diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 218393f..4cff5b9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.4.1"
+  ".": "0.4.2"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 488f34b..2e38e14 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 ## [Unreleased]
 
+## [0.4.2] - 2026-06-12
+
+### Changed
+
+- Releases are now driven by release-please with Communique authoring the changelog section. CHANGELOG headings for new releases drop the `v` prefix (e.g. `## [0.4.2] - ...`); the historical `## [v0.4.1]` entry is left untouched. No CLI, JSON envelope, snapshot, recording, or export behavior changes ([#143](https://github.com/coder/agent-tty/pull/143) by @ThomasK33).
+
 ## [v0.4.1] - 2026-06-12
 
 ### Added
diff --git a/package.json b/package.json
index 0171756..aae7932 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "agent-tty",
-  "version": "0.4.1",
+  "version": "0.4.2",
   "description": "Terminal automation CLI for AI agents and humans",
   "license": "Apache-2.0",
   "keywords": [