chore: release 1.31.0 (#203)

release-please[bot] · web-flow · commit 07a8ce31e1de · 2021-07-09T14:01:21.000-04:00
Co-authored-by: release-please[bot] &lt;55107282+release-please[bot]@users.noreply.github.com&gt;
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,6 +4,18 @@
 
 [1]: https://pypi.org/project/google-api-core/#history
 
+## [1.31.0](https://www.github.com/googleapis/python-api-core/compare/v1.30.0...v1.31.0) (2021-07-07)
+
+
+### Features
+
+* add ServiceUnavailable exception to polling retries ([#184](https://www.github.com/googleapis/python-api-core/issues/184)) ([11032cf](https://www.github.com/googleapis/python-api-core/commit/11032cf08ecc16dd252a6cda8b33b0b28ec4f4ba))
+
+
+### Bug Fixes
+
+* undprecate entity factory helpers ([#101](https://www.github.com/googleapis/python-api-core/issues/101)) ([1fbee03](https://www.github.com/googleapis/python-api-core/commit/1fbee03495a136eef3d6aaa5ea0aadd6e4b58e8b)), closes [#100](https://www.github.com/googleapis/python-api-core/issues/100)
+
 ## [1.30.0](https://www.github.com/googleapis/python-api-core/compare/v1.29.0...v1.30.0) (2021-06-08)
 
 
diff --git 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__ = "1.30.0"
+__version__ = "1.31.0"
