() {
         return blockSummaryMap;
     }
+
+    public Double getNextBlockMedianFeeRate() {
+        return nextBlockMedianFeeRate;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/event/ConnectionEvent.java

@@ -1,6 +1,7 @@
 package com.sparrowwallet.sparrow.event;
 
 import com.sparrowwallet.drongo.protocol.BlockHeader;
+import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.net.MempoolRateSize;
 
 import java.util.List;
@@ -13,6 +14,7 @@ public class ConnectionEvent extends FeeRatesUpdatedEvent {
     private final int blockHeight;
     private final BlockHeader blockHeader;
     private final Double minimumRelayFeeRate;
+    private final Double previousMinimumRelayFeeRate;
 
     public ConnectionEvent(List<String> serverVersion, String serverBanner, int blockHeight, BlockHeader blockHeader, Map<Integer, Double> targetBlockFeeRates, Set<MempoolRateSize> mempoolRateSizes, Double minimumRelayFeeRate) {
         super(targetBlockFeeRates, mempoolRateSizes);
@@ -21,6 +23,7 @@ public class ConnectionEvent extends FeeRatesUpdatedEvent {
         this.blockHeight = blockHeight;
         this.blockHeader = blockHeader;
         this.minimumRelayFeeRate = minimumRelayFeeRate;
+        this.previousMinimumRelayFeeRate = AppServices.getMinimumRelayFeeRate();
     }
 
     public List<String> getServerVersion() {
@@ -42,4 +45,8 @@ public class ConnectionEvent extends FeeRatesUpdatedEvent {
     public Double getMinimumRelayFeeRate() {
         return minimumRelayFeeRate;
     }
+
+    public Double getPreviousMinimumRelayFeeRate() {
+        return previousMinimumRelayFeeRate;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/event/FeeRatesUpdatedEvent.java

@@ -7,13 +7,23 @@ import java.util.Set;
 
 public class FeeRatesUpdatedEvent extends MempoolRateSizesUpdatedEvent {
     private final Map<Integer, Double> targetBlockFeeRates;
+    private final Double nextBlockMedianFeeRate;
 
     public FeeRatesUpdatedEvent(Map<Integer, Double> targetBlockFeeRates, Set<MempoolRateSize> mempoolRateSizes) {
+        this(targetBlockFeeRates, mempoolRateSizes, null);
+    }
+
+    public FeeRatesUpdatedEvent(Map<Integer, Double> targetBlockFeeRates, Set<MempoolRateSize> mempoolRateSizes, Double nextBlockMedianFeeRate) {
         super(mempoolRateSizes);
         this.targetBlockFeeRates = targetBlockFeeRates;
+        this.nextBlockMedianFeeRate = nextBlockMedianFeeRate;
     }
 
     public Map<Integer, Double> getTargetBlockFeeRates() {
         return targetBlockFeeRates;
     }
+
+    public Double getNextBlockMedianFeeRate() {
+        return nextBlockMedianFeeRate;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/event/RequestSendToManyEvent.java

@@ -0,0 +1,17 @@
+package com.sparrowwallet.sparrow.event;
+
+import com.sparrowwallet.drongo.wallet.Payment;
+
+import java.util.List;
+
+public class RequestSendToManyEvent {
+    private final List<Payment> payments;
+
+    public RequestSendToManyEvent(List<Payment> payments) {
+        this.payments = payments;
+    }
+
+    public List<Payment> getPayments() {
+        return payments;
+    }
+}

src/main/java/com/sparrowwallet/sparrow/event/SpendUtxoEvent.java

@@ -17,12 +17,13 @@ public class SpendUtxoEvent {
     private final boolean requireAllUtxos;
     private final BlockTransaction replacedTransaction;
     private final PaymentCode paymentCode;
+    private final boolean allowPaymentChanges;
 
     public SpendUtxoEvent(Wallet wallet, List<BlockTransactionHashIndex> utxos) {
-        this(wallet, utxos, null, null, null, false, null);
+        this(wallet, utxos, null, null, null, false, null, true);
     }
 
-    public SpendUtxoEvent(Wallet wallet, List<BlockTransactionHashIndex> utxos, List<Payment> payments, List<byte[]> opReturns, Long fee, boolean requireAllUtxos, BlockTransaction replacedTransaction) {
+    public SpendUtxoEvent(Wallet wallet, List<BlockTransactionHashIndex> utxos, List<Payment> payments, List<byte[]> opReturns, Long fee, boolean requireAllUtxos, BlockTransaction replacedTransaction, boolean allowPaymentChanges) {
         this.wallet = wallet;
         this.utxos = utxos;
         this.payments = payments;
@@ -31,6 +32,7 @@ public class SpendUtxoEvent {
         this.requireAllUtxos = requireAllUtxos;
         this.replacedTransaction = replacedTransaction;
         this.paymentCode = null;
+        this.allowPaymentChanges = allowPaymentChanges;
     }
 
     public SpendUtxoEvent(Wallet wallet, List<Payment> payments, List<byte[]> opReturns, PaymentCode paymentCode) {
@@ -42,6 +44,7 @@ public class SpendUtxoEvent {
         this.requireAllUtxos = false;
         this.replacedTransaction = null;
         this.paymentCode = paymentCode;
+        this.allowPaymentChanges = false;
     }
 
     public Wallet getWallet() {
@@ -75,4 +78,8 @@ public class SpendUtxoEvent {
     public PaymentCode getPaymentCode() {
         return paymentCode;
     }
+
+    public boolean allowPaymentChanges() {
+        return allowPaymentChanges;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/event/TransactionOutputsChangedEvent.java

@@ -0,0 +1,9 @@
+package com.sparrowwallet.sparrow.event;
+
+import com.sparrowwallet.drongo.protocol.Transaction;
+
+public class TransactionOutputsChangedEvent extends TransactionChangedEvent {
+    public TransactionOutputsChangedEvent(Transaction transaction) {
+        super(transaction);
+    }
+}

src/main/java/com/sparrowwallet/sparrow/event/WalletNodeHistoryChangedEvent.java

@@ -14,9 +14,16 @@ import java.util.List;
  */
 public class WalletNodeHistoryChangedEvent {
     private final String scriptHash;
+    private final String status;
 
     public WalletNodeHistoryChangedEvent(String scriptHash) {
         this.scriptHash = scriptHash;
+        this.status = null;
+    }
+
+    public WalletNodeHistoryChangedEvent(String scriptHash, String status) {
+        this.scriptHash = scriptHash;
+        this.status = status;
     }
 
     public WalletNode getWalletNode(Wallet wallet) {
@@ -70,4 +77,8 @@ public class WalletNodeHistoryChangedEvent {
     public String getScriptHash() {
         return scriptHash;
     }
+
+    public String getStatus() {
+        return status;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/glyphfont/GlyphUtils.java

@@ -213,6 +213,13 @@ public class GlyphUtils {
         return busyGlyph;
     }
 
+    public static Glyph getUpArrowGlyph() {
+        Glyph upGlyph = new Glyph(FontAwesome5.FONT_NAME, FontAwesome5.Glyph.ARROW_UP);
+        upGlyph.getStyleClass().add("arrow-up");
+        upGlyph.setFontSize(12);
+        return upGlyph;
+    }
+
     public static Glyph getDownArrowGlyph() {
         Glyph downGlyph = new Glyph(FontAwesome5.FONT_NAME, FontAwesome5.Glyph.ARROW_DOWN);
         downGlyph.getStyleClass().add("arrow-down");

src/main/java/com/sparrowwallet/sparrow/io/Bip129.java

@@ -192,7 +192,7 @@ public class Bip129 implements KeystoreFileExport, KeystoreFileImport, WalletExp
     public void exportWallet(Wallet wallet, OutputStream outputStream, String password) throws ExportException {
         try {
             String record = "BSMS 1.0\n" +
-                    OutputDescriptor.getOutputDescriptor(wallet) +
+                    OutputDescriptor.getOutputDescriptor(wallet, KeyPurpose.DEFAULT_PURPOSES, null) +
                     "\n/0/*,/1/*\n" +
                     wallet.getNode(KeyPurpose.RECEIVE).getChildren().iterator().next().getAddress();
             outputStream.write(record.getBytes(StandardCharsets.UTF_8));

src/main/java/com/sparrowwallet/sparrow/io/BlueWalletMultisig.java

@@ -9,7 +9,7 @@ import java.io.InputStream;
 public class BlueWalletMultisig extends ColdcardMultisig {
     @Override
     public String getName() {
-        return "Blue Wallet Vault Multisig";
+        return "BlueWallet Vault Multisig";
     }
 
     @Override
@@ -21,7 +21,7 @@ public class BlueWalletMultisig extends ColdcardMultisig {
     public Wallet importWallet(InputStream inputStream, String password) throws ImportException {
         Wallet wallet = super.importWallet(inputStream, password);
         for(Keystore keystore : wallet.getKeystores()) {
-            keystore.setLabel(keystore.getLabel().replace("Coldcard", "Blue Wallet"));
+            keystore.setLabel(keystore.getLabel().replace("Coldcard", "BlueWallet"));
             keystore.setWalletModel(WalletModel.BLUE_WALLET);
         }
 
@@ -30,12 +30,12 @@ public class BlueWalletMultisig extends ColdcardMultisig {
 
     @Override
     public String getWalletImportDescription() {
-        return "Import file or QR created by using the Wallet > Export Coordination Setup feature on your Blue Wallet Vault wallet.";
+        return "Import file or QR created by using the Wallet > Export Coordination Setup feature on your BlueWallet Vault wallet.";
     }
 
     @Override
     public String getWalletExportDescription() {
-        return "Export file that can be read by Blue Wallet using the Add Wallet > Vault > Import wallet feature.";
+        return "Export file that can be read by BlueWallet using the Add Wallet > Vault > Import wallet feature.";
     }
 
     @Override

src/main/java/com/sparrowwallet/sparrow/io/Config.java

@@ -2,6 +2,7 @@ package com.sparrowwallet.sparrow.io;
 
 import com.google.gson.*;
 import com.sparrowwallet.drongo.BitcoinUnit;
+import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.Mode;
 import com.sparrowwallet.sparrow.Theme;
@@ -52,6 +53,9 @@ public class Config {
     private boolean showDeprecatedImportExport = false;
     private boolean signBsmsExports = false;
     private boolean preventSleep = false;
+    private Boolean connectToBroadcast;
+    private Boolean connectToResolve;
+    private Boolean suggestSendToMany;
     private List<File> recentWalletFiles;
     private Integer keyDerivationPeriod;
     private long dustAttackThreshold = DUST_ATTACK_THRESHOLD_SATS;
@@ -61,6 +65,7 @@ public class Config {
     private boolean mirrorCapture = true;
     private boolean useZbar = true;
     private String webcamDevice;
+    private String webcamDeviceId;
     private ServerType serverType;
     private Server publicElectrumServer;
     private Server coreServer;
@@ -69,6 +74,7 @@ public class Config {
     private File coreDataDir;
     private String coreAuth;
     private boolean useLegacyCoreWallet;
+    private boolean legacyServer;
     private Server electrumServer;
     private List<Server> recentElectrumServers;
     private File electrumServerCert;
@@ -79,6 +85,7 @@ public class Config {
     private int maxPageSize = DEFAULT_PAGE_SIZE;
     private boolean usePayNym;
     private boolean mempoolFullRbf;
+    private double minRelayFeeRate = Transaction.DEFAULT_MIN_RELAY_FEE;
     private Double appWidth;
     private Double appHeight;
 
@@ -347,6 +354,34 @@ public class Config {
 
     public void setPreventSleep(boolean preventSleep) {
         this.preventSleep = preventSleep;
+        flush();
+    }
+
+    public Boolean getConnectToBroadcast() {
+        return connectToBroadcast;
+    }
+
+    public void setConnectToBroadcast(Boolean connectToBroadcast) {
+        this.connectToBroadcast = connectToBroadcast;
+        flush();
+    }
+
+    public Boolean getConnectToResolve() {
+        return connectToResolve;
+    }
+
+    public void setConnectToResolve(Boolean connectToResolve) {
+        this.connectToResolve = connectToResolve;
+        flush();
+    }
+
+    public Boolean getSuggestSendToMany() {
+        return suggestSendToMany;
+    }
+
+    public void setSuggestSendToMany(Boolean suggestSendToMany) {
+        this.suggestSendToMany = suggestSendToMany;
+        flush();
     }
 
     public List<File> getRecentWalletFiles() {
@@ -415,6 +450,15 @@ public class Config {
         flush();
     }
 
+    public String getWebcamDeviceId() {
+        return webcamDeviceId;
+    }
+
+    public void setWebcamDeviceId(String webcamDeviceId) {
+        this.webcamDeviceId = webcamDeviceId;
+        flush();
+    }
+
     public ServerType getServerType() {
         return serverType;
     }
@@ -549,6 +593,15 @@ public class Config {
         flush();
     }
 
+    public boolean isLegacyServer() {
+        return legacyServer;
+    }
+
+    public void setLegacyServer(boolean legacyServer) {
+        this.legacyServer = legacyServer;
+        flush();
+    }
+
     public Server getElectrumServer() {
         return electrumServer;
     }
@@ -667,6 +720,14 @@ public class Config {
         flush();
     }
 
+    public double getMinRelayFeeRate() {
+        return minRelayFeeRate;
+    }
+
+    public void setMinRelayFeeRate(double minRelayFeeRate) {
+        this.minRelayFeeRate = minRelayFeeRate;
+    }
+
     public Double getAppWidth() {
         return appWidth;
     }

src/main/java/com/sparrowwallet/sparrow/io/Descriptor.java

@@ -126,7 +126,7 @@ public class Descriptor implements WalletImport, WalletExport {
             } else if(line.startsWith("#")) {
                 continue;
             } else {
-                paragraph.append(line);
+                paragraph.append(line.replaceFirst("^.+:", "").trim());
             }
         }
 

src/main/java/com/sparrowwallet/sparrow/io/ElectrumPersonalServer.java

@@ -37,7 +37,8 @@ public class ElectrumPersonalServer implements WalletExport {
         try {
             BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(outputStream, StandardCharsets.UTF_8));
             writer.write("# Electrum Personal Server configuration file fragments\n");
-            writer.write("# Copy the lines below into the relevant sections in your EPS config.ini file\n\n");
+            writer.write("# First close Sparrow and edit your config file in Sparrow home to set \"legacyServer\": true\n");
+            writer.write("# Then copy the lines below into the relevant sections in your EPS config.ini file\n\n");
             writer.write("# Copy into [master-public-keys] section\n");
             Wallet masterWallet = wallet.isMasterWallet() ? wallet : wallet.getMasterWallet();
             writeWalletXpub(masterWallet, writer);

src/main/java/com/sparrowwallet/sparrow/io/Storage.java

@@ -684,7 +684,7 @@ public class Storage {
 
         public static Executor getSingleThreadedExecutor() {
             if(singleThreadedExecutor == null) {
-                BasicThreadFactory factory = new BasicThreadFactory.Builder().namingPattern("LoadWalletService-single").daemon(true).priority(Thread.MIN_PRIORITY).build();
+                BasicThreadFactory factory = BasicThreadFactory.builder().namingPattern("LoadWalletService-single").daemon(true).priority(Thread.MIN_PRIORITY).build();
                 singleThreadedExecutor = Executors.newSingleThreadScheduledExecutor(factory);
             }
 

src/main/java/com/sparrowwallet/sparrow/io/ZBar.java

@@ -1,29 +1,21 @@
-package net.sourceforge.zbar;
+package com.sparrowwallet.sparrow.io;
 
-import com.sparrowwallet.sparrow.net.NativeUtils;
+import io.github.doblon8.jzbar.Config;
+import io.github.doblon8.jzbar.Image;
+import io.github.doblon8.jzbar.ImageScanner;
+import io.github.doblon8.jzbar.SymbolType;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.awt.image.DataBufferByte;
-import java.util.Iterator;
 
 public class ZBar {
     private static final Logger log = LoggerFactory.getLogger(ZBar.class);
 
-    private final static boolean enabled;
-
-    static { // static initializer
-        if(com.sparrowwallet.sparrow.io.Config.get().isUseZbar()) {
-            enabled = loadLibrary();
-        } else {
-            enabled = false;
-        }
-    }
-
     public static boolean isEnabled() {
-        return enabled;
+        return com.sparrowwallet.sparrow.io.Config.get().isUseZbar();
     }
 
     public static Scan scan(BufferedImage bufferedImage) {
@@ -41,19 +33,12 @@ public class ZBar {
                 image.setData(data);
 
                 try(ImageScanner scanner = new ImageScanner()) {
-                    scanner.setConfig(Symbol.NONE, Config.ENABLE, 0);
-                    scanner.setConfig(Symbol.QRCODE, Config.ENABLE, 1);
+                    scanner.setConfig(SymbolType.NONE, Config.ENABLE, 0);
+                    scanner.setConfig(SymbolType.QRCODE, Config.ENABLE, 1);
                     int result = scanner.scanImage(image);
                     if(result != 0) {
-                        try(SymbolSet results = scanner.getResults()) {
-                            Scan scan = null;
-                            for(Iterator<Symbol> iter = results.iterator(); iter.hasNext(); ) {
-                                try(Symbol symbol = iter.next()) {
-                                    scan = new Scan(getRawBytes(symbol.getData()), symbol.getData());
-                                }
-                            }
-                            return scan;
-                        }
+                        String symbolData = image.getFirstSymbol().getData();
+                        return new Scan(getRawBytes(symbolData), symbolData);
                     }
                 }
             }
@@ -97,31 +82,6 @@ public class ZBar {
         return outputData;
     }
 
-    private static boolean loadLibrary() {
-        try {
-            String osName = System.getProperty("os.name");
-            String osArch = System.getProperty("os.arch");
-            if(osName.startsWith("Mac") && osArch.equals("aarch64")) {
-                NativeUtils.loadLibraryFromJar("/native/osx/aarch64/libzbar.dylib");
-            } else if(osName.startsWith("Mac")) {
-                NativeUtils.loadLibraryFromJar("/native/osx/x64/libzbar.dylib");
-            } else if(osName.startsWith("Windows")) {
-                NativeUtils.loadLibraryFromJar("/native/windows/x64/iconv-2.dll");
-                NativeUtils.loadLibraryFromJar("/native/windows/x64/zbar.dll");
-            } else if(osArch.equals("aarch64")) {
-                NativeUtils.loadLibraryFromJar("/native/linux/aarch64/libzbar.so");
-            } else {
-                NativeUtils.loadLibraryFromJar("/native/linux/x64/libzbar.so");
-            }
-
-            return true;
-        } catch(Exception e) {
-            log.warn("Could not load ZBar native libraries, disabling. " + e.getMessage());
-        }
-
-        return false;
-    }
-
     private static byte[] getRawBytes(String str) {
         char[] chars = str.toCharArray();
         byte[] bytes = new byte[chars.length];

src/main/java/com/sparrowwallet/sparrow/io/db/DbPersistence.java

@@ -171,7 +171,7 @@ public class DbPersistence implements Persistence {
 
     private synchronized void createUpdateExecutor(Wallet masterWallet) {
         if(updateExecutor == null) {
-            BasicThreadFactory factory = new BasicThreadFactory.Builder().namingPattern(masterWallet.getFullName() + "-dbupdater").daemon(true).priority(Thread.NORM_PRIORITY).build();
+            BasicThreadFactory factory = BasicThreadFactory.builder().namingPattern(masterWallet.getFullName() + "-dbupdater").daemon(true).priority(Thread.NORM_PRIORITY).build();
             updateExecutor = Executors.newSingleThreadExecutor(factory);
         }
     }

src/main/java/com/sparrowwallet/sparrow/net/ElectrumServer.java

@@ -76,6 +76,10 @@ public class ElectrumServer {
 
     private static final Set<String> sameHeightTxioScriptHashes = ConcurrentHashMap.newKeySet();
 
