diff --git a/api_core/CHANGELOG.md b/api_core/CHANGELOG.md
index 2a94fab2714d..6c652da80905 100644
--- a/api_core/CHANGELOG.md
+++ b/api_core/CHANGELOG.md
@@ -4,6 +4,15 @@
 
 [1]: https://pypi.org/project/google-api-core/#history
 
+## 1.5.0
+
+### New Features
+- Add bidi, Bidirection Streaming, to api-core ([#6211](https://github.com/GoogleCloudPlatform/google-cloud-python/pull/6211))
+
+
+### Internal / Testing Changes
+- Use new Nox ([#6175](https://github.com/GoogleCloudPlatform/google-cloud-python/pull/6175))
+
 ## 1.4.1
 
 ### Dependencies
diff --git a/api_core/setup.py b/api_core/setup.py
index 308550d26b77..be0a35ebc188 100644
--- a/api_core/setup.py
+++ b/api_core/setup.py
@@ -22,7 +22,7 @@
 
 name = 'google-api-core'
 description = 'Google API client core library'
-version = '1.4.1'
+version = '1.5.0'
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'