diff --git a/packages/agent/CHANGELOG.md b/packages/agent/CHANGELOG.md
index 47468c436..c73f35288 100644
--- a/packages/agent/CHANGELOG.md
+++ b/packages/agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.4] - 2026-01-10
 
 ## [0.42.3] - 2026-01-10
diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index d917cbb45..7f0301456 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.4] - 2026-01-10
 
 ## [0.42.3] - 2026-01-10
diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index c0f542536..229830fc1 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.4] - 2026-01-10
 
 ### Fixed
diff --git a/packages/mom/CHANGELOG.md b/packages/mom/CHANGELOG.md
index d204df804..914d4b550 100644
--- a/packages/mom/CHANGELOG.md
+++ b/packages/mom/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.4] - 2026-01-10
 
 ## [0.42.3] - 2026-01-10
diff --git a/packages/tui/CHANGELOG.md b/packages/tui/CHANGELOG.md
index 264248012..702f67d9d 100644
--- a/packages/tui/CHANGELOG.md
+++ b/packages/tui/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.4] - 2026-01-10
 
 ## [0.42.3] - 2026-01-10
diff --git a/packages/web-ui/CHANGELOG.md b/packages/web-ui/CHANGELOG.md
index 07053992e..eefb9b670 100644
--- a/packages/web-ui/CHANGELOG.md
+++ b/packages/web-ui/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.42.4] - 2026-01-10
 
 ## [0.42.3] - 2026-01-10