+    private final static Map<String, Integer> subscribedRecent = new ConcurrentHashMap<>();
+
+    private final static Map<String, String> broadcastRecent = new ConcurrentHashMap<>();
+
     private static ElectrumServerRpc electrumServerRpc = new SimpleElectrumServerRpc();
 
     private static Cormorant cormorant;
@@ -936,6 +940,20 @@ public class ElectrumServer {
         return targetBlocksFeeRatesSats;
     }
 
+    public Double getNextBlockMedianFeeRate() {
+        FeeRatesSource feeRatesSource = Config.get().getFeeRatesSource();
+        feeRatesSource = (feeRatesSource == null ? FeeRatesSource.MEMPOOL_SPACE : feeRatesSource);
+        if(feeRatesSource.supportsNetwork(Network.get())) {
+            try {
+                return feeRatesSource.getNextBlockMedianFeeRate();
+            } catch(Exception e) {
+                return null;
+            }
+        }
+
+        return null;
+    }
+
     public Map<Integer, Double> getDefaultFeeEstimates(List<Integer> targetBlocks) throws ServerException {
         try {
             Map<Integer, Double> targetBlocksFeeRatesBtcKb = electrumServerRpc.getFeeEstimates(getTransport(), targetBlocks);
@@ -1048,6 +1066,11 @@ public class ElectrumServer {
                 List<BlockTransactionHash> recentTransactions = feeRatesSource.getRecentMempoolTransactions();
                 Map<BlockTransactionHash, Transaction> setReferences = new HashMap<>();
                 setReferences.put(recentTransactions.getFirst(), null);
+                if(recentTransactions.size() > 1) {
+                    Random random = new Random();
+                    int halfSize = recentTransactions.size() / 2;
+                    setReferences.put(recentTransactions.get(halfSize == 1 ? 1 : random.nextInt(halfSize) + 1), null);
+                }
                 Map<Sha256Hash, BlockTransaction> transactions = getTransactions(null, setReferences, Collections.emptyMap());
                 return transactions.values().stream().filter(blxTx -> blxTx.getTransaction() != null).toList();
             } catch(Exception e) {
@@ -1232,11 +1255,11 @@ public class ElectrumServer {
         if(!serverVersion.isEmpty()) {
             String server = serverVersion.getFirst().toLowerCase(Locale.ROOT);
             if(server.contains("electrumx")) {
-                return new ServerCapability(true);
+                return new ServerCapability(true, true);
             }
 
             if(server.startsWith("cormorant")) {
-                return new ServerCapability(true, false, true);
+                return new ServerCapability(true, false, true, false);
             }
 
             if(server.startsWith("electrs/")) {
@@ -1248,7 +1271,7 @@ public class ElectrumServer {
                 try {
                     Version version = new Version(electrsVersion);
                     if(version.compareTo(ELECTRS_MIN_BATCHING_VERSION) >= 0) {
-                        return new ServerCapability(true);
+                        return new ServerCapability(true, true);
                     }
                 } catch(Exception e) {
                     //ignore
@@ -1264,7 +1287,7 @@ public class ElectrumServer {
                 try {
                     Version version = new Version(fulcrumVersion);
                     if(version.compareTo(FULCRUM_MIN_BATCHING_VERSION) >= 0) {
-                        return new ServerCapability(true);
+                        return new ServerCapability(true, true);
                     }
                 } catch(Exception e) {
                     //ignore
@@ -1283,15 +1306,19 @@ public class ElectrumServer {
                     Version version = new Version(mempoolElectrsVersion);
                     if(version.compareTo(MEMPOOL_ELECTRS_MIN_BATCHING_VERSION) > 0 ||
                             (version.compareTo(MEMPOOL_ELECTRS_MIN_BATCHING_VERSION) == 0 && (!mempoolElectrsSuffix.contains("dev") || mempoolElectrsSuffix.contains("dev-249848d")))) {
-                        return new ServerCapability(true, 25);
+                        return new ServerCapability(true, 25, false);
                     }
                 } catch(Exception e) {
                     //ignore
                 }
             }
+
+            if(server.startsWith("electrumpersonalserver")) {
+                return new ServerCapability(false, false);
+            }
         }
 
-        return new ServerCapability(false);
+        return new ServerCapability(false, true);
     }
 
     public static class ServerVersionService extends Service<List<String>> {
@@ -1456,8 +1483,9 @@ public class ElectrumServer {
                             if(elapsed > FEE_RATES_PERIOD) {
                                 Map<Integer, Double> blockTargetFeeRates = electrumServer.getFeeEstimates(AppServices.TARGET_BLOCKS_RANGE, false);
                                 Set<MempoolRateSize> mempoolRateSizes = electrumServer.getMempoolRateSizes();
+                                Double nextBlockMedianFeeRate = electrumServer.getNextBlockMedianFeeRate();
                                 feeRatesRetrievedAt = System.currentTimeMillis();
-                                return new FeeRatesUpdatedEvent(blockTargetFeeRates, mempoolRateSizes);
+                                return new FeeRatesUpdatedEvent(blockTargetFeeRates, mempoolRateSizes, nextBlockMedianFeeRate);
                             }
                         } else {
                             closeConnection();
@@ -1583,6 +1611,31 @@ public class ElectrumServer {
             Set<MempoolRateSize> mempoolRateSizes = electrumServer.getMempoolRateSizes();
             EventManager.get().post(new MempoolRateSizesUpdatedEvent(mempoolRateSizes));
         }
+
+        @Subscribe
+        public void walletNodeHistoryChanged(WalletNodeHistoryChangedEvent event) {
+            String status = broadcastRecent.remove(event.getScriptHash());
+            if(status != null && status.equals(event.getStatus())) {
+                Map<String, String> subscribeScriptHashes = new HashMap<>();
+                Random random = new Random();
+                int subscriptions = random.nextInt(2) + 1;
+                for(int i = 0; i < subscriptions; i++) {
+                    byte[] randomScriptHashBytes = new byte[32];
+                    random.nextBytes(randomScriptHashBytes);
+                    String randomScriptHash = Utils.bytesToHex(randomScriptHashBytes);
+                    if(!subscribedScriptHashes.containsKey(randomScriptHash)) {
+                        subscribeScriptHashes.put("m/" + subscribeScriptHashes.size(), randomScriptHash);
+                    }
+                }
+
+                try {
+                    electrumServerRpc.subscribeScriptHashes(transport, null, subscribeScriptHashes);
+                    subscribeScriptHashes.values().forEach(scriptHash -> subscribedRecent.put(scriptHash, AppServices.getCurrentBlockHeight()));
+                } catch(ElectrumServerRpcException e) {
+                    log.debug("Error subscribing to recent mempool transaction outputs", e);
+                }
+            }
+        }
     }
 
     public static class ReadRunnable implements Runnable {
@@ -1935,7 +1988,8 @@ public class ElectrumServer {
                 protected FeeRatesUpdatedEvent call() throws ServerException {
                     ElectrumServer electrumServer = new ElectrumServer();
                     Map<Integer, Double> blockTargetFeeRates = electrumServer.getFeeEstimates(AppServices.TARGET_BLOCKS_RANGE, false);
-                    return new FeeRatesUpdatedEvent(blockTargetFeeRates, null);
+                    Double nextBlockMedianFeeRate = electrumServer.getNextBlockMedianFeeRate();
+                    return new FeeRatesUpdatedEvent(blockTargetFeeRates, null, nextBlockMedianFeeRate);
                 }
             };
         }
@@ -1982,10 +2036,14 @@ public class ElectrumServer {
                     Config config = Config.get();
                     if(!isBlockstorm(totalBlocks) && !AppServices.isUsingProxy() && config.getServer().getProtocol().equals(Protocol.SSL)
                             && (config.getServerType() == ServerType.PUBLIC_ELECTRUM_SERVER || config.getServerType() == ServerType.ELECTRUM_SERVER)) {
-                        subscribeRecent(electrumServer);
+                        subscribeRecent(electrumServer, AppServices.getCurrentBlockHeight() == null ? endHeight : AppServices.getCurrentBlockHeight());
                     }
 
-                    return new BlockSummaryEvent(blockSummaryMap);
+                    Double nextBlockMedianFeeRate = null;
+                    if(!isBlockstorm(totalBlocks)) {
+                        nextBlockMedianFeeRate = electrumServer.getNextBlockMedianFeeRate();
+                    }
+                    return new BlockSummaryEvent(blockSummaryMap, nextBlockMedianFeeRate);
                 }
             };
         }
@@ -1994,43 +2052,72 @@ public class ElectrumServer {
             return Network.get() != Network.MAINNET && totalBlocks > 2;
         }
 
-        private final static Set<String> subscribedRecent = Collections.newSetFromMap(new ConcurrentHashMap<>());
-
-        private void subscribeRecent(ElectrumServer electrumServer) {
-            Set<String> unsubscribeScriptHashes = new HashSet<>(subscribedRecent);
+        private void subscribeRecent(ElectrumServer electrumServer, int currentHeight) {
+            Set<String> unsubscribeScriptHashes = subscribedRecent.entrySet().stream().filter(entry -> entry.getValue() == null || entry.getValue() <= currentHeight - 3)
+                    .map(Map.Entry::getKey).collect(Collectors.toSet());
             unsubscribeScriptHashes.removeIf(subscribedScriptHashes::containsKey);
-            electrumServerRpc.unsubscribeScriptHashes(transport, unsubscribeScriptHashes);
-            subscribedRecent.removeAll(unsubscribeScriptHashes);
+            if(!unsubscribeScriptHashes.isEmpty() && serverCapability.supportsUnsubscribe()) {
+                electrumServerRpc.unsubscribeScriptHashes(transport, unsubscribeScriptHashes);
+            }
+            subscribedRecent.keySet().removeAll(unsubscribeScriptHashes);
+            broadcastRecent.keySet().removeAll(unsubscribeScriptHashes);
 
             Map<String, String> subscribeScriptHashes = new HashMap<>();
             List<BlockTransaction> recentTransactions = electrumServer.getRecentMempoolTransactions();
             for(BlockTransaction blkTx : recentTransactions) {
-                for(int i = 0; i < blkTx.getTransaction().getOutputs().size() && subscribeScriptHashes.size() < 10; i++) {
+                for(int i = 0; i < blkTx.getTransaction().getOutputs().size(); i++) {
                     TransactionOutput txOutput = blkTx.getTransaction().getOutputs().get(i);
                     String scriptHash = getScriptHash(txOutput);
                     if(!subscribedScriptHashes.containsKey(scriptHash)) {
-                        subscribeScriptHashes.put("m/" + i, getScriptHash(txOutput));
+                        subscribeScriptHashes.put("m/" + subscribeScriptHashes.size(), scriptHash);
+                    }
+                    if(Math.random() < 0.1d) {
+                        break;
                     }
                 }
             }
 
             if(!subscribeScriptHashes.isEmpty()) {
+                Random random = new Random();
+                int additionalRandomScriptHashes = random.nextInt(8);
+                for(int i = 0; i < additionalRandomScriptHashes; i++) {
+                    byte[] randomScriptHashBytes = new byte[32];
+                    random.nextBytes(randomScriptHashBytes);
+                    String randomScriptHash = Utils.bytesToHex(randomScriptHashBytes);
+                    if(!subscribedScriptHashes.containsKey(randomScriptHash)) {
+                        subscribeScriptHashes.put("m/" + subscribeScriptHashes.size(), randomScriptHash);
+                    }
+                }
+
                 try {
                     electrumServerRpc.subscribeScriptHashes(transport, null, subscribeScriptHashes);
-                    subscribedRecent.addAll(subscribeScriptHashes.values());
+                    subscribeScriptHashes.values().forEach(scriptHash -> subscribedRecent.put(scriptHash, currentHeight));
                 } catch(ElectrumServerRpcException e) {
                     log.debug("Error subscribing to recent mempool transactions", e);
                 }
             }
 
+            if(!recentTransactions.isEmpty()) {
+                broadcastRecent(electrumServer, recentTransactions);
+            }
+        }
+
+        private void broadcastRecent(ElectrumServer electrumServer, List<BlockTransaction> recentTransactions) {
             ScheduledService<Void> broadcastService = new ScheduledService<>() {
                 @Override
                 protected Task<Void> createTask() {
                     return new Task<>() {
                         @Override
                         protected Void call() throws Exception {
-                            for(BlockTransaction blkTx : recentTransactions) {
-                                electrumServer.broadcastTransaction(blkTx.getTransaction());
+                            if(!recentTransactions.isEmpty()) {
+                                Random random = new Random();
+                                if(random.nextBoolean()) {
+                                    BlockTransaction blkTx = recentTransactions.get(random.nextInt(recentTransactions.size()));
+                                    String scriptHash = getScriptHash(blkTx.getTransaction().getOutputs().getFirst());
+                                    String status = getScriptHashStatus(List.of(new ScriptHashTx(0, blkTx.getHashAsString(), blkTx.getFee())));
+                                    broadcastRecent.put(scriptHash, status);
+                                    electrumServer.broadcastTransaction(blkTx.getTransaction());
+                                }
                             }
                             return null;
                         }

src/main/java/com/sparrowwallet/sparrow/net/ExchangeSource.java

@@ -124,7 +124,7 @@ public enum ExchangeSource {
             return historicalRates;
         }
     },
-    COINGECKO("Coingecko", "No historical rates") {
+    COINGECKO("Coingecko", "Historical rates for the last 365 days") {
         @Override
         public List<Currency> getSupportedCurrencies() {
             return getRates().rates.entrySet().stream().filter(rate -> "fiat".equals(rate.getValue().type) && isValidISO4217Code(rate.getKey().toUpperCase(Locale.ROOT)))
@@ -167,6 +167,11 @@ public enum ExchangeSource {
             long startDate = start.getTime() / 1000;
             long endDate = end.getTime() / 1000;
 
+            Calendar cal = Calendar.getInstance();
+            cal.add(Calendar.YEAR, -1);
+            startDate = Math.max(cal.getTimeInMillis() / 1000, startDate);
+            endDate = Math.max(cal.getTimeInMillis() / 1000, endDate);
+
             String url = "https://api.coingecko.com/api/v3/coins/bitcoin/market_chart/range?vs_currency=" + currency.getCurrencyCode() + "&from=" + startDate + "&to=" + endDate;
 
             if(log.isInfoEnabled()) {

src/main/java/com/sparrowwallet/sparrow/net/FeeRatesSource.java

@@ -34,6 +34,12 @@ public enum FeeRatesSource {
             return getThreeTierFeeRates(this, defaultblockTargetFeeRates, url);
         }
 
+        @Override
+        public Double getNextBlockMedianFeeRate() throws Exception {
+            String url = getApiUrl() + "v1/fees/mempool-blocks";
+            return requestNextBlockMedianFeeRate(this, url);
+        }
+
         @Override
         public BlockSummary getBlockSummary(Sha256Hash blockId) throws Exception {
             String url = getApiUrl() + "v1/block/" + Utils.bytesToHex(blockId.getReversedBytes());
@@ -130,6 +136,10 @@ public enum FeeRatesSource {
 
     public abstract Map<Integer, Double> getBlockTargetFeeRates(Map<Integer, Double> defaultblockTargetFeeRates);
 
+    public Double getNextBlockMedianFeeRate() throws Exception {
+        throw new UnsupportedOperationException(name + " does not support retrieving the next block median fee rate");
+    }
+
     public BlockSummary getBlockSummary(Sha256Hash blockId) throws Exception {
         throw new UnsupportedOperationException(name + " does not support block summaries");
     }
@@ -199,6 +209,30 @@ public enum FeeRatesSource {
         return httpClientService.requestJson(url, ThreeTierRates.class, null);
     }
 
+    protected static Double requestNextBlockMedianFeeRate(FeeRatesSource feeRatesSource, String url) throws Exception {
+        if(log.isInfoEnabled()) {
+            log.info("Requesting next block median fee rate from " + url);
+        }
+
+        HttpClientService httpClientService = AppServices.getHttpClientService();
+        try {
+            MempoolBlock[] mempoolBlocks = feeRatesSource.requestMempoolBlocks(url, httpClientService);
+            return mempoolBlocks.length > 0 ? mempoolBlocks[0].medianFee : null;
+        } catch (Exception e) {
+            if(log.isDebugEnabled()) {
+                log.warn("Error retrieving next block median fee rate from " + url, e);
+            } else {
+                log.warn("Error retrieving next block median fee rate from " + url + " (" + e.getMessage() + ")");
+            }
+
+            throw e;
+        }
+    }
+
+    protected MempoolBlock[] requestMempoolBlocks(String url, HttpClientService httpClientService) throws Exception {
+        return httpClientService.requestJson(url, MempoolBlock[].class, null);
+    }
+
     protected static BlockSummary requestBlockSummary(FeeRatesSource feeRatesSource, String url) throws Exception {
         if(log.isInfoEnabled()) {
             log.info("Requesting block summary from " + url);
@@ -309,6 +343,8 @@ public enum FeeRatesSource {
         }
     }
 
+    protected record MempoolBlock(Integer nTx, Double medianFee) {}
+
     protected record MempoolBlockSummary(String id, Integer height, Long timestamp, Integer tx_count, Integer weight, MempoolBlockSummaryExtras extras) {
         public Double getMedianFee() {
             return extras == null ? null : extras.medianFee();

src/main/java/com/sparrowwallet/sparrow/net/NativeUtils.java

@@ -1,11 +1,17 @@
 package com.sparrowwallet.sparrow.net;
 
+import com.sparrowwallet.drongo.OsType;
+
 import java.io.*;
 import java.nio.file.FileSystemNotFoundException;
 import java.nio.file.FileSystems;
 import java.nio.file.Files;
 import java.nio.file.ProviderNotFoundException;
 import java.nio.file.StandardCopyOption;
+import java.nio.file.attribute.PosixFilePermission;
+import java.nio.file.attribute.PosixFilePermissions;
+import java.util.EnumSet;
+import java.util.Set;
 
 /**
  * A simple library class which helps with loading dynamic libraries stored in the
@@ -111,9 +117,33 @@ public class NativeUtils {
         String tempDir = System.getProperty("java.io.tmpdir");
         File generatedDir = new File(tempDir, prefix + System.nanoTime());
 
