diff --git a/CHANGELOG.md b/CHANGELOG.md
index f1d61e3..19926e4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## [4.6.0](https://github.com/googleapis/common-protos-php/compare/v4.5.0...v4.6.0) (2024-04-03)
+
+
+### Features
+
+* Add `api_version` extension to `ServiceOptions`, for collaborative versioning ([#82](https://github.com/googleapis/common-protos-php/issues/82)) ([2ff1de8](https://github.com/googleapis/common-protos-php/commit/2ff1de8c6ffa2b125f502516cbad1315264a9b7b))
+* Add `ErrorReason.LOCATION_POLICY_VIOLATED` enum value ([2ff1de8](https://github.com/googleapis/common-protos-php/commit/2ff1de8c6ffa2b125f502516cbad1315264a9b7b))
+* Add `Publishing.rest_reference_documentation_uri` to aid client library publication ([2ff1de8](https://github.com/googleapis/common-protos-php/commit/2ff1de8c6ffa2b125f502516cbad1315264a9b7b))
+
 ## [4.5.0](https://github.com/googleapis/common-protos-php/compare/v4.4.0...v4.5.0) (2023-11-29)