diff --git a/.librarian/state.yaml b/.librarian/state.yaml
index ddf68e542..cbc6f9303 100644
--- a/.librarian/state.yaml
+++ b/.librarian/state.yaml
@@ -1,7 +1,7 @@
 image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:b8058df4c45e9a6e07f6b4d65b458d0d059241dd34c814f151c8bf6b89211209
 libraries:
   - id: google-auth
-    version: 2.45.0
+    version: 2.46.0
     last_generated_commit: 102d9f92ac6ed649a61efd9b208e4d1de278e9bb
     apis: []
     source_roots:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 039a85d32..bcf04f5dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,28 @@
 
 [1]: https://pypi.org/project/google-auth/#history
 
+## [2.46.0](https://github.com/googleapis/google-auth-library-python/compare/v2.45.0...v2.46.0) (2026-01-05)
+
+
+### Documentation
+
+* update urllib3 docstrings for v2 compatibility (#1903) ([3f1aeea2d1014ea1d244a4c3470e52d74d55404b](https://github.com/googleapis/google-auth-library-python/commit/3f1aeea2d1014ea1d244a4c3470e52d74d55404b))
+
+
+### Features
+
+* Recognize workload certificate config in has_default_client_cert_source for mTLS for Agentic Identities (#1907) ([0b9107d573123e358c347ffa067637f992af61b4](https://github.com/googleapis/google-auth-library-python/commit/0b9107d573123e358c347ffa067637f992af61b4))
+
+
+### Bug Fixes
+
+* add types to default and verify_token and Request __init__ based on comments in the source code. (#1588) ([59a5f588f7793b59d923a4185c8c07738da618f7](https://github.com/googleapis/google-auth-library-python/commit/59a5f588f7793b59d923a4185c8c07738da618f7))
+* fix the document of secure_authorized_session (#1536) ([5d0014707fc359782df5ccfcaa75fd372fe9dce3](https://github.com/googleapis/google-auth-library-python/commit/5d0014707fc359782df5ccfcaa75fd372fe9dce3))
+* remove setup.cfg configuration for creating universal wheels (#1693) ([c767531ce05a89002d109f595187aff1fcaacfb7](https://github.com/googleapis/google-auth-library-python/commit/c767531ce05a89002d109f595187aff1fcaacfb7))
+* use .read() instead of .content.read() in aiohttp transport (#1899) ([12f4470f808809e8abf1141f98d88ab720c3899b](https://github.com/googleapis/google-auth-library-python/commit/12f4470f808809e8abf1141f98d88ab720c3899b))
+* raise RefreshError for missing token in impersonated credentials (#1897) ([94d04e090fdfc61926dd32bc1d65f8820b9cede5](https://github.com/googleapis/google-auth-library-python/commit/94d04e090fdfc61926dd32bc1d65f8820b9cede5))
+* Fix test coverage for mtls_helper (#1886) ([02e71631fe275d93825c2e957e830773e75133f7](https://github.com/googleapis/google-auth-library-python/commit/02e71631fe275d93825c2e957e830773e75133f7))
+
 ## [2.45.0](https://github.com/googleapis/google-auth-library-python/compare/v2.44.0...v2.45.0) (2025-12-15)
 
 
diff --git a/google/auth/version.py b/google/auth/version.py
index a833feb51..9447bded1 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__ = "2.45.0"
+__version__ = "2.46.0"