-        if (!generatedDir.mkdir())
+        if(!createOwnerOnlyDirectory(generatedDir)) {
             throw new IOException("Failed to create temp directory " + generatedDir.getName());
+        }
 
         return generatedDir;
     }
+
+    public static boolean createOwnerOnlyDirectory(File directory) throws IOException {
+        try {
+            if(OsType.getCurrent() == OsType.WINDOWS) {
+                Files.createDirectories(directory.toPath());
+                return true;
+            }
+
+            Files.createDirectories(directory.toPath(), PosixFilePermissions.asFileAttribute(getDirectoryOwnerOnlyPosixFilePermissions()));
+            return true;
+        } catch(UnsupportedOperationException e) {
+            return directory.mkdirs();
+        }
+    }
+
+    private static Set<PosixFilePermission> getDirectoryOwnerOnlyPosixFilePermissions() {
+        Set<PosixFilePermission> ownerOnly = EnumSet.noneOf(PosixFilePermission.class);
+        ownerOnly.add(PosixFilePermission.OWNER_READ);
+        ownerOnly.add(PosixFilePermission.OWNER_WRITE);
+        ownerOnly.add(PosixFilePermission.OWNER_EXECUTE);
+
+        return ownerOnly;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/net/ServerCapability.java

@@ -7,27 +7,30 @@ public class ServerCapability {
     private final int maxTargetBlocks;
     private final boolean supportsRecentMempool;
     private final boolean supportsBlockStats;
+    private final boolean supportsUnsubscribe;
 
-    public ServerCapability(boolean supportsBatching) {
-        this(supportsBatching, AppServices.TARGET_BLOCKS_RANGE.getLast());
+    public ServerCapability(boolean supportsBatching, boolean supportsUnsubscribe) {
+        this(supportsBatching, AppServices.TARGET_BLOCKS_RANGE.getLast(), supportsUnsubscribe);
     }
 
-    public ServerCapability(boolean supportsBatching, int maxTargetBlocks) {
+    public ServerCapability(boolean supportsBatching, int maxTargetBlocks, boolean supportsUnsubscribe) {
         this.supportsBatching = supportsBatching;
         this.maxTargetBlocks = maxTargetBlocks;
         this.supportsRecentMempool = false;
         this.supportsBlockStats = false;
+        this.supportsUnsubscribe = supportsUnsubscribe;
     }
 
-    public ServerCapability(boolean supportsBatching, boolean supportsRecentMempool, boolean supportsBlockStats) {
-        this(supportsBatching, AppServices.TARGET_BLOCKS_RANGE.getLast(), supportsRecentMempool, supportsBlockStats);
+    public ServerCapability(boolean supportsBatching, boolean supportsRecentMempool, boolean supportsBlockStats, boolean supportsUnsubscribe) {
+        this(supportsBatching, AppServices.TARGET_BLOCKS_RANGE.getLast(), supportsRecentMempool, supportsBlockStats, supportsUnsubscribe);
     }
 
-    public ServerCapability(boolean supportsBatching, int maxTargetBlocks, boolean supportsRecentMempool, boolean supportsBlockStats) {
+    public ServerCapability(boolean supportsBatching, int maxTargetBlocks, boolean supportsRecentMempool, boolean supportsBlockStats, boolean supportsUnsubscribe) {
         this.supportsBatching = supportsBatching;
         this.maxTargetBlocks = maxTargetBlocks;
         this.supportsRecentMempool = supportsRecentMempool;
         this.supportsBlockStats = supportsBlockStats;
+        this.supportsUnsubscribe = supportsUnsubscribe;
     }
 
     public boolean supportsBatching() {
@@ -45,4 +48,8 @@ public class ServerCapability {
     public boolean supportsBlockStats() {
         return supportsBlockStats;
     }
+
+    public boolean supportsUnsubscribe() {
+        return supportsUnsubscribe;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/net/SimpleElectrumServerRpc.java

@@ -10,6 +10,7 @@ import com.sparrowwallet.drongo.wallet.Wallet;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.event.WalletHistoryStatusEvent;
+import com.sparrowwallet.sparrow.io.Config;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -38,16 +39,32 @@ public class SimpleElectrumServerRpc implements ElectrumServerRpc {
 
     @Override
     public List<String> getServerVersion(Transport transport, String clientName, String[] supportedVersions) {
+        if(Config.get().getServerType() == ServerType.ELECTRUM_SERVER && Config.get().isLegacyServer()) {
+            return getLegacyServerVersion(transport, clientName);
+        }
+
         try {
             JsonRpcClient client = new JsonRpcClient(transport);
-            //Using 1.4 as the version number as EPS tries to parse this number to a float :(
             return new RetryLogic<List<String>>(MAX_RETRIES, RETRY_DELAY, IllegalStateException.class).getResult(() ->
-                    client.createRequest().returnAsList(String.class).method("server.version").id(idCounter.incrementAndGet()).params(clientName, "1.4").execute());
+                    client.createRequest().returnAsList(String.class).method("server.version").id(idCounter.incrementAndGet()).params(clientName, supportedVersions).execute());
+        } catch(JsonRpcException e) {
+            return getLegacyServerVersion(transport, clientName);
         } catch(Exception e) {
             throw new ElectrumServerRpcException("Error getting server version", e);
         }
     }
 
+    private List<String> getLegacyServerVersion(Transport transport, String clientName) {
+        try {
+            //Fallback to using 1.4 as the version number as EPS tries to parse this number to a float :(
+            JsonRpcClient client = new JsonRpcClient(transport);
+            return new RetryLogic<List<String>>(MAX_RETRIES, RETRY_DELAY, IllegalStateException.class).getResult(() ->
+                    client.createRequest().returnAsList(String.class).method("server.version").id(idCounter.incrementAndGet()).params(clientName, "1.4").execute());
+        } catch(Exception ex) {
+            throw new ElectrumServerRpcException("Error getting legacy server version", ex);
+        }
+    }
+
     @Override
     public String getServerBanner(Transport transport) {
         try {

src/main/java/com/sparrowwallet/sparrow/net/SubscriptionService.java

@@ -38,6 +38,6 @@ public class SubscriptionService {
             existingStatuses.add(status);
         }
 
-        Platform.runLater(() -> EventManager.get().post(new WalletNodeHistoryChangedEvent(scriptHash)));
+        Platform.runLater(() -> EventManager.get().post(new WalletNodeHistoryChangedEvent(scriptHash, status)));
     }
 }

src/main/java/com/sparrowwallet/sparrow/net/TcpOverTlsTransport.java

@@ -16,6 +16,7 @@ import java.security.cert.Certificate;
 
 public class TcpOverTlsTransport extends TcpTransport {
     private static final Logger log = LoggerFactory.getLogger(TcpOverTlsTransport.class);
+    public static final int PAD_TO_MULTIPLE_OF_BYTES = 96;
 
     protected final SSLSocketFactory sslSocketFactory;
 
@@ -41,6 +42,24 @@ public class TcpOverTlsTransport extends TcpTransport {
         sslSocketFactory = sslContext.getSocketFactory();
     }
 
+    @Override
+    protected void writeRequest(String request) throws IOException {
+        int currentLength = request.length();
+        int targetLength;
+        if(currentLength % PAD_TO_MULTIPLE_OF_BYTES == 0) {
+            targetLength = currentLength;
+        } else {
+            targetLength = ((currentLength / PAD_TO_MULTIPLE_OF_BYTES) + 1) * PAD_TO_MULTIPLE_OF_BYTES;
+        }
+
+        int paddingNeeded = targetLength - currentLength;
+        if(paddingNeeded > 0) {
+            super.writeRequest(request + " ".repeat(paddingNeeded));
+        } else {
+            super.writeRequest(request);
+        }
+    }
+
     private TrustManager[] getTrustManagers(File crtFile) throws IOException, CertificateException, NoSuchAlgorithmException, KeyStoreException {
         if(crtFile == null) {
             return new TrustManager[] {

src/main/java/com/sparrowwallet/sparrow/net/TcpTransport.java

@@ -97,7 +97,7 @@ public class TcpTransport implements CloseableTransport, TimeoutCounter {
         }
     }
 
-    private void writeRequest(String request) throws IOException {
+    protected void writeRequest(String request) throws IOException {
         if(log.isTraceEnabled()) {
             log.trace("Sending to electrum server at " + server + ": " + request);
         }
@@ -106,7 +106,7 @@ public class TcpTransport implements CloseableTransport, TimeoutCounter {
             throw new IllegalStateException("Socket connection has not been established.");
         }
 
-        PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())));
+        PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream(), StandardCharsets.UTF_8)));
         out.println(request);
         out.flush();
     }

src/main/java/com/sparrowwallet/sparrow/net/cormorant/bitcoind/BitcoindClient.java

@@ -149,6 +149,9 @@ public class BitcoindClient {
         List<String> loadedWallets;
         try {
             loadedWallets = getBitcoindService().listWallets();
+            if(loadedWallets == null) {
+                throw new BitcoinRPCException("Wallet support must be enabled in Bitcoin Core");
+            }
             legacyWalletExists = loadedWallets.contains(Bwt.DEFAULT_CORE_WALLET);
         } catch(JsonRpcException e) {
             if(e.getErrorMessage().getCode() == RPC_METHOD_NOT_FOUND) {

src/main/java/com/sparrowwallet/sparrow/net/cormorant/electrum/ElectrumServerService.java

@@ -35,10 +35,11 @@ public class ElectrumServerService {
     }
 
     @JsonRpcMethod("server.version")
-    public List<String> getServerVersion(@JsonRpcParam("client_name") String clientName, @JsonRpcParam("protocol_version") String protocolVersion) throws UnsupportedVersionException {
-        Version clientVersion = new Version(protocolVersion);
+    public List<String> getServerVersion(@JsonRpcParam("client_name") String clientName, @JsonRpcParam("protocol_version") String[] protocolVersion) throws UnsupportedVersionException {
+        String version = protocolVersion.length > 1 ? protocolVersion[1] : protocolVersion[0];
+        Version clientVersion = new Version(version);
         if(clientVersion.compareTo(VERSION) < 0) {
-            throw new UnsupportedVersionException(protocolVersion);
+            throw new UnsupportedVersionException(version);
         }
 
         return List.of(Cormorant.SERVER_NAME + " " + SparrowWallet.APP_VERSION, VERSION.get());

src/main/java/com/sparrowwallet/sparrow/payjoin/Payjoin.java

@@ -40,6 +40,10 @@ public class Payjoin {
         this.wallet = wallet;
         this.psbt = psbt;
 
+        if(payjoinURI.getAddress() == null) {
+            throw new IllegalArgumentException("Payjoin URI must have an address");
+        }
+
         for(PSBTInput psbtInput : psbt.getPsbtInputs()) {
             if(psbtInput.getUtxo() == null) {
                 throw new IllegalArgumentException("Original PSBT for payjoin transaction must have non_witness_utxo or witness_utxo fields for all inputs");
@@ -104,6 +108,9 @@ public class Payjoin {
         } catch(PSBTParseException e) {
             log.error("Error parsing received PSBT", e);
             throw new PayjoinReceiverException("Payjoin receiver returned invalid PSBT", e);
+        } catch(PayjoinReceiverException e) {
+            log.error("Payjoin receiver error", e);
+            throw e;
         } catch(Exception e) {
             log.error("Payjoin error", e);
             throw new PayjoinReceiverException("Payjoin error", e);

src/main/java/com/sparrowwallet/sparrow/paynym/PayNymController.java

@@ -616,6 +616,7 @@ public class PayNymController {
         List<byte[]> opReturns = List.of(blindedPaymentCode);
         Double feeRate = AppServices.getDefaultFeeRate();
         Double minimumFeeRate = AppServices.getMinimumFeeRate();
+        Double minRelayFeeRate = AppServices.getMinimumRelayFeeRate();
         boolean groupByAddress = Config.get().isGroupByAddress();
         boolean includeMempoolOutputs = Config.get().isIncludeMempoolOutputs();
 
@@ -623,7 +624,8 @@ public class PayNymController {
         List<UtxoSelector> utxoSelectors = List.of(utxos == null ? new KnapsackUtxoSelector(noInputsFee) : new PresetUtxoSelector(utxos, true, false));
         List<TxoFilter> txoFilters = List.of(new SpentTxoFilter(), new FrozenTxoFilter(), new CoinbaseTxoFilter(wallet));
 
-        return wallet.createWalletTransaction(utxoSelectors, txoFilters, payments, opReturns, Collections.emptySet(), feeRate, minimumFeeRate, null, AppServices.getCurrentBlockHeight(), groupByAddress, includeMempoolOutputs);
+        return wallet.createWalletTransaction(utxoSelectors, txoFilters, payments, opReturns, Collections.emptySet(), feeRate, minimumFeeRate, minRelayFeeRate, null,
+                AppServices.getCurrentBlockHeight(), groupByAddress, includeMempoolOutputs, true);
     }
 
     private Map<BlockTransaction, WalletNode> getNotificationTransaction(PaymentCode externalPaymentCode) {

src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java

@@ -7,6 +7,8 @@ import com.sparrowwallet.drongo.address.Address;
 import com.sparrowwallet.drongo.protocol.*;
 import com.sparrowwallet.drongo.psbt.PSBT;
 import com.sparrowwallet.drongo.psbt.PSBTInput;
+import com.sparrowwallet.drongo.silentpayments.SilentPayment;
+import com.sparrowwallet.drongo.silentpayments.SilentPaymentAddress;
 import com.sparrowwallet.drongo.uri.BitcoinURI;
 import com.sparrowwallet.drongo.wallet.*;
 import com.sparrowwallet.hummingbird.UR;
@@ -57,7 +59,6 @@ import tornadofx.control.Fieldset;
 import com.google.common.eventbus.Subscribe;
 import tornadofx.control.Form;
 
-import javax.swing.text.html.Option;
 import java.io.*;
 import java.net.*;
 import java.nio.charset.StandardCharsets;
@@ -180,6 +181,9 @@ public class HeadersController extends TransactionFormController implements Init
     @FXML
     private CopyableLabel blockTimestamp;
 
+    @FXML
+    private Form blockchainSpacerForm;
+
     @FXML
     private Form signingWalletForm;
 
@@ -451,6 +455,7 @@ public class HeadersController extends TransactionFormController implements Init
         headersForm.setWalletTransaction(getWalletTransaction(headersForm.getInputTransactions()));
 
         blockchainForm.managedProperty().bind(blockchainForm.visibleProperty());
+        blockchainSpacerForm.managedProperty().bind(blockchainForm.managedProperty());
 
         signingWalletForm.managedProperty().bind(signingWalletForm.visibleProperty());
         sigHashForm.managedProperty().bind(sigHashForm.visibleProperty());
@@ -636,6 +641,7 @@ public class HeadersController extends TransactionFormController implements Init
             }
 
             List<Payment> payments = new ArrayList<>();
+            List<WalletTransaction.Output> outputs = new ArrayList<>();
             Map<WalletNode, Long> changeMap = new LinkedHashMap<>();
             Map<Script, WalletNode> changeOutputScripts = wallet.getWalletOutputScripts(wallet.getChangeKeyPurpose());
             for(TransactionOutput txOutput : headersForm.getTransaction().getOutputs()) {
@@ -654,6 +660,7 @@ public class HeadersController extends TransactionFormController implements Init
                             changeMap.put(changeNode, txOutput.getValue());
                         }
                     }
+                    outputs.add(new WalletTransaction.ChangeOutput(txOutput, changeNode, txOutput.getValue()));
                 } else {
                     Payment.Type paymentType = Payment.Type.DEFAULT;
                     Wallet masterWallet = wallet.isMasterWallet() ? wallet : wallet.getMasterWallet();
@@ -664,24 +671,33 @@ public class HeadersController extends TransactionFormController implements Init
 
                     BlockTransactionHashIndex receivedTxo = walletTxos.keySet().stream().filter(txo -> txo.getHash().equals(txOutput.getHash()) && txo.getIndex() == txOutput.getIndex()).findFirst().orElse(null);
                     String label = headersForm.getName() == null || (headersForm.getName().startsWith("[") && headersForm.getName().endsWith("]") && headersForm.getName().length() == 8) ? null : headersForm.getName();
-                    try {
-                        Payment payment = new Payment(txOutput.getScript().getToAddresses()[0], receivedTxo != null ? receivedTxo.getLabel() : label, txOutput.getValue(), false, paymentType);
+                    Address address = txOutput.getScript().getToAddress();
+                    SilentPaymentAddress silentPaymentAddress = headersForm.getSilentPaymentAddress(txOutput);
+                    label = receivedTxo != null ? receivedTxo.getLabel() : label;
+                    if(address != null || silentPaymentAddress != null) {
+                        Payment payment = (silentPaymentAddress == null ?
+                                new Payment(address, label, txOutput.getValue(), false, paymentType) :
+                                new SilentPayment(silentPaymentAddress, address, label, txOutput.getValue(), false));
                         WalletTransaction createdTx = AppServices.get().getCreatedTransaction(selectedTxos.keySet());
                         if(createdTx != null) {
-                            Optional<String> optLabel = createdTx.getPayments().stream().filter(pymt -> pymt.getAddress().equals(payment.getAddress()) && pymt.getAmount() == payment.getAmount()).map(Payment::getLabel).findFirst();
+                            Optional<String> optLabel = createdTx.getPayments().stream()
+                                    .filter(pymt -> (pymt instanceof SilentPayment silentPayment ? silentPayment.getSilentPaymentAddress().equals(silentPaymentAddress) :
+                                            pymt.getAddress().equals(payment.getAddress())) && pymt.getAmount() == payment.getAmount()).map(Payment::getLabel).findFirst();
                             if(optLabel.isPresent()) {
                                 payment.setLabel(optLabel.get());
                                 outputIndexLabels.put(txOutput.getIndex(), optLabel.get());
                             }
                         }
                         payments.add(payment);
-                    } catch(Exception e) {
-                        //ignore
+                        outputs.add(payment instanceof SilentPayment silentPayment ? new WalletTransaction.SilentPaymentOutput(txOutput, silentPayment) :
+                                new WalletTransaction.PaymentOutput(txOutput, payment));
+                    } else {
+                        outputs.add(new WalletTransaction.NonAddressOutput(txOutput));
                     }
                 }
             }
 
-            return new WalletTransaction(wallet, headersForm.getTransaction(), Collections.emptyList(), List.of(selectedTxos), payments, changeMap, fee.getValue(), walletInputTransactions);
+            return new WalletTransaction(wallet, headersForm.getTransaction(), Collections.emptyList(), List.of(selectedTxos), payments, outputs, changeMap, fee.getValue(), walletInputTransactions);
         } else {
             Map<BlockTransactionHashIndex, WalletNode> selectedTxos = headersForm.getTransaction().getInputs().stream()
                     .collect(Collectors.toMap(txInput -> getBlockTransactionInput(inputTransactions, txInput),
@@ -691,16 +707,25 @@ public class HeadersController extends TransactionFormController implements Init
             selectedTxos.entrySet().forEach(entry -> entry.setValue(null));
 
