diff --git a/packages/agent/CHANGELOG.md b/packages/agent/CHANGELOG.md
index 5b970f8d0..b5367030f 100644
--- a/packages/agent/CHANGELOG.md
+++ b/packages/agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [1.4.0] - 2026-10-21
 
 ### Added
diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index 41016e4f0..0c9fcee1d 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [1.4.0] - 2026-10-21
 
 ### Breaking Changes
diff --git a/packages/chord/CHANGELOG.md b/packages/chord/CHANGELOG.md
index 0eeae64b0..5a2aca4b6 100644
--- a/packages/chord/CHANGELOG.md
+++ b/packages/chord/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [1.4.0] - 2026-10-21
 
 ### Breaking Changes
diff --git a/packages/codemode/CHANGELOG.md b/packages/codemode/CHANGELOG.md
index a24c61c09..decd59f9e 100644
--- a/packages/codemode/CHANGELOG.md
+++ b/packages/codemode/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [1.4.0] - 2026-10-21
 
 ## [1.3.0] - 2026-10-15
diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index eaa3076af..564f8b0b9 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [1.4.0] - 2026-10-21
 
 ### New Features
diff --git a/packages/durable/CHANGELOG.md b/packages/durable/CHANGELOG.md
index 689b8f2ec..f764683f0 100644
--- a/packages/durable/CHANGELOG.md
+++ b/packages/durable/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [1.4.0] - 2026-10-21
 
 ### Breaking Changes
diff --git a/packages/env/CHANGELOG.md b/packages/env/CHANGELOG.md
index 7792c0248..4d2a1c0e1 100644
--- a/packages/env/CHANGELOG.md
+++ b/packages/env/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [1.4.0] - 2026-10-21
 
 ## [1.3.0] - 2026-10-15
diff --git a/packages/mcp/CHANGELOG.md b/packages/mcp/CHANGELOG.md
index 47fe44917..da6dedffd 100644
--- a/packages/mcp/CHANGELOG.md
+++ b/packages/mcp/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [1.4.0] - 2026-10-21
 
 ## [1.3.0] - 2026-10-15
diff --git a/packages/telemetry/CHANGELOG.md b/packages/telemetry/CHANGELOG.md
index 38ab8df3b..b71b6c86e 100644
--- a/packages/telemetry/CHANGELOG.md
+++ b/packages/telemetry/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [1.4.0] - 2026-10-21
 
 ### Breaking Changes
diff --git a/packages/tui/CHANGELOG.md b/packages/tui/CHANGELOG.md
index 196238dec..da21edae9 100644
--- a/packages/tui/CHANGELOG.md
+++ b/packages/tui/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [1.4.0] - 2026-10-21
 
 ### Added