diff --git a/packages/agent/CHANGELOG.md b/packages/agent/CHANGELOG.md
index a6bc83770..c057c3228 100644
--- a/packages/agent/CHANGELOG.md
+++ b/packages/agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.84.3] - 2026-08-24
 
 ### Fixed
diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index f3281fa01..6cc3e74da 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.84.3] - 2026-08-24
 
 ### Breaking Changes
diff --git a/packages/client/CHANGELOG.md b/packages/client/CHANGELOG.md
index cd2fa5f8c..726fa233d 100644
--- a/packages/client/CHANGELOG.md
+++ b/packages/client/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.84.3] - 2026-08-24
 
 ## [0.84.2] - 2026-08-14
diff --git a/packages/coding-agent/CHANGELOG.md b/packages/coding-agent/CHANGELOG.md
index fde46b8a5..1761c8d0f 100644
--- a/packages/coding-agent/CHANGELOG.md
+++ b/packages/coding-agent/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.84.3] - 2026-08-24
 
 ### New Features
diff --git a/packages/protocol/CHANGELOG.md b/packages/protocol/CHANGELOG.md
index 487363b2e..f0c58f21c 100644
--- a/packages/protocol/CHANGELOG.md
+++ b/packages/protocol/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.84.3] - 2026-08-24
 
 ## [0.84.2] - 2026-08-14
diff --git a/packages/server/CHANGELOG.md b/packages/server/CHANGELOG.md
index 587218275..ab89c9590 100644
--- a/packages/server/CHANGELOG.md
+++ b/packages/server/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.84.3] - 2026-08-24
 
 ## [0.84.2] - 2026-08-14
diff --git a/packages/session-backends/sqlite-node/CHANGELOG.md b/packages/session-backends/sqlite-node/CHANGELOG.md
index 59d3f84f4..c9368d125 100644
--- a/packages/session-backends/sqlite-node/CHANGELOG.md
+++ b/packages/session-backends/sqlite-node/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.84.3] - 2026-08-24
 
 ## [0.84.2] - 2026-08-14
diff --git a/packages/telemetry/CHANGELOG.md b/packages/telemetry/CHANGELOG.md
index 91cfb2656..e11e6186a 100644
--- a/packages/telemetry/CHANGELOG.md
+++ b/packages/telemetry/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.84.3] - 2026-08-24
 
 ## [0.84.2] - 2026-08-14
diff --git a/packages/tui/CHANGELOG.md b/packages/tui/CHANGELOG.md
index 4b0e494c2..cc92212ee 100644
--- a/packages/tui/CHANGELOG.md
+++ b/packages/tui/CHANGELOG.md
@@ -1,5 +1,7 @@
 # Changelog
 
+## [Unreleased]
+
 ## [0.84.3] - 2026-08-24
 
 ### Fixed