             List<Payment> payments = new ArrayList<>();
+            List<WalletTransaction.Output> outputs = new ArrayList<>();
             for(TransactionOutput txOutput : headersForm.getTransaction().getOutputs()) {
-                try {
-                    BlockTransactionHashIndex receivedTxo = getBlockTransactionOutput(txOutput);
-                    payments.add(new Payment(txOutput.getScript().getToAddresses()[0], receivedTxo != null ? receivedTxo.getLabel() : null, txOutput.getValue(), false));
-                } catch(Exception e) {
-                    //ignore
+                Address address = txOutput.getScript().getToAddress();
+                SilentPaymentAddress silentPaymentAddress = headersForm.getSilentPaymentAddress(txOutput);
+                BlockTransactionHashIndex receivedTxo = getBlockTransactionOutput(txOutput);
+                String label = receivedTxo != null ? receivedTxo.getLabel() : null;
+                if(address != null || silentPaymentAddress != null) {
+                    Payment payment = (silentPaymentAddress == null ?
+                            new Payment(address, label, txOutput.getValue(), false) :
+                            new SilentPayment(silentPaymentAddress, address, label, txOutput.getValue(), false));
+                    payments.add(payment);
+                    outputs.add(payment instanceof SilentPayment silentPayment ? new WalletTransaction.SilentPaymentOutput(txOutput, silentPayment) :
+                            new WalletTransaction.PaymentOutput(txOutput, payment));
+                } else {
+                    outputs.add(new WalletTransaction.NonAddressOutput(txOutput));
                 }
             }
 
-            return new WalletTransaction(null, headersForm.getTransaction(), Collections.emptyList(), List.of(selectedTxos), payments, Collections.emptyMap(), fee.getValue(), inputTransactions);
+            return new WalletTransaction(null, headersForm.getTransaction(), Collections.emptyList(), List.of(selectedTxos), payments, outputs, Collections.emptyMap(), fee.getValue(), inputTransactions);
         }
     }
 
@@ -927,7 +952,7 @@ public class HeadersController extends TransactionFormController implements Init
 
         //Don't include non witness utxo fields for segwit wallets when displaying the PSBT as a QR - it can add greatly to the time required for scanning
         boolean includeNonWitnessUtxos = !Arrays.asList(ScriptType.WITNESS_TYPES).contains(headersForm.getSigningWallet().getScriptType());
-        byte[] psbtBytes = headersForm.getPsbt().serialize(true, includeNonWitnessUtxos);
+        byte[] psbtBytes = headersForm.getPsbt().getForExport().serialize(true, includeNonWitnessUtxos);
 
         CryptoPSBT cryptoPSBT = new CryptoPSBT(psbtBytes);
         BBQR bbqr = addBbqrOption ? new BBQR(BBQRType.PSBT, psbtBytes) : null;
@@ -1010,7 +1035,7 @@ public class HeadersController extends TransactionFormController implements Init
             }
 
             try(FileOutputStream outputStream = new FileOutputStream(file)) {
-                outputStream.write(headersForm.getPsbt().serialize());
+                outputStream.write(headersForm.getPsbt().getForExport().serialize());
             } catch(IOException e) {
                 log.error("Error saving PSBT", e);
                 AppServices.showErrorDialog("Error saving PSBT", "Cannot write to " + file.getAbsolutePath());
@@ -1067,7 +1092,12 @@ public class HeadersController extends TransactionFormController implements Init
 
     private void signUnencryptedKeystores(Wallet unencryptedWallet) {
         try {
-            unencryptedWallet.sign(headersForm.getPsbt());
+            Map<PSBTInput, WalletNode> signingNodes = unencryptedWallet.getSigningNodes(headersForm.getPsbt());
+            List<SilentPayment> silentPayments = unencryptedWallet.computeSilentPaymentOutputs(headersForm.getPsbt(), signingNodes);
+            if(!silentPayments.isEmpty()) {
+                EventManager.get().post(new TransactionOutputsChangedEvent(headersForm.getTransaction()));
+            }
+            unencryptedWallet.sign(signingNodes);
             updateSignedKeystores(headersForm.getSigningWallet());
         } catch(Exception e) {
             log.warn("Failed to Sign", e);
@@ -1139,7 +1169,7 @@ public class HeadersController extends TransactionFormController implements Init
 
         if(fee.getValue() > 0) {
             double feeRateAmt = fee.getValue() / headersForm.getTransaction().getVirtualSize();
-            if(feeRateAmt > AppServices.LONG_FEE_RATES_RANGE.get(AppServices.LONG_FEE_RATES_RANGE.size() - 1)) {
+            if(feeRateAmt > AppServices.getLongFeeRatesRange().getLast()) {
                 Optional<ButtonType> optType = AppServices.showWarningDialog("Very high fee rate!",
                         "This transaction pays a very high fee rate of " + String.format("%.0f", feeRateAmt) + " sats/vB.\n\nBroadcast this transaction?", ButtonType.YES, ButtonType.NO);
                 if(optType.isPresent() && optType.get() == ButtonType.NO) {
@@ -1225,9 +1255,17 @@ public class HeadersController extends TransactionFormController implements Init
 
             UnitFormat format = Config.get().getUnitFormat() == null ? UnitFormat.DOT : Config.get().getUnitFormat();
             if(failMessage.startsWith("min relay fee not met")) {
-                AppServices.showErrorDialog("Error broadcasting transaction", "The fee rate for the signed transaction is below the minimum " + format.getCurrencyFormat().format(AppServices.getMinimumRelayFeeRate()) + " sats/vB. " +
-                        "This usually happens because a keystore has created a signature that is larger than necessary.\n\n" +
-                        "You can solve this by recreating the transaction with a slightly increased fee rate.");
+                if(AppServices.getServerMinimumRelayFeeRate() != null && !AppServices.getServerMinimumRelayFeeRate().equals(AppServices.getMinimumRelayFeeRate())) {
+                    AppServices.showErrorDialog("Error broadcasting transaction", "The fee rate for the signed transaction is below the minimum configured relay fee rate for the server of " +
+                            format.getCurrencyFormat().format(AppServices.getServerMinimumRelayFeeRate()) + " sats/vB.");
+                } else {
+                    Double minRelayFeeRate = AppServices.getServerMinimumRelayFeeRate() != null ? AppServices.getServerMinimumRelayFeeRate() : AppServices.getMinimumRelayFeeRate();
+                    AppServices.showErrorDialog("Error broadcasting transaction", "The fee rate for the signed transaction is below the minimum " + format.getCurrencyFormat().format(minRelayFeeRate) + " sats/vB. " +
+                            "This usually happens because a keystore has created a signature that is larger than necessary.\n\n" +
+                            "You can solve this by recreating the transaction with a slightly increased fee rate.");
+                }
+            } else if(failMessage.startsWith("dust")) {
+                AppServices.showErrorDialog("Error broadcasting transaction", "The server will not accept this transaction for broadcast due to its configured dust limit policy.");
             } else if(failMessage.startsWith("bad-txns-inputs-missingorspent")) {
                 AppServices.showErrorDialog("Error broadcasting transaction", "The server returned an error indicating some or all of the UTXOs this transaction is spending are missing or have already been spent.");
             } else if(failMessage.contains("mempool min fee not met")) {
@@ -1559,6 +1597,23 @@ public class HeadersController extends TransactionFormController implements Init
 
             signButtonBox.setVisible(false);
             broadcastButtonBox.setVisible(true);
+
+            if(Config.get().hasServer() && !AppServices.isConnected() && !AppServices.isConnecting()) {
+                if(Config.get().getConnectToBroadcast() == null) {
+                    Platform.runLater(() -> {
+                        ConfirmationAlert confirmationAlert = new ConfirmationAlert("Connect to broadcast?", "Connect to the configured server to broadcast the transaction?", ButtonType.NO, ButtonType.YES);
+                        Optional<ButtonType> optType = confirmationAlert.showAndWait();
+                        if(confirmationAlert.isDontAskAgain() && optType.isPresent()) {
+                            Config.get().setConnectToBroadcast(optType.get() == ButtonType.YES);
+                        }
+                        if(optType.isPresent() && optType.get() == ButtonType.YES) {
+                            EventManager.get().post(new RequestConnectEvent());
+                        }
+                    });
+                } else if(Config.get().getConnectToBroadcast()) {
+                    Platform.runLater(() -> EventManager.get().post(new RequestConnectEvent()));
+                }
+            }
         }
     }
 
@@ -1570,6 +1625,13 @@ public class HeadersController extends TransactionFormController implements Init
         }
     }
 
+    @Subscribe
+    public void transactionOutputsChanged(TransactionOutputsChangedEvent event) {
+        if(event.getTransaction().equals(headersForm.getTransaction())) {
+            headersForm.setWalletTransaction(getWalletTransaction(headersForm.getInputTransactions()));
+        }
+    }
+
     @Subscribe
     public void transactionExtracted(TransactionExtractedEvent event) {
         if(event.getPsbt().equals(headersForm.getPsbt())) {

src/main/java/com/sparrowwallet/sparrow/transaction/InputController.java

@@ -337,7 +337,7 @@ public class InputController extends TransactionFormController implements Initia
                 }
             } else {
                 if(txInput.isAbsoluteTimeLocked()) {
-                    txInput.setSequenceNumber(TransactionInput.SEQUENCE_LOCKTIME_DISABLED - 1);
+                    txInput.setSequenceNumber(TransactionInput.SEQUENCE_RBF_DISABLED);
                     if(oldValue != null) {
                         EventManager.get().post(new TransactionChangedEvent(transaction));
                     }
@@ -389,7 +389,7 @@ public class InputController extends TransactionFormController implements Initia
                     if(rbf.selectedProperty().getValue()) {
                         txInput.setSequenceNumber(TransactionInput.SEQUENCE_RBF_ENABLED);
                     } else {
-                        txInput.setSequenceNumber(TransactionInput.SEQUENCE_LOCKTIME_DISABLED - 1);
+                        txInput.setSequenceNumber(TransactionInput.SEQUENCE_RBF_DISABLED);
                     }
                     if(old_toggle != null) {
                         EventManager.get().post(new TransactionChangedEvent(transaction));

src/main/java/com/sparrowwallet/sparrow/transaction/OutputController.java

@@ -5,14 +5,12 @@ import com.sparrowwallet.drongo.address.Address;
 import com.sparrowwallet.drongo.protocol.NonStandardScriptException;
 import com.sparrowwallet.drongo.protocol.TransactionInput;
 import com.sparrowwallet.drongo.protocol.TransactionOutput;
+import com.sparrowwallet.drongo.silentpayments.SilentPaymentAddress;
 import com.sparrowwallet.drongo.wallet.*;
 import com.sparrowwallet.sparrow.AppServices;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.control.*;
-import com.sparrowwallet.sparrow.event.PSBTReorderedEvent;
-import com.sparrowwallet.sparrow.event.UnitFormatChangedEvent;
-import com.sparrowwallet.sparrow.event.BlockTransactionOutputsFetchedEvent;
-import com.sparrowwallet.sparrow.event.ViewTransactionEvent;
+import com.sparrowwallet.sparrow.event.*;
 import com.sparrowwallet.sparrow.net.ElectrumServer;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
@@ -70,20 +68,7 @@ public class OutputController extends TransactionFormController implements Initi
             updateOutputLegendFromWallet(txOutput, walletTransaction != null ? walletTransaction.getWallet() : null);
         });
         updateOutputLegendFromWallet(txOutput, outputForm.getWallet());
-
-        value.setValue(txOutput.getValue());
-        to.setVisible(false);
-        try {
-            Address[] addresses = txOutput.getScript().getToAddresses();
-            to.setVisible(true);
-            if(addresses.length == 1) {
-                address.setAddress(addresses[0]);
-            } else {
-                address.setText("multiple addresses");
-            }
-        } catch(NonStandardScriptException e) {
-            //ignore
-        }
+        updateSends(txOutput);
 
         spentField.managedProperty().bind(spentField.visibleProperty());
         spentByField.managedProperty().bind(spentByField.visibleProperty());
@@ -98,6 +83,32 @@ public class OutputController extends TransactionFormController implements Initi
         }
 
         initializeScriptField(scriptPubKeyArea);
+        updateScriptPubKey(txOutput);
+    }
+
+    private void updateSends(TransactionOutput txOutput) {
+        value.setValue(txOutput.getValue());
+        to.setVisible(false);
+        Address toAddress = txOutput.getScript().getToAddress();
+        SilentPaymentAddress silentPaymentAddress = outputForm.getSilentPaymentAddress(txOutput);
+        if(toAddress != null) {
+            to.setVisible(true);
+            address.setAddress(toAddress);
+        } else if(silentPaymentAddress != null) {
+            to.setVisible(true);
+            address.setText(silentPaymentAddress.toAbbreviatedString());
+        } else {
+            try {
+                txOutput.getScript().getToAddresses();
+                to.setVisible(true);
+                address.setText("multiple addresses");
+            } catch(NonStandardScriptException e) {
+                //ignore
+            }
+        }
+    }
+
+    private void updateScriptPubKey(TransactionOutput txOutput) {
         scriptPubKeyArea.clear();
         scriptPubKeyArea.appendScript(txOutput.getScript(), null, null);
     }
@@ -115,6 +126,8 @@ public class OutputController extends TransactionFormController implements Initi
                 WalletTransaction.Output output = outputs.get(outputForm.getIndex());
                 if(output instanceof WalletTransaction.NonAddressOutput) {
                     outputFieldset.setText(baseText);
+                } else if(output instanceof WalletTransaction.SilentPaymentOutput silentPaymentOutput) {
+                    outputFieldset.setText(baseText + " - Silent Payment");
                 } else if(output instanceof WalletTransaction.PaymentOutput paymentOutput) {
                     Payment payment = paymentOutput.getPayment();
                     Wallet toWallet = walletTx.getToWallet(AppServices.get().getOpenWallets().keySet(), payment);
@@ -206,4 +219,12 @@ public class OutputController extends TransactionFormController implements Initi
             updateOutputLegendFromWallet(outputForm.getTransactionOutput(), null);
         }
     }
+
+    @Subscribe
+    public void transactionOutputsChanged(TransactionOutputsChangedEvent event) {
+        if(event.getTransaction().equals(outputForm.getTransaction())) {
+            updateSends(outputForm.getTransactionOutput());
+            updateScriptPubKey(outputForm.getTransactionOutput());
+        }
+    }
 }

src/main/java/com/sparrowwallet/sparrow/transaction/OutputForm.java

@@ -89,7 +89,7 @@ public class OutputForm extends IndexedTransactionForm {
                     }
                 } else if(output instanceof WalletTransaction.PaymentOutput paymentOutput) {
                     Payment payment = paymentOutput.getPayment();
-                    return new Label(payment.getLabel() != null && payment.getType() != Payment.Type.FAKE_MIX && payment.getType() != Payment.Type.MIX ? payment.getLabel() : payment.getAddress().toString(),
+                    return new Label(payment.getLabel() != null && payment.getType() != Payment.Type.FAKE_MIX && payment.getType() != Payment.Type.MIX ? payment.getLabel() : payment.toString(),
                             GlyphUtils.getOutputGlyph(getWalletTransaction(), payment));
                 } else if(output instanceof WalletTransaction.ChangeOutput changeOutput) {
                     return new Label("Change", GlyphUtils.getChangeGlyph());

src/main/java/com/sparrowwallet/sparrow/transaction/OutputsController.java

@@ -6,6 +6,7 @@ import com.sparrowwallet.drongo.protocol.TransactionOutput;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.control.CopyableCoinLabel;
 import com.sparrowwallet.sparrow.control.CopyableLabel;
+import com.sparrowwallet.sparrow.event.TransactionOutputsChangedEvent;
 import com.sparrowwallet.sparrow.event.UnitFormatChangedEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
@@ -60,4 +61,11 @@ public class OutputsController extends TransactionFormController implements Init
     public void unitFormatChanged(UnitFormatChangedEvent event) {
         total.refresh(event.getUnitFormat(), event.getBitcoinUnit());
     }
+
+    @Subscribe
+    public void transactionOutputsChanged(TransactionOutputsChangedEvent event) {
+        if(event.getTransaction().equals(outputsForm.getTransaction())) {
+            updatePieData(outputsPie, outputsForm.getTransaction().getOutputs());
+        }
+    }
 }

src/main/java/com/sparrowwallet/sparrow/transaction/TransactionData.java

@@ -3,6 +3,8 @@ package com.sparrowwallet.sparrow.transaction;
 import com.sparrowwallet.drongo.KeyPurpose;
 import com.sparrowwallet.drongo.protocol.*;
 import com.sparrowwallet.drongo.psbt.PSBT;
+import com.sparrowwallet.drongo.psbt.PSBTOutput;
+import com.sparrowwallet.drongo.silentpayments.SilentPaymentAddress;
 import com.sparrowwallet.drongo.wallet.*;
 import com.sparrowwallet.sparrow.io.Storage;
 import javafx.beans.property.SimpleObjectProperty;
@@ -193,4 +195,16 @@ public class TransactionData {
     public Wallet getWallet() {
         return getSigningWallet() != null ? getSigningWallet() : (getWalletTransaction() != null ? getWalletTransaction().getWallet() : null);
     }
+
+    protected SilentPaymentAddress getSilentPaymentAddress(TransactionOutput txOutput) {
+        if(getPsbt() != null && txOutput.getParent() != null) {
+            for(PSBTOutput psbtOutput : getPsbt().getPsbtOutputs()) {
+                if(psbtOutput.getOutput().getIndex() == txOutput.getIndex() && psbtOutput.getSilentPaymentAddress() != null) {
+                    return psbtOutput.getSilentPaymentAddress();
+                }
+            }
+        }
+
+        return null;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/transaction/TransactionForm.java

@@ -2,8 +2,10 @@ package com.sparrowwallet.sparrow.transaction;
 
 import com.sparrowwallet.drongo.protocol.Sha256Hash;
 import com.sparrowwallet.drongo.protocol.Transaction;
+import com.sparrowwallet.drongo.protocol.TransactionOutput;
 import com.sparrowwallet.drongo.protocol.TransactionSignature;
 import com.sparrowwallet.drongo.psbt.PSBT;
+import com.sparrowwallet.drongo.silentpayments.SilentPaymentAddress;
 import com.sparrowwallet.drongo.wallet.*;
 import com.sparrowwallet.sparrow.io.Storage;
 import javafx.beans.property.SimpleObjectProperty;
@@ -112,6 +114,10 @@ public abstract class TransactionForm {
         return txdata.getWallet();
     }
 
+    public SilentPaymentAddress getSilentPaymentAddress(TransactionOutput output) {
+        return txdata.getSilentPaymentAddress(output);
+    }
+
     public boolean isEditable() {
         if(getBlockTransaction() != null) {
             return false;

src/main/java/com/sparrowwallet/sparrow/transaction/TransactionFormController.java

@@ -5,6 +5,7 @@ import com.sparrowwallet.drongo.BitcoinUnit;
 import com.sparrowwallet.drongo.address.Address;
 import com.sparrowwallet.drongo.protocol.NonStandardScriptException;
 import com.sparrowwallet.drongo.protocol.TransactionOutput;
+import com.sparrowwallet.drongo.silentpayments.SilentPaymentAddress;
 import com.sparrowwallet.sparrow.UnitFormat;
 import com.sparrowwallet.sparrow.BaseController;
 import com.sparrowwallet.sparrow.EventManager;
@@ -33,17 +34,7 @@ public abstract class TransactionFormController extends BaseController {
         long totalAmt = 0;
         for(int i = 0; i < outputs.size(); i++) {
             TransactionOutput output = outputs.get(i);
-            String name = "#" + i;
-            try {
-                Address[] addresses = output.getScript().getToAddresses();
-                if(addresses.length == 1) {
-                    name = name + " " + addresses[0].getAddress();
-                } else {
-                    name = name + " [" + addresses[0].getAddress() + ",...]";
-                }
-            } catch(NonStandardScriptException e) {
-                //ignore
-            }
+            String name = getPieDataName(i, output);
 
             totalAmt += output.getValue();
             outputsPieData.add(new PieChart.Data(name, output.getValue()));
@@ -52,6 +43,34 @@ public abstract class TransactionFormController extends BaseController {
         addPieData(pie, outputsPieData);
     }
 
