diff --git a/amethyst/src/main/res/values-pl-rPL/strings.xml b/amethyst/src/main/res/values-pl-rPL/strings.xml
index 5f2c6efd61..d956737d3e 100644
--- a/amethyst/src/main/res/values-pl-rPL/strings.xml
+++ b/amethyst/src/main/res/values-pl-rPL/strings.xml
@@ -71,7 +71,7 @@
     <string name="quote">Zacytuj</string>
     <string name="fork">Sklonuj</string>
     <string name="propose_an_edit">Zaproponuj zmianę</string>
-    <string name="new_amount_in_sats">Nowa kwota w Satsach</string>
+    <string name="new_amount_in_sats">Nowa kwota w satoszach</string>
     <string name="add">Dodaj</string>
     <string name="replying_to">"odpowiadając do "</string>
     <string name="and">" i "</string>
@@ -92,7 +92,7 @@
     <string name="lightning_tips">Lightning transfer</string>
     <string name="note_to_receiver">Wiadomość dla odbiorcy</string>
     <string name="thank_you_so_much">Dziękuję bardzo!</string>
-    <string name="amount_in_sats">Kwota w Satsach</string>
+    <string name="amount_in_sats">Kwota w satoszach</string>
     <string name="send_sats">Wyślij</string>
     <string name="secret_emoji_maker">Kreator tajnych emoji</string>
     <string name="secret_emoji_maker_explainer">Dodaj emoji z ukrytą wiadomością do wpisu</string>
@@ -1101,6 +1101,13 @@
     <string name="new_community_note">Nowy wpis w społeczności</string>
     <string name="new_product">Nowy produkt</string>
     <string name="new_exclusive_geo_note">Nowy GEO-ekskluzywny Wpis</string>
+    <string name="new_long_form_post">Nowy artykuł</string>
+    <string name="article_title">Tytuł</string>
+    <string name="article_summary">Podsumowanie (opcjonalnie)</string>
+    <string name="article_cover_image_url">Adres URL miniaturki (opcjonalnie)</string>
+    <string name="write_your_article_in_markdown">Napisz artykuł w formacie markdown…</string>
+    <string name="markdown_preview">Podgląd</string>
+    <string name="markdown_edit">Edytuj</string>
     <string name="open_all_reactions_to_this_post">Otwórz wszystkie odzewy na ten post</string>
     <string name="close_all_reactions_to_this_post">Zamknij wszystkie odzewy na ten post</string>
     <string name="reply_description">Odpowiedź</string>
@@ -1238,6 +1245,7 @@
     <string name="existed_since">OTS: %1$s</string>
     <string name="ots_info_title">Potwierdzenie znacznika czasu</string>
     <string name="ots_info_description">Istnieje dowód na to, że ten post został podpisany przed %1$s. Dowód został opatrzony pieczęcią w łańcuchu bloków Bitcoin w tym dniu i czasie.</string>
+    <string name="edit_article">Redaguj artykuł</string>
     <string name="edit_post">Edytuj wpis</string>
     <string name="proposal_to_edit">Propozycja ulepszenia wpisu</string>
     <string name="message_to_author">Podsumowanie zmian</string>
@@ -1560,6 +1568,7 @@
     <string name="name_search_npub1_alice_example_com">wyszukaj, npub1…, alicja@domena.pl</string>
     <string name="supports_npub_nip_05_hex_and_namecoin_bit_d_id">Obsługuje npub, nprofile, NIP-05, hex, i namecoin (.bit, d/, id/)</string>
     <string name="look_up_follow_list">Sprawdź listę obserwowanych</string>
+    <string name="tip">Porada</string>
     <string name="accounts_found">Znaleziono %1$d kont(a)</string>
     <string name="num_selected">Wybrano: %1$d</string>
     <string name="resolved_via_namecoin">Rozwiązane przez Namecoin</string>
@@ -1659,4 +1668,11 @@
     <string name="attestor_proficiency_for_kinds">Biegłość w sprawdzaniu typów: %1$s</string>
     <string name="attestation_attests_to">Certyfikat dla</string>
     <string name="attestation_requests_attestation_to">Żądanie certyfikatu do</string>
+    <string name="event_sync_date_filter_title">Przedział czasu</string>
+    <string name="event_sync_date_filter_since">Od</string>
+    <string name="event_sync_date_filter_until">Do</string>
+    <string name="event_sync_date_filter_now">Teraz</string>
+    <string name="event_sync_date_filter_all_time">Cały czas</string>
+    <string name="event_sync_date_filter_last_sync">Ostatnia synchronizacja %1$s</string>
+    <string name="event_sync_date_filter_since_last_sync">Od ostatniej synchronizacji</string>
 </resources>
diff --git a/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/richtext/UrlParserTest.kt b/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/richtext/UrlParserTest.kt
index b9613c5cd7..600c0f27f0 100644
--- a/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/richtext/UrlParserTest.kt
+++ b/commons/src/commonTest/kotlin/com/vitorpamplona/amethyst/commons/richtext/UrlParserTest.kt
@@ -281,6 +281,18 @@ class UrlParserTest {
             Urls(withScheme = emptySet()),
         )
 
