diff --git a/packages/agent/CHANGELOG.md b/packages/agent/CHANGELOG.md
index d6388019..771e6df1 100644
--- a/packages/agent/CHANGELOG.md
+++ b/packages/agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.3] - 2026-01-10
 
 ## [0.42.2] - 2026-01-10
diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index bb3cb063..da2cb07d 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.3] - 2026-01-10
 
 ### Changed
diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index 16b19cbf..986818ff 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.3] - 2026-01-10
 
 ### Changed
diff --git a/packages/mom/CHANGELOG.md b/packages/mom/CHANGELOG.md
index 4fa380da..7c30567f 100644
--- a/packages/mom/CHANGELOG.md
+++ b/packages/mom/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.3] - 2026-01-10
 
 ## [0.42.2] - 2026-01-10
diff --git a/packages/tui/CHANGELOG.md b/packages/tui/CHANGELOG.md
index bc147fed..73323524 100644
--- a/packages/tui/CHANGELOG.md
+++ b/packages/tui/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.3] - 2026-01-10
 
 ## [0.42.2] - 2026-01-10
diff --git a/packages/web-ui/CHANGELOG.md b/packages/web-ui/CHANGELOG.md
index b2dad5bc..6a7ae9f5 100644
--- a/packages/web-ui/CHANGELOG.md
+++ b/packages/web-ui/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.3] - 2026-01-10
 
 ## [0.42.2] - 2026-01-10