diff --git a/CHANGELOG.md b/CHANGELOG.md
index e00e424c..e8e5e7a5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,17 @@
 
 [1]: https://pypi.org/project/google-api-core/#history
 
+## [2.0.0b1](https://www.github.com/googleapis/python-api-core/compare/v1.31.1...v2.0.0b1) (2021-08-03)
+
+
+### ⚠ BREAKING CHANGES
+
+* drop support for Python 2.7 / 3.5 ([#212](https://www.github.com/googleapis/python-api-core/issues/212)) ([a30f004](https://www.github.com/googleapis/python-api-core/commit/a30f004e74f709d46e905dd819c71f43354e9ac9))
+
+### Bug Fixes
+
+* strip trailing _ from field mask paths ([#228](https://www.github.com/googleapis/python-api-core/issues/228)) ([ff6ef1b](https://www.github.com/googleapis/python-api-core/commit/ff6ef1bd07fa68307b7c82c910416d770e7b3416))
+
 ### [1.31.1](https://www.github.com/googleapis/python-api-core/compare/v1.31.0...v1.31.1) (2021-07-26)
 
 
diff --git a/google/api_core/version.py b/google/api_core/version.py
index c9cdad6f..5fa77444 100644
--- a/google/api_core/version.py
+++ b/google/api_core/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "2.0.0-b1"
+__version__ = "2.0.0b1"