diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ce7032..19d2e9d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+
+# 0.4.2
+_2026-04-12_
+
+Version 0.4.2 adds support for getting the Kotlin version for Gradle 5 and improves KDoc. Many thanks @sschuberth for the feedback and contributions in this release.
+
+## What's Changed
+* [NEW] Support getting the Kotlin version for Gradle 5 (#93)
+* [UPDATE] Update nmcp, tapmoc, and librarian versions used to build tapmoc (no runtime impact) (#85, #86, #87)
+* [INFRA] Improve the KDoc of `tapmoc.kotlin()` (#94)
+* [INFRA] Simplify parsing the Gradle major version (#91)
+
 # 0.4.1
 _2026-03-30_
 
diff --git a/librarian.root.properties b/librarian.root.properties
index 70066ae..620f01b 100644
--- a/librarian.root.properties
+++ b/librarian.root.properties
@@ -5,7 +5,7 @@ kdoc.olderVersions=
 kdoc.projects=:tapmoc-gradle-plugin,:tapmoc-tasks
 
 pom.groupId=com.gradleup.tapmoc
-pom.version=0.4.2-SNAPSHOT
+pom.version=0.4.3-SNAPSHOT
 pom.description=tapmoc
 pom.vcsUrl=https://github.com/GradleUp/tapmoc
 pom.developer=tapmoc authors