diff --git a/CHANGELOG.md b/CHANGELOG.md
index 88fd400..78e0b50 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-auth/#history
 
+## [2.0.0b1](https://www.github.com/googleapis/google-auth-library-python/compare/v1.34.0...v2.0.0b1) (2021-08-03)
+
+
+### ⚠ BREAKING CHANGES
+
+* drop support for Python 2.7 ([#778](https://www.github.com/googleapis/google-auth-library-python/issues/778)) ([560cf1e](https://www.github.com/googleapis/google-auth-library-python/commit/560cf1ed02a900436c5d9e0a0fb3f94b5fd98c55))
+
 ## [1.34.0](https://www.github.com/googleapis/google-auth-library-python/compare/v1.33.1...v1.34.0) (2021-07-23)
 
 
diff --git a/google/auth/version.py b/google/auth/version.py
index bd3c61a..db6d3e9 100644
--- a/google/auth/version.py
+++ b/google/auth/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "1.34.0"
+__version__ = "2.0.0b1"