diff --git a/CHANGELOG.md b/CHANGELOG.md
index ec454d73..4bb44c6a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,13 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-<!-- The 0.4.2 date below is provisional and is confirmed at the tag, together
-     with the same date in RELEASE-NOTES.md and in
-     docs/releases/release-notes-v0.4.2.md. All three carry it; a prior release
-     shipped a wrong date in two of the three because the confirm step was
-     scoped to one file. -->
-
-## [0.4.2] - 2026-08-24
+## [0.4.2] - 2026-08-25
 
 ### FMP/FSP sessions and rekey
 
diff --git a/Cargo.lock b/Cargo.lock
index 2a0a98e0..6b79c4ab 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1087,7 +1087,7 @@ checksum = "9844ddc3a6e533d62bba727eb6c28b5d360921d5175e9ff0f1e621a5c590a4d5"
 
 [[package]]
 name = "fips"
-version = "0.4.2-dev"
+version = "0.4.2"
 dependencies = [
  "arc-swap",
  "bech32",
diff --git a/Cargo.toml b/Cargo.toml
index d5b1db2b..5292686e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "fips"
-version = "0.4.2-dev"
+version = "0.4.2"
 edition = "2024"
 description = "A distributed, decentralized network routing protocol for mesh nodes connecting over arbitrary transports"
 license = "MIT"
diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 6d164fab..8855a003 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -1,7 +1,6 @@
 # FIPS v0.4.2
 
-**Released**: 2026-08-24 (provisional: the date is confirmed when the
-release is tagged)
+**Released**: 2026-08-25
 
 v0.4.2 is a maintenance release on the v0.4.x line, and the largest one
 this line has carried: 144 commits since v0.4.1. Most of it is security
diff --git a/docs/releases/release-notes-v0.4.2.md b/docs/releases/release-notes-v0.4.2.md
index 6d164fab..8855a003 100644
--- a/docs/releases/release-notes-v0.4.2.md
+++ b/docs/releases/release-notes-v0.4.2.md
@@ -1,7 +1,6 @@
 # FIPS v0.4.2
 
-**Released**: 2026-08-24 (provisional: the date is confirmed when the
-release is tagged)
+**Released**: 2026-08-25
 
 v0.4.2 is a maintenance release on the v0.4.x line, and the largest one
 this line has carried: 144 commits since v0.4.1. Most of it is security