diff --git a/Crashlytics/CHANGELOG.md b/Crashlytics/CHANGELOG.md
index c4dffc0540b..e6ad6115d48 100644
--- a/Crashlytics/CHANGELOG.md
+++ b/Crashlytics/CHANGELOG.md
@@ -1,4 +1,4 @@
-# Unreleased
+# 12.9.0
 - [fixed] Conformed to Mach IPC security restrictions. (#15393)
 
 # 12.4.0
diff --git a/FirebaseAI/CHANGELOG.md b/FirebaseAI/CHANGELOG.md
index 9b9e2e02ff2..91d1c05b34e 100644
--- a/FirebaseAI/CHANGELOG.md
+++ b/FirebaseAI/CHANGELOG.md
@@ -1,4 +1,4 @@
-# Unreleased
+# 12.9.0
 - [changed] The URL context tool APIs are now GA.
 - [feature] Added support for implicit caching (context caching) metadata in `GenerateContentResponse`.
   You can now access `cachedContentTokenCount` and `cacheTokensDetails` in `UsageMetadata` to see
diff --git a/FirebaseAuth/CHANGELOG.md b/FirebaseAuth/CHANGELOG.md
index 77339453540..cd87b5001d3 100644
--- a/FirebaseAuth/CHANGELOG.md
+++ b/FirebaseAuth/CHANGELOG.md
@@ -1,4 +1,4 @@
-# Unreleased
+# 12.9.0
 - [fixed] Stop doing unnecessary AppCheck token refreshes. Introduced
   in 11.0.0. (#15372)
 
diff --git a/FirebaseStorage/CHANGELOG.md b/FirebaseStorage/CHANGELOG.md
index 06a94757050..b0bfb4076b9 100644
--- a/FirebaseStorage/CHANGELOG.md
+++ b/FirebaseStorage/CHANGELOG.md
@@ -1,4 +1,4 @@
-# Unreleased
+# 12.9.0
 - [fixed] Fix "weak never mutated" build warning introduced in Xcode 26.2.
 
 # 12.0.0