+    /**
+     * Regression test for PR #1907: parsing a note whose content is only the Japanese phrase
+     * "今北産業" (a common internet abbreviation) must not throw a StringIndexOutOfBoundsException
+     * from Url.getPart() and must produce no detected URLs.
+     */
+    @Test
+    fun testImakitaSangyo() =
+        test(
+            "今北産業",
+            Urls(),
+        )
+
     @Test
     fun testHour() =
         test(
diff --git a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/utils/urldetector/Url.kt b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/utils/urldetector/Url.kt
index 538d9ea323..46927f771d 100644
--- a/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/utils/urldetector/Url.kt
+++ b/quartz/src/commonMain/kotlin/com/vitorpamplona/quartz/utils/urldetector/Url.kt
@@ -228,11 +228,17 @@ class Url(
             return null
         }
 
+        val startIndex = urlMarker.indexOf(part)
+        if (startIndex < 0 || startIndex >= originalUrl.length) {
+            return null
+        }
+
         val nextPart = nextExistingPart(part)
         return if (nextPart == null) {
-            originalUrl.substring(urlMarker.indexOf(part))
+            originalUrl.substring(startIndex)
         } else {
-            originalUrl.substring(urlMarker.indexOf(part), urlMarker.indexOf(nextPart))
+            val endIndex = urlMarker.indexOf(nextPart)
+            originalUrl.substring(startIndex, minOf(endIndex, originalUrl.length))
         }
     }
 
diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip10Notes/urls/UrlsDetectorTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip10Notes/urls/UrlsDetectorTest.kt
index 0d526ab172..aae685bf2b 100644
--- a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip10Notes/urls/UrlsDetectorTest.kt
+++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/nip10Notes/urls/UrlsDetectorTest.kt
@@ -41,4 +41,14 @@ class UrlsDetectorTest {
         assertContains(detectedLinks, "https://mysite.xyz")
         assertContains(detectedLinks, "https://myblog.xyz")
     }
+
+    /**
+     * Regression test for PR #1907: the Japanese phrase "今北産業" must not crash the URL
+     * detector with a StringIndexOutOfBoundsException and must return no URLs.
+     */
+    @Test
+    fun doesNotCrashOnJapaneseText() {
+        val detectedLinks = fastFindURLs("今北産業")
+        assertEquals(0, detectedLinks.size)
+    }
 }
diff --git a/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlTest.kt b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlTest.kt
new file mode 100644
index 0000000000..a29c5e99e3
--- /dev/null
+++ b/quartz/src/commonTest/kotlin/com/vitorpamplona/quartz/utils/urldetector/UrlTest.kt
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2025 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.quartz.utils.urldetector
+
+import com.vitorpamplona.quartz.utils.urldetector.detection.UrlDetector
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertNotNull
+
+/**
+ * Regression tests for PR #1907: StringIndexOutOfBoundsException in [Url.getPart] when
+ * processing the Japanese text "今北産業".
+ */
+class UrlTest {
+    /**
+     * Regression: detecting URLs in "今北産業" must not throw and must return no URLs.
+     */
+    @Test
+    fun detectingImakitaSangyoDoesNotThrow() {
+        val urls = UrlDetector("今北産業").detect()
+        assertEquals(0, urls.size)
+    }
+
+    /**
+     * Regression: constructing a Url with "今北産業" as the original string and a HOST
+     * marker at 0 with PORT at the string length (simulating a trimmed trailing character)
+     * must not throw StringIndexOutOfBoundsException when accessing any property.
+     *
+     * "今北産業" has length 4. PORT at 4 == length triggers the startIndex >= length guard
+     * added to getPart() in PR #1907.
+     */
+    @Test
+    fun urlPropertiesDoNotThrowForImakitaSangyoWithOutOfRangeMarker() {
+        val marker = UrlMarker()
+        marker.setIndex(UrlPart.HOST, 0)
+        marker.setIndex(UrlPart.PORT, 4) // == "今北産業".length
+        val url = marker.createUrl("今北産業")
+
+        assertNotNull(url.scheme)
+        assertNotNull(url.host)
+        assertNotNull(url.path)
+        assertNotNull(url.query)
+        assertNotNull(url.fragment)
+        assertEquals(-1, url.port) // getPart(PORT) returns null → -1
+    }
+}