+    protected void updatePieData(PieChart pie, List<TransactionOutput> outputs) {
+        for(int i = 0; i < outputs.size(); i++) {
+            TransactionOutput output = outputs.get(i);
+            String name = getPieDataName(i, output);
+            pie.getData().get(i).setName(name);
+        }
+    }
+
+    private String getPieDataName(int i, TransactionOutput output) {
+        String name = "#" + i;
+        Address address = output.getScript().getToAddress();
+        SilentPaymentAddress silentPaymentAddress = getTransactionForm().getSilentPaymentAddress(output);
+        if(address != null) {
+            name = name + " " + address.getAddress();
+        } else if(silentPaymentAddress != null) {
+            name = name + " " + silentPaymentAddress.toAbbreviatedString();
+        } else {
+            try {
+                Address[] addresses = output.getScript().getToAddresses();
+                name = name + " [" + addresses[0].getAddress() + ",...]";
+            } catch(NonStandardScriptException e) {
+                //ignore
+            }
+        }
+
+        return name;
+    }
+
     protected void addCoinbasePieData(PieChart pie, long value) {
         ObservableList<PieChart.Data> outputsPieData = FXCollections.observableList(List.of(new PieChart.Data("Coinbase", value)));
         addPieData(pie, outputsPieData);

src/main/java/com/sparrowwallet/sparrow/wallet/PaymentController.java

@@ -1,5 +1,6 @@
 package com.sparrowwallet.sparrow.wallet;
 
+import com.google.common.base.Throwables;
 import com.google.common.eventbus.Subscribe;
 import com.sparrowwallet.drongo.BitcoinUnit;
 import com.sparrowwallet.drongo.KeyPurpose;
@@ -9,15 +10,15 @@ import com.sparrowwallet.drongo.address.P2PKHAddress;
 import com.sparrowwallet.drongo.bip47.InvalidPaymentCodeException;
 import com.sparrowwallet.drongo.bip47.PaymentCode;
 import com.sparrowwallet.drongo.crypto.ECKey;
+import com.sparrowwallet.drongo.dns.DnsPaymentCache;
 import com.sparrowwallet.drongo.protocol.ScriptType;
 import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.drongo.protocol.TransactionOutput;
+import com.sparrowwallet.drongo.silentpayments.SilentPayment;
+import com.sparrowwallet.drongo.silentpayments.SilentPaymentAddress;
 import com.sparrowwallet.drongo.uri.BitcoinURI;
 import com.sparrowwallet.drongo.wallet.*;
-import com.sparrowwallet.sparrow.UnitFormat;
-import com.sparrowwallet.sparrow.AppServices;
-import com.sparrowwallet.sparrow.CurrencyRate;
-import com.sparrowwallet.sparrow.EventManager;
+import com.sparrowwallet.sparrow.*;
 import com.sparrowwallet.sparrow.control.*;
 import com.sparrowwallet.sparrow.event.*;
 import com.sparrowwallet.sparrow.glyphfont.FontAwesome5;
@@ -25,6 +26,8 @@ import com.sparrowwallet.sparrow.io.CardApi;
 import com.sparrowwallet.sparrow.io.Config;
 import com.sparrowwallet.sparrow.io.Storage;
 import com.sparrowwallet.sparrow.net.ExchangeSource;
+import com.sparrowwallet.drongo.dns.DnsPayment;
+import com.sparrowwallet.drongo.dns.DnsPaymentResolver;
 import com.sparrowwallet.sparrow.paynym.PayNym;
 import com.sparrowwallet.sparrow.paynym.PayNymDialog;
 import javafx.application.Platform;
@@ -36,21 +39,32 @@ import javafx.beans.value.ChangeListener;
 import javafx.beans.value.ObservableValue;
 import javafx.collections.FXCollections;
 import javafx.collections.ListChangeListener;
+import javafx.concurrent.Service;
+import javafx.concurrent.Task;
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
 import javafx.scene.Node;
 import javafx.scene.control.*;
+import javafx.scene.input.Clipboard;
+import javafx.scene.input.ClipboardContent;
+import javafx.scene.layout.HBox;
 import org.controlsfx.glyphfont.Glyph;
 import org.controlsfx.validation.ValidationResult;
 import org.controlsfx.validation.ValidationSupport;
 import org.controlsfx.validation.Validator;
+import org.girod.javafx.svgimage.SVGImage;
+import org.girod.javafx.svgimage.SVGLoader;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.text.DecimalFormat;
 import java.util.*;
+import java.util.concurrent.TimeoutException;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 
@@ -131,6 +145,10 @@ public class PaymentController extends WalletFormController implements Initializ
 
     private final ObjectProperty<PayNym> payNymProperty = new SimpleObjectProperty<>();
 
+    private final ObjectProperty<SilentPaymentAddress> silentPaymentAddressProperty = new SimpleObjectProperty<>();
+
+    private final ObjectProperty<DnsPayment> dnsPaymentProperty = new SimpleObjectProperty<>();
+
     private static final Wallet payNymWallet = new Wallet() {
         @Override
         public String getFullDisplayName() {
@@ -145,6 +163,112 @@ public class PaymentController extends WalletFormController implements Initializ
         }
     };
 
+    private final ChangeListener<String> addressListener = new ChangeListener<>() {
+        @Override
+        public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
+            address.leftProperty().set(null);
+
+            if(payNymProperty.get() != null && !newValue.equals(payNymProperty.get().nymName())) {
+                payNymProperty.set(null);
+            }
+
+            if(dnsPaymentProperty.get() != null && !newValue.equals(dnsPaymentProperty.get().hrn())) {
+                dnsPaymentProperty.set(null);
+            }
+
+            if(silentPaymentAddressProperty.get() != null && !newValue.equals(silentPaymentAddressProperty.get().getAddress())) {
+                silentPaymentAddressProperty.set(null);
+            }
+
+            try {
+                BitcoinURI bitcoinURI = new BitcoinURI(newValue);
+                Platform.runLater(() -> updateFromURI(bitcoinURI));
+                return;
+            } catch(Exception e) {
+                //ignore, not a URI
+            }
+
+            Optional<String> optDnsPaymentHrn = DnsPayment.getHrn(newValue);
+            if(optDnsPaymentHrn.isPresent()) {
+                String dnsPaymentHrn = optDnsPaymentHrn.get();
+                DnsPayment cachedDnsPayment = DnsPaymentCache.getDnsPayment(dnsPaymentHrn);
+                if(cachedDnsPayment != null) {
+                    setDnsPayment(cachedDnsPayment);
+                    return;
+                }
+
+                if(Config.get().hasServer() && !AppServices.isConnected() && !AppServices.isConnecting()) {
+                    if(Config.get().getConnectToResolve() == null || Config.get().getConnectToResolve() == Boolean.FALSE) {
+                        Platform.runLater(() -> {
+                            ConfirmationAlert confirmationAlert = new ConfirmationAlert("Connect to resolve?", "You are currently offline. Connect to resolve the address?", ButtonType.NO, ButtonType.YES);
+                            Optional<ButtonType> optType = confirmationAlert.showAndWait();
+                            if(confirmationAlert.isDontAskAgain() && optType.isPresent()) {
+                                Config.get().setConnectToResolve(optType.get() == ButtonType.YES);
+                            }
+                            if(optType.isPresent() && optType.get() == ButtonType.YES) {
+                                EventManager.get().post(new RequestConnectEvent());
+                            }
+                        });
+                    } else {
+                        Platform.runLater(() -> EventManager.get().post(new RequestConnectEvent()));
+                    }
+                    return;
+                }
+
+                DnsPaymentService dnsPaymentService = new DnsPaymentService(dnsPaymentHrn);
+                dnsPaymentService.setOnSucceeded(_ -> dnsPaymentService.getValue().ifPresent(dnsPayment -> setDnsPayment(dnsPayment)));
+                dnsPaymentService.setOnFailed(failEvent -> {
+                    if(failEvent.getSource().getException() != null && !(failEvent.getSource().getException().getCause() instanceof TimeoutException)) {
+                        AppServices.showErrorDialog("Validation failed for " + dnsPaymentHrn, Throwables.getRootCause(failEvent.getSource().getException()).getMessage());
+                    }
+                });
+                dnsPaymentService.start();
+                return;
+            }
+
+            if(sendController.getWalletForm().getWallet().hasPaymentCode()) {
+                try {
+                    PaymentCode paymentCode = new PaymentCode(newValue);
+                    Wallet recipientBip47Wallet = sendController.getWalletForm().getWallet().getChildWallet(paymentCode, sendController.getWalletForm().getWallet().getScriptType());
+                    if(recipientBip47Wallet == null && sendController.getWalletForm().getWallet().getScriptType() != ScriptType.P2PKH) {
+                        recipientBip47Wallet = sendController.getWalletForm().getWallet().getChildWallet(paymentCode, ScriptType.P2PKH);
+                    }
+
+                    if(recipientBip47Wallet != null) {
+                        PayNym payNym = PayNym.fromWallet(recipientBip47Wallet);
+                        Platform.runLater(() -> setPayNym(payNym));
+                    } else if(!paymentCode.equals(sendController.getWalletForm().getWallet().getPaymentCode())) {
+                        ButtonType previewType = new ButtonType("Preview Transaction", ButtonBar.ButtonData.YES);
+                        Optional<ButtonType> optButton = AppServices.showAlertDialog("Send notification transaction?", "This payment code is not yet linked with a notification transaction. Send a notification transaction?", Alert.AlertType.CONFIRMATION, ButtonType.CANCEL, previewType);
+                        if(optButton.isPresent() && optButton.get() == previewType) {
+                            Payment payment = new Payment(paymentCode.getNotificationAddress(), "Link " + paymentCode.toAbbreviatedString(), MINIMUM_P2PKH_OUTPUT_SATS, false);
+                            Platform.runLater(() -> EventManager.get().post(new SpendUtxoEvent(sendController.getWalletForm().getWallet(), List.of(payment), List.of(new byte[80]), paymentCode)));
+                        } else {
+                            Platform.runLater(() -> address.setText(""));
+                        }
+                    }
+                } catch(Exception e) {
+                    //ignore, not a payment code
+                }
+            }
+
+            try {
+                SilentPaymentAddress silentPaymentAddress = SilentPaymentAddress.from(newValue);
+                setSilentPaymentAddress(silentPaymentAddress);
+            } catch(Exception e) {
+                //ignore, not a silent payment address
+            }
+
+            revalidateAmount();
+            maxButton.setDisable(!isMaxButtonEnabled());
+            sendController.updateTransaction();
+
+            if(validationSupport != null) {
+                validationSupport.setErrorDecorationEnabled(true);
+            }
+        }
+    };
+
     @Override
     public void initialize(URL location, ResourceBundle resources) {
         EventManager.get().register(this);
@@ -210,6 +334,28 @@ public class PaymentController extends WalletFormController implements Initializ
             revalidateAmount();
         });
 
+        silentPaymentAddressProperty.addListener((observable, oldValue, silentPaymentAddress) -> {
+            revalidateAmount();
+        });
+
+        dnsPaymentProperty.addListener((observable, oldValue, dnsPayment) -> {
+            if(dnsPayment != null) {
+                MenuItem copyMenuItem = new MenuItem("Copy URI");
+                copyMenuItem.setOnAction(e -> {
+                    ClipboardContent content = new ClipboardContent();
+                    content.putString(dnsPayment.bitcoinURI().toURIString());
+                    Clipboard.getSystemClipboard().setContent(content);
+                });
+                address.setContextMenu(address.getCustomContextMenu(List.of(copyMenuItem)));
+            } else {
+                address.setContextMenu(address.getCustomContextMenu(Collections.emptyList()));
+            }
+
+            revalidateAmount();
+            maxButton.setDisable(!isMaxButtonEnabled());
+            sendController.updateTransaction();
+        });
+
         address.setTextFormatter(new TextFormatter<>(change -> {
             String controlNewText = change.getControlNewText();
             if(!controlNewText.equals(controlNewText.trim())) {
@@ -222,55 +368,8 @@ public class PaymentController extends WalletFormController implements Initializ
             return change;
         }));
 
-        address.textProperty().addListener((observable, oldValue, newValue) -> {
-            address.leftProperty().set(null);
-
-            if(payNymProperty.get() != null && !newValue.equals(payNymProperty.get().nymName())) {
-                payNymProperty.set(null);
-            }
-
-            try {
-                BitcoinURI bitcoinURI = new BitcoinURI(newValue);
-                Platform.runLater(() -> updateFromURI(bitcoinURI));
-                return;
-            } catch(Exception e) {
-                //ignore, not a URI
-            }
-
-            if(sendController.getWalletForm().getWallet().hasPaymentCode()) {
-                try {
-                    PaymentCode paymentCode = new PaymentCode(newValue);
-                    Wallet recipientBip47Wallet = sendController.getWalletForm().getWallet().getChildWallet(paymentCode, sendController.getWalletForm().getWallet().getScriptType());
-                    if(recipientBip47Wallet == null && sendController.getWalletForm().getWallet().getScriptType() != ScriptType.P2PKH) {
-                        recipientBip47Wallet = sendController.getWalletForm().getWallet().getChildWallet(paymentCode, ScriptType.P2PKH);
-                    }
-
-                    if(recipientBip47Wallet != null) {
-                        PayNym payNym = PayNym.fromWallet(recipientBip47Wallet);
-                        Platform.runLater(() -> setPayNym(payNym));
-                    } else if(!paymentCode.equals(sendController.getWalletForm().getWallet().getPaymentCode())) {
-                        ButtonType previewType = new ButtonType("Preview Transaction", ButtonBar.ButtonData.YES);
-                        Optional<ButtonType> optButton = AppServices.showAlertDialog("Send notification transaction?", "This payment code is not yet linked with a notification transaction. Send a notification transaction?", Alert.AlertType.CONFIRMATION, ButtonType.CANCEL, previewType);
-                        if(optButton.isPresent() && optButton.get() == previewType) {
-                            Payment payment = new Payment(paymentCode.getNotificationAddress(), "Link " + paymentCode.toAbbreviatedString(), MINIMUM_P2PKH_OUTPUT_SATS, false);
-                            Platform.runLater(() -> EventManager.get().post(new SpendUtxoEvent(sendController.getWalletForm().getWallet(), List.of(payment), List.of(new byte[80]), paymentCode)));
-                        } else {
-                            Platform.runLater(() -> address.setText(""));
-                        }
-                    }
-                } catch(Exception e) {
-                    //ignore, not a payment code
-                }
-            }
-
-            revalidateAmount();
-            maxButton.setDisable(!isMaxButtonEnabled());
-            sendController.updateTransaction();
-
-            if(validationSupport != null) {
-                validationSupport.setErrorDecorationEnabled(true);
-            }
-        });
+        address.textProperty().addListener(addressListener);
+        address.setContextMenu(address.getCustomContextMenu(Collections.emptyList()));
 
         label.textProperty().addListener((observable, oldValue, newValue) -> {
             maxButton.setDisable(!isMaxButtonEnabled());
@@ -328,6 +427,37 @@ public class PaymentController extends WalletFormController implements Initializ
         }
     }
 
+    public void setDnsPayment(DnsPayment dnsPayment) {
+        if(dnsPayment.hasAddress()) {
+            DnsPaymentCache.putDnsPayment(dnsPayment.bitcoinURI().getAddress(), dnsPayment);
+        } else if(dnsPayment.hasSilentPaymentAddress()) {
+            DnsPaymentCache.putDnsPayment(dnsPayment.bitcoinURI().getSilentPaymentAddress(), dnsPayment);
+            setSilentPaymentAddress(dnsPayment.bitcoinURI().getSilentPaymentAddress());
+        } else {
+            AppServices.showWarningDialog("No Address Provided", "The DNS payment instruction for " + dnsPayment.hrn() + " resolved correctly but did not contain a bitcoin address.");
+            return;
+        }
+
+        dnsPaymentProperty.set(dnsPayment);
+        address.setText(dnsPayment.hrn());
+        revalidate(address, addressListener);
+        address.leftProperty().set(getBitcoinCharacter());
+        if(label.getText().isEmpty() || (label.getText().startsWith("₿") && !label.getText().contains(" "))) {
+            label.setText(dnsPayment.toString());
+        }
+        label.requestFocus();
+    }
+
+    private void setSilentPaymentAddress(SilentPaymentAddress silentPaymentAddress) {
+        if(!sendController.getWalletForm().getWallet().canSendSilentPayments()) {
+            Platform.runLater(() -> AppServices.showErrorDialog("Silent Payments Unsupported", "This wallet does not support sending silent payments. Use a single signature software wallet."));
+            return;
+        }
+
+        silentPaymentAddressProperty.set(silentPaymentAddress);
+        label.requestFocus();
+    }
+
     private void updateOpenWallets() {
         updateOpenWallets(AppServices.get().getOpenWallets().keySet());
     }
@@ -399,6 +529,16 @@ public class PaymentController extends WalletFormController implements Initializ
     }
 
     private Address getRecipientAddress() throws InvalidAddressException {
+        SilentPaymentAddress silentPaymentAddress = silentPaymentAddressProperty.get();
+        if(silentPaymentAddress != null) {
+            return SilentPayment.getDummyAddress();
+        }
+
+        DnsPayment dnsPayment = dnsPaymentProperty.get();
+        if(dnsPayment != null && dnsPayment.hasAddress()) {
+            return dnsPayment.bitcoinURI().getAddress();
+        }
+
         PayNym payNym = payNymProperty.get();
         if(payNym == null) {
             return Address.fromString(address.getText());
@@ -516,7 +656,14 @@ public class PaymentController extends WalletFormController implements Initializ
             Long value = sendAll ? Long.valueOf(getRecipientDustThreshold() + 1) : getRecipientValueSats();
 
             if(!label.getText().isEmpty() && value != null && value >= getRecipientDustThreshold()) {
-                Payment payment = new Payment(recipientAddress, label.getText(), value, sendAll);
+                Payment payment;
+                SilentPaymentAddress silentPaymentAddress = silentPaymentAddressProperty.get();
+                if(silentPaymentAddress != null) {
+                    payment = new SilentPayment(silentPaymentAddress, label.getText(), value, sendAll);
+                } else {
+                    payment = new Payment(recipientAddress, label.getText(), value, sendAll);
+                }
+
                 if(address.getUserData() != null) {
                     payment.setType((Payment.Type)address.getUserData());
                 }
@@ -533,7 +680,14 @@ public class PaymentController extends WalletFormController implements Initializ
     public void setPayment(Payment payment) {
         if(getRecipientValueSats() == null || payment.getAmount() != getRecipientValueSats()) {
             if(payment.getAddress() != null) {
-                address.setText(payment.getAddress().toString());
+                DnsPayment dnsPayment = DnsPaymentCache.getDnsPayment(payment);
+                if(dnsPayment != null) {
+                    address.setText(dnsPayment.hrn());
+                } else if(payment instanceof SilentPayment silentPayment) {
+                    address.setText(silentPayment.getSilentPaymentAddress().getAddress());
+                } else {
+                    address.setText(payment.getAddress().toString());
+                }
                 address.setUserData(payment.getType());
             }
             if(payment.getLabel() != null && !label.getText().equals(payment.getLabel())) {
@@ -565,6 +719,8 @@ public class PaymentController extends WalletFormController implements Initializ
 
         dustAmountProperty.set(false);
         payNymProperty.set(null);
+        dnsPaymentProperty.set(null);
+        silentPaymentAddressProperty.set(null);
     }
 
     public void setMaxInput(ActionEvent event) {
@@ -625,7 +781,7 @@ public class PaymentController extends WalletFormController implements Initializ
             setRecipientValueSats(bitcoinURI.getAmount());
             setFiatAmount(AppServices.getFiatCurrencyExchangeRate(), bitcoinURI.getAmount());
         }
-        if(bitcoinURI.getPayjoinUrl() != null) {
+        if(bitcoinURI.getAddress() != null && bitcoinURI.getPayjoinUrl() != null) {
             AppServices.addPayjoinURI(bitcoinURI);
         }
         sendController.updateTransaction();
@@ -676,10 +832,33 @@ public class PaymentController extends WalletFormController implements Initializ
     public static Glyph getPayNymGlyph() {
         Glyph payNymGlyph = new Glyph(FontAwesome5.FONT_NAME, FontAwesome5.Glyph.ROBOT);
         payNymGlyph.getStyleClass().add("paynym-icon");
-        payNymGlyph.setFontSize(12);
+        payNymGlyph.setFontSize(10);
         return payNymGlyph;
     }
 
