diff --git a/CHANGELOG.md b/CHANGELOG.md
index 286a9b1a..34b7953c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## [3.0.0](https://github.com/googleapis/google-cloudevents/compare/v2.1.6...v3.0.0) (2026-02-24)
+
+
+### ⚠ BREAKING CHANGES
+
+* Fix namespace for Ruby and PHP
+
+### Bug Fixes
+
+* Fix namespace for Ruby and PHP ([b2b1516](https://github.com/googleapis/google-cloudevents/commit/b2b1516d342364270974623c60b8fda6a4a58e6c))
+
 ## [2.1.6](https://github.com/googleapis/google-cloudevents/compare/v2.1.5...v2.1.6) (2023-11-29)
 
 
diff --git a/version.txt b/version.txt
index 399088bf..4a36342f 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-2.1.6
+3.0.0