diff --git a/packages/agent/CHANGELOG.md b/packages/agent/CHANGELOG.md
index baddff931..fd816423e 100644
--- a/packages/agent/CHANGELOG.md
+++ b/packages/agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.78.0] - 2026-05-29
 
 ## [0.77.0] - 2026-05-28
diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index cc36eae22..c5b27a084 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.78.0] - 2026-05-29
 
 ### Breaking Changes
diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index f0ec8428f..8326b5651 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.78.0] - 2026-05-29
 
 ### New Features
diff --git a/packages/tui/CHANGELOG.md b/packages/tui/CHANGELOG.md
index 47297b4ff..ae628067d 100644
--- a/packages/tui/CHANGELOG.md
+++ b/packages/tui/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.78.0] - 2026-05-29
 
 ### Fixed