diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4b05dda..1aa5bb8a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [0.4.0](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/compare/v0.3.0...v0.4.0) (2022-07-11)
+
+
+### Features
+
+* add gcloud-auth flag ([#43](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/issues/43)) ([4bfa258](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/commit/4bfa258216f7daa9e7310a28475a628d45333212))
+* add max connections flag ([#63](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/issues/63)) ([a5d8ee8](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/commit/a5d8ee8ba2f34d8f41f4d972f6513ca9b6091aca))
+* add max-sigterm-delay flag ([#64](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/issues/64)) ([2c9864d](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/commit/2c9864d20c01b60d54402dc29d7354d1599f1efa))
+* add support for Cloud Monitoring and Cloud Trace ([#60](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/issues/60)) ([b928921](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/commit/b9289214e08b3bbbca1db2fcb7c77156791d23b7))
+* add support for Prometheus metrics ([#58](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/issues/58)) ([b6fcbf3](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/commit/b6fcbf32320151aaef282d04b4c8fd1d5e0c9049))
+
+
+### Bug Fixes
+
+* resolve data race on closing client ([#62](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/issues/62)) ([e2b40c4](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/commit/e2b40c43e3670add413cc540c3be7556a0483e0f))
+
 ## [0.3.0](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/compare/v0.2.0...v0.3.0) (2022-05-31)