CHANGELOG.md in google-cloud-pubsub-2.15.0 vs CHANGELOG.md in google-cloud-pubsub-2.15.1

@@ -1,6 +1,12 @@
 # Release History
 
+### 2.15.1 (2023-02-23)
+
+#### Documentation
+
+* Correct default value for streams ([#20485](https://github.com/googleapis/google-cloud-ruby/issues/20485)) 
+
 ### 2.15.0 (2023-01-22)
 
 #### Features
 
 * support publisher compression ([#19910](https://github.com/googleapis/google-cloud-ruby/issues/19910))