+    public static Node getBitcoinCharacter() {
+        try {
+            URL url;
+            if(Config.get().getTheme() == Theme.DARK) {
+                url = AppServices.class.getResource("/image/bitcoin-character-invert.svg");
+            } else {
+                url = AppServices.class.getResource("/image/bitcoin-character.svg");
+            }
+            if(url != null) {
+                SVGImage svgImage = SVGLoader.load(url);
+                HBox hBox = new HBox();
+                hBox.setAlignment(Pos.CENTER);
+                hBox.getChildren().add(svgImage);
+                hBox.setPadding(new Insets(0, 2, 0, 4));
+                return hBox;
+            }
+        } catch(Exception e) {
+            log.error("Could not load bitcoin character");
+        }
+
+        return null;
+    }
+
     public static Glyph getNfcCardGlyph() {
         Glyph nfcCardGlyph = new Glyph(FontAwesome5.FONT_NAME, FontAwesome5.Glyph.WIFI);
         nfcCardGlyph.getStyleClass().add("nfccard-icon");
@@ -723,4 +902,23 @@ public class PaymentController extends WalletFormController implements Initializ
     public void openWallets(OpenWalletsEvent event) {
         updateOpenWallets(event.getWallets());
     }
+
+    private static class DnsPaymentService extends Service<Optional<DnsPayment>> {
+        private final String hrn;
+
+        public DnsPaymentService(String hrn) {
+            this.hrn = hrn;
+        }
+
+        @Override
+        protected Task<Optional<DnsPayment>> createTask() {
+            return new Task<>() {
+                @Override
+                protected Optional<DnsPayment> call() throws Exception {
+                    DnsPaymentResolver resolver = new DnsPaymentResolver(hrn);
+                    return resolver.resolve();
+                }
+            };
+        }
+    }
 }

src/main/java/com/sparrowwallet/sparrow/wallet/SendController.java

@@ -6,12 +6,12 @@ import com.sparrowwallet.drongo.KeyPurpose;
 import com.sparrowwallet.drongo.Network;
 import com.sparrowwallet.drongo.SecureString;
 import com.sparrowwallet.drongo.address.Address;
-import com.sparrowwallet.drongo.address.InvalidAddressException;
 import com.sparrowwallet.drongo.bip47.PaymentCode;
 import com.sparrowwallet.drongo.bip47.SecretPoint;
 import com.sparrowwallet.drongo.crypto.ECKey;
 import com.sparrowwallet.drongo.protocol.*;
 import com.sparrowwallet.drongo.psbt.PSBT;
+import com.sparrowwallet.drongo.silentpayments.SilentPayment;
 import com.sparrowwallet.drongo.wallet.*;
 import com.sparrowwallet.sparrow.*;
 import com.sparrowwallet.sparrow.control.*;
@@ -326,7 +326,7 @@ public class SendController extends WalletFormController implements Initializabl
         recentBlocksView.visibleProperty().bind(Bindings.equal(feeRatesSelectionProperty, FeeRatesSelection.RECENT_BLOCKS));
         List<BlockSummary> blockSummaries = AppServices.getBlockSummaries().values().stream().sorted().toList();
         if(!blockSummaries.isEmpty()) {
-            recentBlocksView.update(blockSummaries, AppServices.getDefaultFeeRate());
+            recentBlocksView.update(blockSummaries, AppServices.getNextBlockMedianFeeRate());
         }
 
         feeRatesSelectionProperty.addListener((_, oldValue, newValue) -> {
@@ -484,18 +484,41 @@ public class SendController extends WalletFormController implements Initializabl
         validationSupport.setValidationDecorator(new StyleClassValidationDecoration());
         validationSupport.registerValidator(fee, Validator.combine(
                 (Control c, String newValue) -> ValidationResult.fromErrorIf( c, "Insufficient Inputs", userFeeSet.get() && insufficientInputsProperty.get()),
-                (Control c, String newValue) -> ValidationResult.fromErrorIf( c, "Insufficient Fee", getFeeValueSats() != null && getFeeValueSats() == 0),
                 (Control c, String newValue) -> ValidationResult.fromErrorIf( c, "Insufficient Fee Rate", isInsufficientFeeRate())
         ));
 
         validationSupport.setErrorDecorationEnabled(false);
     }
 
-    public Tab addPaymentTab() {
+    public void addPaymentTab() {
+        if(Config.get().getSuggestSendToMany() == null && openSendToMany()) {
+            return;
+        }
+
         Tab tab = getPaymentTab();
         paymentTabs.getTabs().add(tab);
         paymentTabs.getSelectionModel().select(tab);
-        return tab;
+    }
+
+    private boolean openSendToMany() {
+        try {
+            List<Payment> payments = getPayments();
+            if(payments.size() == 3) {
+                ConfirmationAlert confirmationAlert = new ConfirmationAlert("Open Send To Many?", "Open the Tools > Send To Many dialog to add multiple payments?", ButtonType.NO, ButtonType.YES);
+                Optional<ButtonType> optType = confirmationAlert.showAndWait();
+                if(confirmationAlert.isDontAskAgain() && optType.isPresent()) {
+                    Config.get().setSuggestSendToMany(optType.get() == ButtonType.YES);
+                }
+                if(optType.isPresent() && optType.get() == ButtonType.YES) {
+                    Platform.runLater(() -> EventManager.get().post(new RequestSendToManyEvent(payments)));
+                    return true;
+                }
+            }
+        } catch(Exception e) {
+            //ignore
+        }
+
+        return false;
     }
 
     public Tab getPaymentTab() {
@@ -582,18 +605,24 @@ public class SendController extends WalletFormController implements Initializabl
         try {
             List<Payment> payments = transactionPayments != null ? transactionPayments : getPayments();
             updateOptimizationButtons(payments);
-            if(!userFeeSet.get() || (getFeeValueSats() != null && getFeeValueSats() > 0)) {
+            if(!userFeeSet.get() || getFeeValueSats() != null) {
                 Wallet wallet = getWalletForm().getWallet();
                 Long userFee = userFeeSet.get() ? getFeeValueSats() : null;
                 double feeRate = getUserFeeRate();
+                double minRelayFeeRate = AppServices.getMinimumRelayFeeRate();
                 Integer currentBlockHeight = AppServices.getCurrentBlockHeight();
                 boolean groupByAddress = Config.get().isGroupByAddress();
                 boolean includeMempoolOutputs = Config.get().isIncludeMempoolOutputs();
                 BlockTransaction replacedTransaction = replacedTransactionProperty.get();
 
+                //Disable RBF for silent payments, as we can't guarantee RBF won't be attempted on another device without knowledge to recompute the address if necessary
+                boolean allowRbf = (replacedTransaction == null || replacedTransaction.getTransaction().isReplaceByFee())
+                        && payments.stream().noneMatch(payment -> payment instanceof SilentPayment);
+
                 walletTransactionService = new WalletTransactionService(addressNodeMap, wallet, getUtxoSelectors(payments), getTxoFilters(),
                         payments, opReturnsList, excludedChangeNodes,
-                        feeRate, getMinimumFeeRate(), userFee, currentBlockHeight, groupByAddress, includeMempoolOutputs, replacedTransaction);
+                        feeRate, getMinimumFeeRate(), minRelayFeeRate, userFee,
+                        currentBlockHeight, groupByAddress, includeMempoolOutputs, replacedTransaction, allowRbf);
                 walletTransactionService.setOnSucceeded(event -> {
                     if(!walletTransactionService.isIgnoreResult()) {
                         walletTransactionProperty.setValue(walletTransactionService.getValue());
@@ -628,12 +657,12 @@ public class SendController extends WalletFormController implements Initializabl
 
                 walletTransactionService.start();
             }
-        } catch(InvalidAddressException | IllegalStateException e) {
+        } catch(IllegalStateException e) {
             walletTransactionProperty.setValue(null);
         }
     }
 
-    private List<UtxoSelector> getUtxoSelectors(List<Payment> payments) throws InvalidAddressException {
+    private List<UtxoSelector> getUtxoSelectors(List<Payment> payments) {
         if(utxoSelectorProperty.get() != null) {
             return List.of(utxoSelectorProperty.get());
         }
@@ -664,17 +693,21 @@ public class SendController extends WalletFormController implements Initializabl
         private final Set<WalletNode> excludedChangeNodes;
         private final double feeRate;
         private final double longTermFeeRate;
+        private final double minRelayFeeRate;
         private final Long fee;
         private final Integer currentBlockHeight;
         private final boolean groupByAddress;
         private final boolean includeMempoolOutputs;
         private final BlockTransaction replacedTransaction;
+        private final boolean allowRbf;
         private boolean ignoreResult;
 
         public WalletTransactionService(Map<Wallet, Map<Address, WalletNode>> addressNodeMap,
                                         Wallet wallet, List<UtxoSelector> utxoSelectors, List<TxoFilter> txoFilters,
                                         List<Payment> payments, List<byte[]> opReturns, Set<WalletNode> excludedChangeNodes,
-                                        double feeRate, double longTermFeeRate, Long fee, Integer currentBlockHeight, boolean groupByAddress, boolean includeMempoolOutputs, BlockTransaction replacedTransaction) {
+                                        double feeRate, double longTermFeeRate, double minRelayFeeRate, Long fee,
+                                        Integer currentBlockHeight, boolean groupByAddress, boolean includeMempoolOutputs,
+                                        BlockTransaction replacedTransaction, boolean allowRbf) {
             this.addressNodeMap = addressNodeMap;
             this.wallet = wallet;
             this.utxoSelectors = utxoSelectors;
@@ -684,11 +717,13 @@ public class SendController extends WalletFormController implements Initializabl
             this.excludedChangeNodes = excludedChangeNodes;
             this.feeRate = feeRate;
             this.longTermFeeRate = longTermFeeRate;
+            this.minRelayFeeRate = minRelayFeeRate;
             this.fee = fee;
             this.currentBlockHeight = currentBlockHeight;
             this.groupByAddress = groupByAddress;
             this.includeMempoolOutputs = includeMempoolOutputs;
             this.replacedTransaction = replacedTransaction;
+            this.allowRbf = allowRbf;
         }
 
         @Override
@@ -698,7 +733,8 @@ public class SendController extends WalletFormController implements Initializabl
                     try {
                         return getWalletTransaction();
                     } catch(InsufficientFundsException e) {
-                        if(e.getTargetValue() != null && replacedTransaction != null && utxoSelectors.size() == 1 && utxoSelectors.get(0) instanceof PresetUtxoSelector presetUtxoSelector) {
+                        if(e.getTargetValue() != null && replacedTransaction != null && wallet.isSafeToAddInputsOrOutputs(replacedTransaction)
+                                && utxoSelectors.size() == 1 && utxoSelectors.getFirst() instanceof PresetUtxoSelector presetUtxoSelector) {
                             //Creating RBF transaction - include additional UTXOs if available to pay desired fee
                             List<TxoFilter> filters = new ArrayList<>(txoFilters);
                             filters.add(presetUtxoSelector.asExcludeTxoFilter());
@@ -707,7 +743,7 @@ public class SendController extends WalletFormController implements Initializabl
                             Collections.shuffle(outputGroups);
 
                             while(!outputGroups.isEmpty() && presetUtxoSelector.getPresetUtxos().stream().mapToLong(BlockTransactionHashIndex::getValue).sum() < e.getTargetValue()) {
-                                OutputGroup outputGroup = outputGroups.remove(0);
+                                OutputGroup outputGroup = outputGroups.removeFirst();
                                 for(BlockTransactionHashIndex utxo : outputGroup.getUtxos()) {
                                     presetUtxoSelector.getPresetUtxos().add(utxo);
                                 }
@@ -721,12 +757,16 @@ public class SendController extends WalletFormController implements Initializabl
                 }
 
                 private WalletTransaction getWalletTransaction() throws InsufficientFundsException {
-                    updateMessage("Selecting UTXOs...");
-                    WalletTransaction walletTransaction = wallet.createWalletTransaction(utxoSelectors, txoFilters, payments, opReturns, excludedChangeNodes,
-                            feeRate, longTermFeeRate, fee, currentBlockHeight, groupByAddress, includeMempoolOutputs);
-                    updateMessage("Deriving keys...");
-                    walletTransaction.updateAddressNodeMap(addressNodeMap, walletTransaction.getWallet());
-                    return walletTransaction;
+                    try {
+                        updateMessage("Selecting UTXOs...");
+                        WalletTransaction walletTransaction = wallet.createWalletTransaction(utxoSelectors, txoFilters, payments, opReturns, excludedChangeNodes,
+                                feeRate, longTermFeeRate, minRelayFeeRate, fee, currentBlockHeight, groupByAddress, includeMempoolOutputs, allowRbf);
+                        updateMessage("Deriving keys...");
+                        walletTransaction.updateAddressNodeMap(addressNodeMap, walletTransaction.getWallet());
+                        return walletTransaction;
+                    } finally {
+                        updateMessage("");
+                    }
                 }
             };
         }
@@ -854,7 +894,7 @@ public class SendController extends WalletFormController implements Initializabl
      * @return the fee rate to use when constructing a transaction
      */
     public Double getUserFeeRate() {
-        return (userFeeSet.get() ? Transaction.DEFAULT_MIN_RELAY_FEE : getFeeRate());
+        return (userFeeSet.get() ? AppServices.getMinimumRelayFeeRate() : getFeeRate());
     }
 
     public Double getFeeRate() {
@@ -918,7 +958,6 @@ public class SendController extends WalletFormController implements Initializabl
 
     private void setFeeRatePriority(Double feeRateAmt) {
         Map<Integer, Double> targetBlocksFeeRates = getTargetBlocksFeeRates();
-        Integer targetBlocks = getTargetBlocks(feeRateAmt);
         if(targetBlocksFeeRates.get(Integer.MAX_VALUE) != null) {
             Double minFeeRate = targetBlocksFeeRates.get(Integer.MAX_VALUE);
             if(minFeeRate > 1.0 && feeRateAmt < minFeeRate) {
@@ -939,9 +978,10 @@ public class SendController extends WalletFormController implements Initializabl
             }
         }
 
+        Integer targetBlocks = getTargetBlocks(feeRateAmt);
         if(targetBlocks != null) {
             if(targetBlocks < FeeRatesSource.BLOCKS_IN_HALF_HOUR) {
-                Double maxFeeRate = FEE_RATES_RANGE.get(FEE_RATES_RANGE.size() - 1).doubleValue();
+                Double maxFeeRate = AppServices.getFeeRatesRange().getLast();
                 Double highestBlocksRate = targetBlocksFeeRates.get(TARGET_BLOCKS_RANGE.get(0));
                 if(highestBlocksRate < maxFeeRate && feeRateAmt > (highestBlocksRate + ((maxFeeRate - highestBlocksRate) / 10))) {
                     feeRatePriority.setText("Overpaid");
@@ -1205,7 +1245,7 @@ public class SendController extends WalletFormController implements Initializabl
 
     public void broadcastNotification(Wallet decryptedWallet) {
         try {
-            PaymentCode paymentCode = decryptedWallet.getPaymentCode();
+            PaymentCode paymentCode = decryptedWallet.isMasterWallet() ? decryptedWallet.getPaymentCode() : decryptedWallet.getMasterWallet().getPaymentCode();
             PaymentCode externalPaymentCode = paymentCodeProperty.get();
             WalletTransaction walletTransaction = walletTransactionProperty.get();
             WalletNode input0Node = walletTransaction.getSelectedUtxos().entrySet().iterator().next().getValue();
@@ -1219,11 +1259,13 @@ public class SendController extends WalletFormController implements Initializabl
             List<UtxoSelector> utxoSelectors = List.of(new PresetUtxoSelector(walletTransaction.getSelectedUtxos().keySet(), true, false));
             Long userFee = userFeeSet.get() ? getFeeValueSats() : null;
             double feeRate = getUserFeeRate();
+            Double minRelayFeeRate = AppServices.getMinimumRelayFeeRate();
             Integer currentBlockHeight = AppServices.getCurrentBlockHeight();
             boolean groupByAddress = Config.get().isGroupByAddress();
             boolean includeMempoolOutputs = Config.get().isIncludeMempoolOutputs();
 
-            WalletTransaction finalWalletTx = decryptedWallet.createWalletTransaction(utxoSelectors, getTxoFilters(), walletTransaction.getPayments(), List.of(blindedPaymentCode), excludedChangeNodes, feeRate, getMinimumFeeRate(), userFee, currentBlockHeight, groupByAddress, includeMempoolOutputs);
+            WalletTransaction finalWalletTx = decryptedWallet.createWalletTransaction(utxoSelectors, getTxoFilters(), walletTransaction.getPayments(), List.of(blindedPaymentCode),
+                    excludedChangeNodes, feeRate, getMinimumFeeRate(), minRelayFeeRate, userFee, currentBlockHeight, groupByAddress, includeMempoolOutputs, true);
             PSBT psbt = finalWalletTx.createPSBT();
             decryptedWallet.sign(psbt);
             decryptedWallet.finalise(psbt);
@@ -1412,6 +1454,12 @@ public class SendController extends WalletFormController implements Initializabl
         }
         feeRange.updateTrackHighlight();
 
+        if(event.getNextBlockMedianFeeRate() != null) {
+            recentBlocksView.updateFeeRate(event.getNextBlockMedianFeeRate());
+        } else {
+            recentBlocksView.updateFeeRate(event.getTargetBlockFeeRates());
+        }
+
         if(updateDefaultFeeRate) {
             if(getFeeRate() != null && Long.valueOf((long)getFallbackFeeRate()).equals(getFeeRate().longValue())) {
                 setDefaultFeeRate();
@@ -1434,7 +1482,7 @@ public class SendController extends WalletFormController implements Initializabl
 
