diff --git a/packages/google-cloud-eventarc-publishing/.release-please-manifest.json b/packages/google-cloud-eventarc-publishing/.release-please-manifest.json
index 4cff5b91767e..f1c1e5884396 100644
--- a/packages/google-cloud-eventarc-publishing/.release-please-manifest.json
+++ b/packages/google-cloud-eventarc-publishing/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.4.2"
+  ".": "0.5.0"
 }
diff --git a/packages/google-cloud-eventarc-publishing/CHANGELOG.md b/packages/google-cloud-eventarc-publishing/CHANGELOG.md
index 087922dfcd56..2849d400ad8e 100644
--- a/packages/google-cloud-eventarc-publishing/CHANGELOG.md
+++ b/packages/google-cloud-eventarc-publishing/CHANGELOG.md
@@ -1,5 +1,28 @@
 # Changelog
 
+## [0.5.0](https://github.com/googleapis/python-eventarc-publishing/compare/v0.4.2...v0.5.0) (2022-12-14)
+
+
+### Features
+
+* Add support for `google.cloud.eventarc_publishing.__version__` ([9c61149](https://github.com/googleapis/python-eventarc-publishing/commit/9c61149b5ab2896807783fde2984aa83eda8c357))
+* Add typing to proto.Message based class attributes ([9c61149](https://github.com/googleapis/python-eventarc-publishing/commit/9c61149b5ab2896807783fde2984aa83eda8c357))
+* Introduce the event publishing using JSON representation of CloudEvents ([9c61149](https://github.com/googleapis/python-eventarc-publishing/commit/9c61149b5ab2896807783fde2984aa83eda8c357))
+
+
+### Bug Fixes
+
+* Add dict typing for client_options ([9c61149](https://github.com/googleapis/python-eventarc-publishing/commit/9c61149b5ab2896807783fde2984aa83eda8c357))
+* **deps:** Require google-api-core >=1.34.0, >=2.11.0  ([a0b28f9](https://github.com/googleapis/python-eventarc-publishing/commit/a0b28f99301905dab3fb30092ff6a4ac3be7f492))
+* Drop usage of pkg_resources ([a0b28f9](https://github.com/googleapis/python-eventarc-publishing/commit/a0b28f99301905dab3fb30092ff6a4ac3be7f492))
+* Fix timeout default values ([a0b28f9](https://github.com/googleapis/python-eventarc-publishing/commit/a0b28f99301905dab3fb30092ff6a4ac3be7f492))
+
+
+### Documentation
+
+* **samples:** Snippetgen handling of repeated enum field ([9c61149](https://github.com/googleapis/python-eventarc-publishing/commit/9c61149b5ab2896807783fde2984aa83eda8c357))
+* **samples:** Snippetgen should call await on the operation coroutine before calling result ([a0b28f9](https://github.com/googleapis/python-eventarc-publishing/commit/a0b28f99301905dab3fb30092ff6a4ac3be7f492))
+
 ## [0.4.2](https://github.com/googleapis/python-eventarc-publishing/compare/v0.4.1...v0.4.2) (2022-10-10)
 
 
diff --git a/packages/google-cloud-eventarc-publishing/google/cloud/eventarc_publishing/gapic_version.py b/packages/google-cloud-eventarc-publishing/google/cloud/eventarc_publishing/gapic_version.py
index 27a8636015f1..371eb6b313f9 100644
--- a/packages/google-cloud-eventarc-publishing/google/cloud/eventarc_publishing/gapic_version.py
+++ b/packages/google-cloud-eventarc-publishing/google/cloud/eventarc_publishing/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.4.2"  # {x-release-please-version}
+__version__ = "0.5.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-eventarc-publishing/google/cloud/eventarc_publishing_v1/gapic_version.py b/packages/google-cloud-eventarc-publishing/google/cloud/eventarc_publishing_v1/gapic_version.py
index 27a8636015f1..371eb6b313f9 100644
--- a/packages/google-cloud-eventarc-publishing/google/cloud/eventarc_publishing_v1/gapic_version.py
+++ b/packages/google-cloud-eventarc-publishing/google/cloud/eventarc_publishing_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "0.4.2"  # {x-release-please-version}
+__version__ = "0.5.0"  # {x-release-please-version}
diff --git a/packages/google-cloud-eventarc-publishing/samples/generated_samples/snippet_metadata_google.cloud.eventarc.publishing.v1.json b/packages/google-cloud-eventarc-publishing/samples/generated_samples/snippet_metadata_google.cloud.eventarc.publishing.v1.json
index 315310cec9dd..dc296f3eddeb 100644
--- a/packages/google-cloud-eventarc-publishing/samples/generated_samples/snippet_metadata_google.cloud.eventarc.publishing.v1.json
+++ b/packages/google-cloud-eventarc-publishing/samples/generated_samples/snippet_metadata_google.cloud.eventarc.publishing.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-eventarc-publishing",
-    "version": "0.1.0"
+    "version": "0.5.0"
   },
   "snippets": [
     {