diff --git a/packages/agent/CHANGELOG.md b/packages/agent/CHANGELOG.md
index e371e6157..90b6a36ff 100644
--- a/packages/agent/CHANGELOG.md
+++ b/packages/agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.85.1] - 2026-09-05
 
 ## [0.85.0] - 2026-09-04
diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index c37caeb58..d299278ee 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.85.1] - 2026-09-05
 
 ### Added
diff --git a/packages/client/CHANGELOG.md b/packages/client/CHANGELOG.md
index 17c23a2fd..c2a56e00b 100644
--- a/packages/client/CHANGELOG.md
+++ b/packages/client/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.85.1] - 2026-09-05
 
 ## [0.85.0] - 2026-09-04
diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index 8f46ee7f7..8ec3747bf 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.85.1] - 2026-09-05
 
 ### New Features
diff --git a/packages/protocol/CHANGELOG.md b/packages/protocol/CHANGELOG.md
index cde4ca958..99a5dce8b 100644
--- a/packages/protocol/CHANGELOG.md
+++ b/packages/protocol/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.85.1] - 2026-09-05
 
 ## [0.85.0] - 2026-09-04
diff --git a/packages/server/CHANGELOG.md b/packages/server/CHANGELOG.md
index 9685a4809..cab4de43b 100644
--- a/packages/server/CHANGELOG.md
+++ b/packages/server/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.85.1] - 2026-09-05
 
 ## [0.85.0] - 2026-09-04
diff --git a/packages/session-backends/sqlite-node/CHANGELOG.md b/packages/session-backends/sqlite-node/CHANGELOG.md
index 693c5aa31..37d679afe 100644
--- a/packages/session-backends/sqlite-node/CHANGELOG.md
+++ b/packages/session-backends/sqlite-node/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.85.1] - 2026-09-05
 
 ## [0.85.0] - 2026-09-04
diff --git a/packages/telemetry/CHANGELOG.md b/packages/telemetry/CHANGELOG.md
index 52c8345e7..6b4a8ca2d 100644
--- a/packages/telemetry/CHANGELOG.md
+++ b/packages/telemetry/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.85.1] - 2026-09-05
 
 ## [0.85.0] - 2026-09-04
diff --git a/packages/tui/CHANGELOG.md b/packages/tui/CHANGELOG.md
index 36003820b..0a5a33135 100644
--- a/packages/tui/CHANGELOG.md
+++ b/packages/tui/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.85.1] - 2026-09-05
 
 ### Added