     @Subscribe
     public void blockSummary(BlockSummaryEvent event) {
-        Platform.runLater(() -> recentBlocksView.update(AppServices.getBlockSummaries().values().stream().sorted().toList(), AppServices.getDefaultFeeRate()));
+        Platform.runLater(() -> recentBlocksView.update(AppServices.getBlockSummaries().values().stream().sorted().toList(), AppServices.getNextBlockMedianFeeRate()));
     }
 
     @Subscribe
@@ -1476,7 +1524,7 @@ public class SendController extends WalletFormController implements Initializabl
             notificationButton.setVisible(isNotificationTransaction);
             notificationButton.setDefaultButton(isNotificationTransaction);
 
-            setInputFieldsDisabled(isNotificationTransaction, false);
+            setInputFieldsDisabled(!event.allowPaymentChanges(), false);
         }
     }
 
@@ -1605,6 +1653,14 @@ public class SendController extends WalletFormController implements Initializabl
         recentBlocksView.updateFeeRatesSource(event.getFeeRateSource());
     }
 
+    @Subscribe
+    public void connection(ConnectionEvent event) {
+        if(!Objects.equals(event.getMinimumRelayFeeRate(), event.getPreviousMinimumRelayFeeRate())) {
+            feeRange.updateFeeRange(event.getMinimumRelayFeeRate(), event.getPreviousMinimumRelayFeeRate());
+            updateTransaction();
+        }
+    }
+
     private class PrivacyAnalysisTooltip extends VBox {
         private final List<Label> analysisLabels = new ArrayList<>();
 

src/main/java/com/sparrowwallet/sparrow/wallet/SettingsController.java

@@ -41,8 +41,11 @@ import java.io.IOException;
 import java.net.URL;
 import java.nio.charset.StandardCharsets;
 import java.util.*;
+import java.util.regex.Matcher;
 import java.util.stream.Collectors;
 
+import static com.sparrowwallet.drongo.OutputDescriptor.KEY_ORIGIN_PATTERN;
+import static com.sparrowwallet.drongo.OutputDescriptor.XPUB_PATTERN;
 import static com.sparrowwallet.sparrow.AppServices.showErrorDialog;
 import static com.sparrowwallet.sparrow.AppServices.showWarningDialog;
 
@@ -455,6 +458,26 @@ public class SettingsController extends WalletFormController implements Initiali
                 AppServices.showWarningDialog("Legacy multisig wallet detected", "Sparrow supports BIP67 compatible multisig wallets only.\n\nThe public keys will be lexicographically sorted, and the output descriptor represented with sortedmulti.");
             }
 
+            Matcher matcher = XPUB_PATTERN.matcher(text.get());
+            while(matcher.find()) {
+                String keyDerivationPath = null;
+                if(matcher.group(1) != null) {
+                    Matcher keyOriginMatcher = KEY_ORIGIN_PATTERN.matcher(matcher.group(1));
+                    if(keyOriginMatcher.matches()) {
+                        keyDerivationPath = keyOriginMatcher.group(2);
+                    }
+                }
+                String extKey = matcher.group(2);
+                String childDerivationPath = matcher.group(3);
+
+                if(ExtendedKey.Header.getHeaders(Network.get()).stream().anyMatch(header -> header.isPrivateKey() && extKey.startsWith(header.name())) &&
+                        (keyDerivationPath != null || (childDerivationPath != null && !(childDerivationPath.equals("/0/*") || childDerivationPath.equals("/1/*") || childDerivationPath.equals("/<0;1>/*"))))) {
+                    AppServices.showWarningDialog("Private extended key detected", "Sparrow will convert the provided private key to a public key for use in a watch only wallet.\n\nTo import a private key, use the Master Private Key option when creating a Software Wallet.");
+                } else if(childDerivationPath != null && !(childDerivationPath.endsWith("/0/*") || childDerivationPath.endsWith("/1/*") || childDerivationPath.endsWith("/<0;1>/*"))) {
+                    AppServices.showWarningDialog("Non standard child derivation detected", "Sparrow does not support non-BIP32 wallets without standard receive and change chains.\n\nThe provided descriptor will be amended if necessary.");
+                }
+            }
+
             setDescriptorText(text.get().replace("\n", ""));
         }
     }

src/main/java/module-info.java

@@ -27,6 +27,7 @@ open module com.sparrowwallet.sparrow {
     requires com.google.gson;
     requires org.jdbi.v3.core;
     requires org.jdbi.v3.sqlobject;
+    requires io.leangen.geantyref;
     requires org.flywaydb.core;
     requires com.zaxxer.hikari;
     requires com.h2database;
@@ -56,4 +57,5 @@ open module com.sparrowwallet.sparrow {
     requires com.sparrowwallet.tern;
     requires com.sparrowwallet.lark;
     requires com.sun.jna;
+    requires io.github.doblon8.jzbar;
 }

src/main/java/net/sourceforge/zbar/Config.java

@@ -1,76 +0,0 @@
-/*------------------------------------------------------------------------
- *  Config
- *
- *  Copyright 2010 (c) Jeff Brown <spadix@users.sourceforge.net>
- *
- *  This file is part of the ZBar Bar Code Reader.
- *
- *  The ZBar Bar Code Reader is free software; you can redistribute it
- *  and/or modify it under the terms of the GNU Lesser Public License as
- *  published by the Free Software Foundation; either version 2.1 of
- *  the License, or (at your option) any later version.
- *
- *  The ZBar Bar Code Reader is distributed in the hope that it will be
- *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser Public License
- *  along with the ZBar Bar Code Reader; if not, write to the Free
- *  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- *  Boston, MA  02110-1301  USA
- *
- *  http://sourceforge.net/projects/zbar
- *------------------------------------------------------------------------*/
-
-package net.sourceforge.zbar;
-
-/**
- * Decoder configuration options.
- */
-public class Config {
-    /**
-     * Enable symbology/feature.
-     */
-    public static final int ENABLE = 0;
-    /**
-     * Enable check digit when optional.
-     */
-    public static final int ADD_CHECK = 1;
-    /**
-     * Return check digit when present.
-     */
-    public static final int EMIT_CHECK = 2;
-    /**
-     * Enable full ASCII character set.
-     */
-    public static final int ASCII = 3;
-
-    /**
-     * Minimum data length for valid decode.
-     */
-    public static final int MIN_LEN = 0x20;
-    /**
-     * Maximum data length for valid decode.
-     */
-    public static final int MAX_LEN = 0x21;
-
-    /**
-     * Required video consistency frames.
-     */
-    public static final int UNCERTAINTY = 0x40;
-
-    /**
-     * Enable scanner to collect position data.
-     */
-    public static final int POSITION = 0x80;
-
-    /**
-     * Image scanner vertical scan density.
-     */
-    public static final int X_DENSITY = 0x100;
-    /**
-     * Image scanner horizontal scan density.
-     */
-    public static final int Y_DENSITY = 0x101;
-}

src/main/java/net/sourceforge/zbar/Image.java

@@ -1,197 +0,0 @@
-/*------------------------------------------------------------------------
- *  Image
- *
- *  Copyright 2007-2010 (c) Jeff Brown <spadix@users.sourceforge.net>
- *
- *  This file is part of the ZBar Bar Code Reader.
- *
- *  The ZBar Bar Code Reader is free software; you can redistribute it
- *  and/or modify it under the terms of the GNU Lesser Public License as
- *  published by the Free Software Foundation; either version 2.1 of
- *  the License, or (at your option) any later version.
- *
- *  The ZBar Bar Code Reader is distributed in the hope that it will be
- *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser Public License
- *  along with the ZBar Bar Code Reader; if not, write to the Free
- *  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- *  Boston, MA  02110-1301  USA
- *
- *  http://sourceforge.net/projects/zbar
- *------------------------------------------------------------------------*/
-
-package net.sourceforge.zbar;
-
-import java.io.Closeable;
-
-/**
- * stores image data samples along with associated format and size
- * metadata.
- */
-public class Image implements Closeable {
-    static {
-        init();
-    }
-
-    /**
-     * C pointer to a zbar_symbol_t.
-     */
-    private long peer;
-    private Object data;
-
-    public Image() {
-        peer = create();
-    }
-
-    public Image(int width, int height) {
-        this();
-        setSize(width, height);
-    }
-
-    public Image(int width, int height, String format) {
-        this();
-        setSize(width, height);
-        setFormat(format);
-    }
-
-    public Image(String format) {
-        this();
-        setFormat(format);
-    }
-
-    Image(long peer) {
-        this.peer = peer;
-    }
-
-    private static native void init();
-
-    /**
-     * Create an associated peer instance.
-     */
-    private native long create();
-
-    public void close() {
-        destroy();
-    }
-
-    /**
-     * Clean up native data associated with an instance.
-     */
-    public synchronized void destroy() {
-        if(peer != 0) {
-            destroy(peer);
-            peer = 0;
-        }
-    }
-
-    /**
-     * Destroy the associated peer instance.
-     */
-    private native void destroy(long peer);
-
-    /**
-     * Image format conversion.
-     *
-     * @returns a @em new image with the sample data from the original
-     * image converted to the requested format fourcc.  the original
-     * image is unaffected.
-     */
-    public Image convert(String format) {
-        long newpeer = convert(peer, format);
-        if(newpeer == 0) {
-            return (null);
-        }
-        return (new Image(newpeer));
-    }
-
-    private native long convert(long peer, String format);
-
-    /**
-     * Retrieve the image format fourcc.
-     */
-    public native String getFormat();
-
-    /**
-     * Specify the fourcc image format code for image sample data.
-     */
-    public native void setFormat(String format);
-
-    /**
-     * Retrieve a "sequence" (page/frame) number associated with this
-     * image.
-     */
-    public native int getSequence();
-
-    /**
-     * Associate a "sequence" (page/frame) number with this image.
-     */
-    public native void setSequence(int seq);
-
-    /**
-     * Retrieve the width of the image.
-     */
-    public native int getWidth();
-
-    /**
-     * Retrieve the height of the image.
-     */
-    public native int getHeight();
-
-    /**
-     * Retrieve the size of the image.
-     */
-    public native int[] getSize();
-
-    /**
-     * Specify the pixel size of the image.
-     */
-    public native void setSize(int[] size);
-
-    /**
-     * Specify the pixel size of the image.
-     */
-    public native void setSize(int width, int height);
-
-    /**
-     * Retrieve the crop region of the image.
-     */
-    public native int[] getCrop();
-
-    /**
-     * Specify the crop region of the image.
-     */
-    public native void setCrop(int[] crop);
-
-    /**
-     * Specify the crop region of the image.
-     */
-    public native void setCrop(int x, int y, int width, int height);
-
-    /**
-     * Retrieve the image sample data.
-     */
-    public native byte[] getData();
-
-    /**
-     * Specify image sample data.
-     */
-    public native void setData(byte[] data);
-
-    /**
-     * Specify image sample data.
-     */
-    public native void setData(int[] data);
-
-    /**
-     * Retrieve the decoded results associated with this image.
-     */
-    public SymbolSet getSymbols() {
-        return (new SymbolSet(getSymbols(peer)));
-    }
-
-    private native long getSymbols(long peer);
-
-}

src/main/java/net/sourceforge/zbar/ImageScanner.java

@@ -1,110 +0,0 @@
-/*------------------------------------------------------------------------
- *  ImageScanner
- *
- *  Copyright 2007-2010 (c) Jeff Brown <spadix@users.sourceforge.net>
- *
- *  This file is part of the ZBar Bar Code Reader.
- *
- *  The ZBar Bar Code Reader is free software; you can redistribute it
- *  and/or modify it under the terms of the GNU Lesser Public License as
- *  published by the Free Software Foundation; either version 2.1 of
- *  the License, or (at your option) any later version.
- *
- *  The ZBar Bar Code Reader is distributed in the hope that it will be
- *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser Public License
- *  along with the ZBar Bar Code Reader; if not, write to the Free
- *  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- *  Boston, MA  02110-1301  USA
- *
- *  http://sourceforge.net/projects/zbar
- *------------------------------------------------------------------------*/
-
-package net.sourceforge.zbar;
-
-import java.io.Closeable;
-
-/**
- * Read barcodes from 2-D images.
- */
-public class ImageScanner implements Closeable {
-    static {
-        init();
-    }
-
-    /**
-     * C pointer to a zbar_image_scanner_t.
-     */
-    private long peer;
-
-    public ImageScanner() {
-        peer = create();
-    }
-
-    private static native void init();
-
-    /**
-     * Create an associated peer instance.
-     */
-    private native long create();
-
-    public void close() {
-        destroy();
-    }
-
-    /**
-     * Clean up native data associated with an instance.
-     */
-    public synchronized void destroy() {
-        if(peer != 0) {
-            destroy(peer);
-            peer = 0;
-        }
-    }
-
-    /**
-     * Destroy the associated peer instance.
-     */
-    private native void destroy(long peer);
-
-    /**
-     * Set config for indicated symbology (0 for all) to specified value.
-     */
-    public native void setConfig(int symbology, int config, int value) throws IllegalArgumentException;
-
-    /**
-     * Parse configuration string and apply to image scanner.
-     */
-    public native void parseConfig(String config);
-
-    /**
-     * Enable or disable the inter-image result cache (default disabled).
-     * Mostly useful for scanning video frames, the cache filters duplicate
-     * results from consecutive images, while adding some consistency
-     * checking and hysteresis to the results.  Invoking this method also
-     * clears the cache.
-     */
-    public native void enableCache(boolean enable);
-
-    /**
-     * Retrieve decode results for last scanned image.
-     *
-     * @returns the SymbolSet result container
-     */
-    public SymbolSet getResults() {
-        return (new SymbolSet(getResults(peer)));
-    }
-
-    private native long getResults(long peer);
-
-    /**
-     * Scan for symbols in provided Image.
-     * The image format must currently be "Y800" or "GRAY".
-     *
-     * @returns the number of symbols successfully decoded from the image.
-     */
-    public native int scanImage(Image image);
-}

src/main/java/net/sourceforge/zbar/Modifier.java

@@ -1,44 +0,0 @@
-/*------------------------------------------------------------------------
- *  Modifier
- *
- *  Copyright 2010 (c) Jeff Brown <spadix@users.sourceforge.net>
- *
- *  This file is part of the ZBar Bar Code Reader.
- *
- *  The ZBar Bar Code Reader is free software; you can redistribute it
- *  and/or modify it under the terms of the GNU Lesser Public License as
- *  published by the Free Software Foundation; either version 2.1 of
- *  the License, or (at your option) any later version.
- *
- *  The ZBar Bar Code Reader is distributed in the hope that it will be
- *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser Public License
- *  along with the ZBar Bar Code Reader; if not, write to the Free
- *  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- *  Boston, MA  02110-1301  USA
- *
- *  http://sourceforge.net/projects/zbar
- *------------------------------------------------------------------------*/
-
-package net.sourceforge.zbar;
-
-/**
- * Decoder symbology modifiers.
- */
-public class Modifier {
-    /**
-     * barcode tagged as GS1 (EAN.UCC) reserved
-     * (eg, FNC1 before first data character).
-     * data may be parsed as a sequence of GS1 AIs
-     */
-    public static final int GS1 = 0;
-
-    /**
-     * barcode tagged as AIM reserved
-     * (eg, FNC1 after first character or digit pair)
-     */
-    public static final int AIM = 1;
-}

src/main/java/net/sourceforge/zbar/Orientation.java

@@ -1,52 +0,0 @@
-/*------------------------------------------------------------------------
- *  Orientation
- *
- *  Copyright 2010 (c) Jeff Brown <spadix@users.sourceforge.net>
- *
- *  This file is part of the ZBar Bar Code Reader.
- *
- *  The ZBar Bar Code Reader is free software; you can redistribute it
- *  and/or modify it under the terms of the GNU Lesser Public License as
- *  published by the Free Software Foundation; either version 2.1 of
- *  the License, or (at your option) any later version.
- *
- *  The ZBar Bar Code Reader is distributed in the hope that it will be
- *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser Public License
- *  along with the ZBar Bar Code Reader; if not, write to the Free
- *  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- *  Boston, MA  02110-1301  USA
- *
- *  http://sourceforge.net/projects/zbar
- *------------------------------------------------------------------------*/
-
-package net.sourceforge.zbar;
-
-/**
- * Decoded symbol coarse orientation.
- */
-public class Orientation {
-    /**
-     * Unable to determine orientation.
-     */
-    public static final int UNKNOWN = -1;
-    /**
-     * Upright, read left to right.
-     */
-    public static final int UP = 0;
-    /**
-     * sideways, read top to bottom
-     */
-    public static final int RIGHT = 1;
-    /**
-     * upside-down, read right to left
-     */
-    public static final int DOWN = 2;
-    /**
-     * sideways, read bottom to top
-     */
-    public static final int LEFT = 3;
-}

