diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
deleted file mode 100644
index 8e6bb54..0000000
--- a/.github/.OwlBot.lock.yaml
+++ /dev/null
@@ -1,17 +0,0 @@
-# Copyright 2025 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-docker:
-  image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:5581906b957284864632cde4e9c51d1cc66b0094990b27e689132fe5cd036046
-# created: 2025-03-05
\ No newline at end of file
diff --git a/.github/.OwlBot.yaml b/.github/.OwlBot.yaml
deleted file mode 100644
index ed6155a..0000000
--- a/.github/.OwlBot.yaml
+++ /dev/null
@@ -1,18 +0,0 @@
-# Copyright 2021 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-docker:
-  image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-
-begin-after-commit-hash: ee56c3493ec6aeb237ff515ecea949710944a20f
diff --git a/.github/release-please.yml b/.github/release-please.yml
deleted file mode 100644
index 466597e..0000000
--- a/.github/release-please.yml
+++ /dev/null
@@ -1,2 +0,0 @@
-releaseType: python
-handleGHRelease: true
diff --git a/.github/release-trigger.yml b/.github/release-trigger.yml
deleted file mode 100644
index 1a2864f..0000000
--- a/.github/release-trigger.yml
+++ /dev/null
@@ -1,2 +0,0 @@
-enabled: true
-multiScmName: google-auth-library-python-httplib2
diff --git a/.librarian/config.yaml b/.librarian/config.yaml
new file mode 100644
index 0000000..111f94d
--- /dev/null
+++ b/.librarian/config.yaml
@@ -0,0 +1,6 @@
+global_files_allowlist:
+  # Allow the container to read and write the root `CHANGELOG.md`
+  # file during the `release` step to update the latest client library
+  # versions which are hardcoded in the file.
+  - path: "CHANGELOG.md"
+    permissions: "read-write"
diff --git a/.librarian/state.yaml b/.librarian/state.yaml
new file mode 100644
index 0000000..ac8ed18
--- /dev/null
+++ b/.librarian/state.yaml
@@ -0,0 +1,11 @@
+image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator:latest
+libraries:
+  - id: google-auth-httplib2
+    version: 0.3.0
+    last_generated_commit: ""
+    apis: []
+    source_roots:
+      - .
+    preserve_regex: []
+    remove_regex: []
+    tag_format: v{version}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6b6372..eebf901 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,30 @@
 # Changelog
 
+[1]: https://pypi.org/project/google-auth-httplib2/#history
+
+## [0.3.0](https://github.com/googleapis/google-cloud-python/compare/google-auth-httplib2-v0.2.0...google-auth-httplib2-v0.3.0) (2025-10-28)
+
+
+### Features
+
+* onboard google-auth-httplib2 to librarian  ([031052721492d72495389c736431283e4b391bfa](https://github.com/googleapis/google-cloud-python/commit/031052721492d72495389c736431283e4b391bfa))
+
+
+### Bug Fixes
+
+* remove setup.cfg configuration for creating universal wheels (#191)  ([c2be0ae5537d15f20a6c81d1e51408a11ecda22e](https://github.com/googleapis/google-cloud-python/commit/c2be0ae5537d15f20a6c81d1e51408a11ecda22e))
+* drop python 3.6 (#188) * build: add docs
+* 🦉 Updates from OwlBot post-processor
+See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md
+* fix build
+* lint
+* fix build
+* remove 3.6
+* clean up
+* lint
+* lint
+--------- ([a69b725eb2f0f4538824ea2bb76581ee37ba3bd9](https://github.com/googleapis/google-cloud-python/commit/a69b725eb2f0f4538824ea2bb76581ee37ba3bd9))
+
 ## [0.2.0](https://github.com/googleapis/google-auth-library-python-httplib2/compare/v0.1.1...v0.2.0) (2023-12-12)
 
 
diff --git a/setup.py b/setup.py
index d3e5c38..015dfba 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@
 
 from setuptools import setup
 
-version = "0.2.0"
+version = "0.3.0"
 
 DEPENDENCIES = [
     "google-auth >= 1.32.0,<3.0.0",