src/main/java/net/sourceforge/zbar/Symbol.java

@@ -1,265 +0,0 @@
-/*------------------------------------------------------------------------
- *  Symbol
- *
- *  Copyright 2007-2010 (c) Jeff Brown <spadix@users.sourceforge.net>
- *
- *  This file is part of the ZBar Bar Code Reader.
- *
- *  The ZBar Bar Code Reader is free software; you can redistribute it
- *  and/or modify it under the terms of the GNU Lesser Public License as
- *  published by the Free Software Foundation; either version 2.1 of
- *  the License, or (at your option) any later version.
- *
- *  The ZBar Bar Code Reader is distributed in the hope that it will be
- *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser Public License
- *  along with the ZBar Bar Code Reader; if not, write to the Free
- *  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- *  Boston, MA  02110-1301  USA
- *
- *  http://sourceforge.net/projects/zbar
- *------------------------------------------------------------------------*/
-
-package net.sourceforge.zbar;
-
-import java.io.Closeable;
-
-/**
- * Immutable container for decoded result symbols associated with an image
- * or a composite symbol.
- */
-public class Symbol implements Closeable {
-    /**
-     * No symbol decoded.
-     */
-    public static final int NONE = 0;
-    /**
-     * Symbol detected but not decoded.
-     */
-    public static final int PARTIAL = 1;
-
-    /**
-     * EAN-8.
-     */
-    public static final int EAN8 = 8;
-    /**
-     * UPC-E.
-     */
-    public static final int UPCE = 9;
-    /**
-     * ISBN-10 (from EAN-13).
-     */
-    public static final int ISBN10 = 10;
-    /**
-     * UPC-A.
-     */
-    public static final int UPCA = 12;
-    /**
-     * EAN-13.
-     */
-    public static final int EAN13 = 13;
-    /**
-     * ISBN-13 (from EAN-13).
-     */
-    public static final int ISBN13 = 14;
-    /**
-     * Interleaved 2 of 5.
-     */
-    public static final int I25 = 25;
-    /**
-     * DataBar (RSS-14).
-     */
-    public static final int DATABAR = 34;
-    /**
-     * DataBar Expanded.
-     */
-    public static final int DATABAR_EXP = 35;
-    /**
-     * Codabar.
-     */
-    public static final int CODABAR = 38;
-    /**
-     * Code 39.
-     */
-    public static final int CODE39 = 39;
-    /**
-     * PDF417.
-     */
-    public static final int PDF417 = 57;
-    /**
-     * QR Code.
-     */
-    public static final int QRCODE = 64;
-    /**
-     * Code 93.
-     */
-    public static final int CODE93 = 93;
-    /**
-     * Code 128.
-     */
-    public static final int CODE128 = 128;
-
-    static {
-        init();
-    }
-
-    /**
-     * C pointer to a zbar_symbol_t.
-     */
-    private long peer;
-    /**
-     * Cached attributes.
-     */
-    private int type;
-
-    /**
-     * Symbols are only created by other package methods.
-     */
-    Symbol(long peer) {
-        this.peer = peer;
-    }
-
-    private static native void init();
-
-    public void close() {
-        destroy();
-    }
-
-    /**
-     * Clean up native data associated with an instance.
-     */
-    public synchronized void destroy() {
-        if(peer != 0) {
-            destroy(peer);
-            peer = 0;
-        }
-    }
-
-    /**
-     * Release the associated peer instance.
-     */
-    private native void destroy(long peer);
-
-    /**
-     * Retrieve type of decoded symbol.
-     */
-    public int getType() {
-        if(type == 0) {
-            type = getType(peer);
-        }
-        return (type);
-    }
-
-    private native int getType(long peer);
-
-    /**
-     * Retrieve symbology boolean configs settings used during decode.
-     */
-    public native int getConfigMask();
-
-    /**
-     * Retrieve symbology characteristics detected during decode.
-     */
-    public native int getModifierMask();
-
-    /**
-     * Retrieve data decoded from symbol as a String.
-     */
-    public native String getData();
-
-    /**
-     * Retrieve raw data bytes decoded from symbol.
-     */
-    public native byte[] getDataBytes();
-
-    /**
-     * Retrieve a symbol confidence metric.  Quality is an unscaled,
-     * relative quantity: larger values are better than smaller
-     * values, where "large" and "small" are application dependent.
-     */
-    public native int getQuality();
-
-    /**
-     * Retrieve current cache count.  When the cache is enabled for
-     * the image_scanner this provides inter-frame reliability and
-     * redundancy information for video streams.
-     *
-     * @returns < 0 if symbol is still uncertain
-     * @returns 0 if symbol is newly verified
-     * @returns > 0 for duplicate symbols
-     */
-    public native int getCount();
-
-    /**
-     * Retrieve an approximate, axis-aligned bounding box for the
-     * symbol.
-     */
-    public int[] getBounds() {
-        int n = getLocationSize(peer);
-        if(n <= 0) {
-            return (null);
-        }
-
-        int[] bounds = new int[4];
-        int xmin = Integer.MAX_VALUE;
-        int xmax = Integer.MIN_VALUE;
-        int ymin = Integer.MAX_VALUE;
-        int ymax = Integer.MIN_VALUE;
-
-        for(int i = 0; i < n; i++) {
-            int x = getLocationX(peer, i);
-            if(xmin > x) {
-                xmin = x;
-            }
-            if(xmax < x) {
-                xmax = x;
-            }
-
-            int y = getLocationY(peer, i);
-            if(ymin > y) {
-                ymin = y;
-            }
-            if(ymax < y) {
-                ymax = y;
-            }
-        }
-        bounds[0] = xmin;
-        bounds[1] = ymin;
-        bounds[2] = xmax - xmin;
-        bounds[3] = ymax - ymin;
-        return (bounds);
-    }
-
-    private native int getLocationSize(long peer);
-
-    private native int getLocationX(long peer, int idx);
-
-    private native int getLocationY(long peer, int idx);
-
-    public int[] getLocationPoint(int idx) {
-        int[] p = new int[2];
-        p[0] = getLocationX(peer, idx);
-        p[1] = getLocationY(peer, idx);
-        return (p);
-    }
-
-    /**
-     * Retrieve general axis-aligned, orientation of decoded
-     * symbol.
-     */
-    public native int getOrientation();
-
-    /**
-     * Retrieve components of a composite result.
-     */
-    public SymbolSet getComponents() {
-        return (new SymbolSet(getComponents(peer)));
-    }
-
-    private native long getComponents(long peer);
-
-    native long next();
-}

src/main/java/net/sourceforge/zbar/SymbolIterator.java

@@ -1,75 +0,0 @@
-/*------------------------------------------------------------------------
- *  SymbolIterator
- *
- *  Copyright 2007-2010 (c) Jeff Brown <spadix@users.sourceforge.net>
- *
- *  This file is part of the ZBar Bar Code Reader.
- *
- *  The ZBar Bar Code Reader is free software; you can redistribute it
- *  and/or modify it under the terms of the GNU Lesser Public License as
- *  published by the Free Software Foundation; either version 2.1 of
- *  the License, or (at your option) any later version.
- *
- *  The ZBar Bar Code Reader is distributed in the hope that it will be
- *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser Public License
- *  along with the ZBar Bar Code Reader; if not, write to the Free
- *  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- *  Boston, MA  02110-1301  USA
- *
- *  http://sourceforge.net/projects/zbar
- *------------------------------------------------------------------------*/
-
-package net.sourceforge.zbar;
-
-/**
- * Iterator over a SymbolSet.
- */
-public class SymbolIterator implements java.util.Iterator<Symbol> {
-    /**
-     * Next symbol to be returned by the iterator.
-     */
-    private Symbol current;
-
-    /**
-     * SymbolIterators are only created by internal interface methods.
-     */
-    SymbolIterator(Symbol first) {
-        current = first;
-    }
-
-    /**
-     * Returns true if the iteration has more elements.
-     */
-    public boolean hasNext() {
-        return (current != null);
-    }
-
-    /**
-     * Retrieves the next element in the iteration.
-     */
-    public Symbol next() {
-        if(current == null) {
-            throw (new java.util.NoSuchElementException("access past end of SymbolIterator"));
-        }
-
-        Symbol result = current;
-        long sym = current.next();
-        if(sym != 0) {
-            current = new Symbol(sym);
-        } else {
-            current = null;
-        }
-        return (result);
-    }
-
-    /**
-     * Raises UnsupportedOperationException.
-     */
-    public void remove() {
-        throw (new UnsupportedOperationException("SymbolIterator is immutable"));
-    }
-}

src/main/java/net/sourceforge/zbar/SymbolSet.java

@@ -1,93 +0,0 @@
-/*------------------------------------------------------------------------
- *  SymbolSet
- *
- *  Copyright 2007-2010 (c) Jeff Brown <spadix@users.sourceforge.net>
- *
- *  This file is part of the ZBar Bar Code Reader.
- *
- *  The ZBar Bar Code Reader is free software; you can redistribute it
- *  and/or modify it under the terms of the GNU Lesser Public License as
- *  published by the Free Software Foundation; either version 2.1 of
- *  the License, or (at your option) any later version.
- *
- *  The ZBar Bar Code Reader is distributed in the hope that it will be
- *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- *  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Lesser Public License for more details.
- *
- *  You should have received a copy of the GNU Lesser Public License
- *  along with the ZBar Bar Code Reader; if not, write to the Free
- *  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- *  Boston, MA  02110-1301  USA
- *
- *  http://sourceforge.net/projects/zbar
- *------------------------------------------------------------------------*/
-
-package net.sourceforge.zbar;
-
-import java.io.Closeable;
-
-/**
- * Immutable container for decoded result symbols associated with an image
- * or a composite symbol.
- */
-public class SymbolSet extends java.util.AbstractCollection<Symbol> implements Closeable {
-    static {
-        init();
-    }
-
-    /**
-     * C pointer to a zbar_symbol_set_t.
-     */
-    private long peer;
-
-    /**
-     * SymbolSets are only created by other package methods.
-     */
-    SymbolSet(long peer) {
-        this.peer = peer;
-    }
-
-    private static native void init();
-
-    public void close() {
-        destroy();
-    }
-
-    /**
-     * Clean up native data associated with an instance.
-     */
-    public synchronized void destroy() {
-        if(peer != 0) {
-            destroy(peer);
-            peer = 0;
-        }
-    }
-
-    /**
-     * Release the associated peer instance.
-     */
-    private native void destroy(long peer);
-
-    /**
-     * Retrieve an iterator over the Symbol elements in this collection.
-     */
-    public java.util.Iterator<Symbol> iterator() {
-        long sym = firstSymbol(peer);
-        if(sym == 0) {
-            return (new SymbolIterator(null));
-        }
-
-        return (new SymbolIterator(new Symbol(sym)));
-    }
-
-    /**
-     * Retrieve the number of elements in the collection.
-     */
-    public native int size();
-
-    /**
-     * Retrieve C pointer to first symbol in the set.
-     */
-    private native long firstSymbol(long peer);
-}

src/main/resources/com/sparrowwallet/sparrow/general.css

@@ -46,7 +46,7 @@
 
 .id, .fixed-width {
     -fx-font-size: 13px;
-    -fx-font-family: 'Roboto Mono';
+    -fx-font-family: 'Fragment Mono Regular';
 }
 
 .form-separator {

src/main/resources/com/sparrowwallet/sparrow/script.css

@@ -29,7 +29,7 @@
 
 .virtualized-scroll-pane .code-area, .uneditable-codearea {
     -fx-font-size: 13px;
-    -fx-font-family: 'Roboto Mono';
+    -fx-font-family: 'Fragment Mono Regular';
     -fx-padding: 4;
     -fx-fill: -fx-text-inner-color;
 }

src/main/resources/com/sparrowwallet/sparrow/transaction/headers.css

@@ -44,7 +44,7 @@
 
 #transactionDiagram .input-label, #transactionDiagram .recipient-label, #transactionDiagram .change-label, #transactionDiagram .fee-tooltip, #transactionDiagram .transaction-tooltip {
     -fx-font-size: 13px;
-    -fx-font-family: 'Roboto Mono';
+    -fx-font-family: 'Fragment Mono Regular';
 }
 
 #transactionDiagram .fee-warning-icon {

src/main/resources/com/sparrowwallet/sparrow/transaction/headers.fxml

@@ -40,7 +40,9 @@
         <ColumnConstraints percentWidth="50" />
     </columnConstraints>
    <rowConstraints>
-      <RowConstraints />
+        <RowConstraints />
+        <RowConstraints />
+        <RowConstraints vgrow="SOMETIMES" />
    </rowConstraints>
     <Form GridPane.columnIndex="0" GridPane.rowIndex="0" GridPane.columnSpan="2">
         <Fieldset text="Transaction" inputGrow="SOMETIMES" wrapWidth="620">
@@ -74,9 +76,11 @@
 
     <TabPane side="RIGHT" GridPane.columnIndex="0" GridPane.rowIndex="2" GridPane.columnSpan="2" styleClass="headers-tabs">
         <Tab text="Overview" closable="false">
-            <VBox spacing="8">
-                <TransactionDiagram fx:id="transactionDiagram" maxWidth="700" final="true"/>
-                <TransactionDiagramLabel fx:id="transactionDiagramLabel" maxWidth="640" prefWidth="640" />
+            <VBox spacing="8" alignment="CENTER">
+                <Region VBox.vgrow="SOMETIMES" />
+                <TransactionDiagram fx:id="transactionDiagram" final="true"/>
+                <TransactionDiagramLabel fx:id="transactionDiagramLabel" />
+                <Region VBox.vgrow="SOMETIMES" />
             </VBox>
         </Tab>
         <Tab text="Detail" closable="false">
@@ -176,19 +180,41 @@
 
     <Separator GridPane.columnIndex="0" GridPane.rowIndex="5" GridPane.columnSpan="2" styleClass="form-separator"/>
 
-    <DynamicForm fx:id="blockchainForm" GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.rowIndex="6">
-        <Fieldset text="Blockchain" inputGrow="SOMETIMES">
-            <Field text="Status:">
-                <Label fx:id="blockStatus" contentDisplay="RIGHT" graphicTextGap="5" />
-            </Field>
-            <Field fx:id="blockHeightField" text="Block Height:">
-                <CopyableLabel fx:id="blockHeight" />
-            </Field>
-            <Field fx:id="blockTimestampField" text="Timestamp:">
-                <CopyableLabel fx:id="blockTimestamp" />
-            </Field>
-        </Fieldset>
-    </DynamicForm>
+    <GridPane GridPane.columnIndex="0" GridPane.columnSpan="2" GridPane.rowIndex="6">
+        <columnConstraints>
+            <ColumnConstraints percentWidth="80" />
+            <ColumnConstraints percentWidth="20" />
+        </columnConstraints>
+        <DynamicForm fx:id="blockchainForm" GridPane.columnIndex="0" GridPane.rowIndex="0">
+            <Fieldset text="Blockchain" inputGrow="SOMETIMES">
+                <Field text="Status:">
+                    <Label fx:id="blockStatus" contentDisplay="RIGHT" graphicTextGap="5" />
+                </Field>
+                <Field fx:id="blockHeightField" text="Block Height:">
+                    <CopyableLabel fx:id="blockHeight" />
+                </Field>
+                <Field fx:id="blockTimestampField" text="Timestamp:">
+                    <CopyableLabel fx:id="blockTimestamp" />
+                </Field>
+            </Fieldset>
+        </DynamicForm>
+        <Form fx:id="blockchainSpacerForm" GridPane.columnIndex="1" GridPane.rowIndex="0" visible="false">
+            <Fieldset text="Spacer" inputGrow="SOMETIMES">
+                <VBox>
+                    <ProgressBar styleClass="signatures-progress-bar" maxWidth="Infinity" minHeight="50" prefHeight="50" progress="0" />
+                </VBox>
+                <VBox>
+                    <HBox styleClass="signatures-buttons" spacing="20">
+                        <Button HBox.hgrow="ALWAYS" textAlignment="CENTER" text="Spacer" contentDisplay="TOP" wrapText="true">
+                            <graphic>
+                                <Glyph fontFamily="Font Awesome 5 Free Solid" fontSize="20" icon="SEARCH" />
+                            </graphic>
+                        </Button>
+                    </HBox>
+                </VBox>
+            </Fieldset>
+        </Form>
+    </GridPane>
 
     <Form fx:id="signingWalletForm" GridPane.columnIndex="0" GridPane.rowIndex="6">
         <Fieldset text="Signatures" inputGrow="SOMETIMES" styleClass="relaxedLabelFieldSet">
@@ -236,7 +262,7 @@
         <Fieldset text="Signatures" inputGrow="SOMETIMES">
             <VBox>
                 <SignaturesProgressBar fx:id="signaturesProgressBar" />
-                <ProgressBar fx:id="broadcastProgressBar" maxWidth="Infinity" prefHeight="50" />
+                <ProgressBar fx:id="broadcastProgressBar" maxWidth="Infinity" minHeight="50" prefHeight="50" />
             </VBox>
             <VBox>
                 <HBox fx:id="signButtonBox" styleClass="signatures-buttons" spacing="20">

src/main/resources/com/sparrowwallet/sparrow/transaction/inputs.css

@@ -23,7 +23,7 @@
 
 .chart-legend-item {
     -fx-font-size: 13px;
-    -fx-font-family: 'Roboto Mono';
+    -fx-font-family: 'Fragment Mono Regular';
 }
 
 .default-color0.chart-pie { -fx-pie-color: #ca1243 }

src/main/resources/com/sparrowwallet/sparrow/transaction/outputs.css

@@ -23,7 +23,7 @@
 
 .chart-legend-item {
     -fx-font-size: 13;
-    -fx-font-family: 'Roboto Mono';
+    -fx-font-family: 'Fragment Mono Regular';
 }
 
 .default-color7.chart-pie { -fx-pie-color: #0184bc }

src/main/resources/com/sparrowwallet/sparrow/transaction/transaction.css

@@ -1,7 +1,7 @@
 #txhex {
     -fx-background-color: -fx-control-inner-background;
     -fx-font-size: 13px;
-    -fx-font-family: 'Roboto Mono';
+    -fx-font-family: 'Fragment Mono Regular';
     -fx-padding: 2;
     color-0: #ca1243;
     color-1: #d75f00;

src/main/resources/com/sparrowwallet/sparrow/wallet/keystore.css

@@ -15,7 +15,7 @@
 
 #fingerprint, #derivation, #xpub {
     -fx-font-size: 13px;
-    -fx-font-family: 'Roboto Mono';
+    -fx-font-family: 'Fragment Mono Regular';
 }
 
 #type {

src/main/resources/com/sparrowwallet/sparrow/wallet/payment.fxml

@@ -21,7 +21,7 @@
         <Insets top="10.0" bottom="10.0" />
     </padding>
     <columnConstraints>
-        <ColumnConstraints prefWidth="410" />
+        <ColumnConstraints prefWidth="410" hgrow="SOMETIMES" />
         <ColumnConstraints prefWidth="200" />
         <ColumnConstraints prefWidth="105" />
     </columnConstraints>

src/main/resources/com/sparrowwallet/sparrow/wallet/receive.fxml

@@ -26,7 +26,7 @@
                 <Insets left="25.0" right="25.0" top="25.0" />
             </padding>
             <columnConstraints>
-                <ColumnConstraints prefWidth="620" />
+                <ColumnConstraints prefWidth="620" hgrow="SOMETIMES" />
                 <ColumnConstraints prefWidth="140" />
             </columnConstraints>
             <rowConstraints>

src/main/resources/com/sparrowwallet/sparrow/wallet/send.css

@@ -71,7 +71,7 @@
 
 #transactionDiagram .input-label, #transactionDiagram .recipient-label, #transactionDiagram .change-label, #transactionDiagram .fee-tooltip, #transactionDiagram .transaction-tooltip {
     -fx-font-size: 13px;
-    -fx-font-family: 'Roboto Mono';
+    -fx-font-family: 'Fragment Mono Regular';
 }
 
 #transactionDiagram .fee-warning-icon {

src/main/resources/com/sparrowwallet/sparrow/wallet/send.fxml

@@ -36,7 +36,7 @@
                     <Insets left="25.0" right="25.0" top="25.0" />
                 </padding>
                 <columnConstraints>
-                    <ColumnConstraints prefWidth="410" />
+                    <ColumnConstraints prefWidth="410" hgrow="SOMETIMES" />
                     <ColumnConstraints prefWidth="200" />
                     <ColumnConstraints prefWidth="140" />
                 </columnConstraints>
@@ -152,9 +152,9 @@
                     <RecentBlocksView fx:id="recentBlocksView" styleClass="feeRatesChart" AnchorPane.topAnchor="10" AnchorPane.leftAnchor="74" translateY="30" minHeight="135"/>
                 </AnchorPane>
             </GridPane>
-            <AnchorPane>
-                <TransactionDiagram fx:id="transactionDiagram" maxWidth="700" AnchorPane.leftAnchor="100" />
-            </AnchorPane>
+            <StackPane VBox.vgrow="SOMETIMES">
+                <TransactionDiagram fx:id="transactionDiagram" />
+            </StackPane>
         </VBox>
     </center>
     <bottom>

src/main/resources/com/sparrowwallet/sparrow/wallet/wallet.css

@@ -31,7 +31,7 @@
 
 .address-cell, .utxo-row.entry-cell {
     -fx-font-size: 13px;
-    -fx-font-family: 'Roboto Mono';
+    -fx-font-family: 'Fragment Mono Regular';
 }
 
 .cell > .hyperlink {
@@ -149,7 +149,7 @@
 
 .address-text-field {
     -fx-font-size: 13px;
-    -fx-font-family: 'Roboto Mono';
+    -fx-font-family: 'Fragment Mono Regular';
 }
 
 .unconfirmed-row {