diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2aed50b..4fcfdf7 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.8.3"
+  ".": "1.9.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1592043..bb63533 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,27 @@
 # Changelog
 
+## [1.9.0](https://github.com/googleapis/python-functions/compare/v1.8.3...v1.9.0) (2022-12-14)
+
+
+### Features
+
+* Add support for `google.cloud.functions.__version__` ([8fa10be](https://github.com/googleapis/python-functions/commit/8fa10be9991622bfba4a5f974917281ff79bd04e))
+* Add typing to proto.Message based class attributes ([8fa10be](https://github.com/googleapis/python-functions/commit/8fa10be9991622bfba4a5f974917281ff79bd04e))
+
+
+### Bug Fixes
+
+* Add dict typing for client_options ([8fa10be](https://github.com/googleapis/python-functions/commit/8fa10be9991622bfba4a5f974917281ff79bd04e))
+* **deps:** Require google-api-core >=1.34.0, >=2.11.0  ([716d441](https://github.com/googleapis/python-functions/commit/716d4413770dc29bd8c3cd21ac5d4abce8053521))
+* Drop usage of pkg_resources ([716d441](https://github.com/googleapis/python-functions/commit/716d4413770dc29bd8c3cd21ac5d4abce8053521))
+* Fix timeout default values ([716d441](https://github.com/googleapis/python-functions/commit/716d4413770dc29bd8c3cd21ac5d4abce8053521))
+
+
+### Documentation
+
+* **samples:** Snippetgen handling of repeated enum field ([8fa10be](https://github.com/googleapis/python-functions/commit/8fa10be9991622bfba4a5f974917281ff79bd04e))
+* **samples:** Snippetgen should call await on the operation coroutine before calling result ([716d441](https://github.com/googleapis/python-functions/commit/716d4413770dc29bd8c3cd21ac5d4abce8053521))
+
 ## [1.8.3](https://github.com/googleapis/python-functions/compare/v1.8.2...v1.8.3) (2022-10-07)
 
 
diff --git a/google/cloud/functions/gapic_version.py b/google/cloud/functions/gapic_version.py
index 91ef154..163d151 100644
--- a/google/cloud/functions/gapic_version.py
+++ b/google/cloud/functions/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.8.3"  # {x-release-please-version}
+__version__ = "1.9.0"  # {x-release-please-version}
diff --git a/google/cloud/functions_v1/gapic_version.py b/google/cloud/functions_v1/gapic_version.py
index 91ef154..163d151 100644
--- a/google/cloud/functions_v1/gapic_version.py
+++ b/google/cloud/functions_v1/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.8.3"  # {x-release-please-version}
+__version__ = "1.9.0"  # {x-release-please-version}
diff --git a/google/cloud/functions_v2/gapic_version.py b/google/cloud/functions_v2/gapic_version.py
index 91ef154..163d151 100644
--- a/google/cloud/functions_v2/gapic_version.py
+++ b/google/cloud/functions_v2/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "1.8.3"  # {x-release-please-version}
+__version__ = "1.9.0"  # {x-release-please-version}
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.functions.v1.json b/samples/generated_samples/snippet_metadata_google.cloud.functions.v1.json
index 3a16e5f..09c8986 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.functions.v1.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.functions.v1.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-functions",
-    "version": "0.1.0"
+    "version": "1.9.0"
   },
   "snippets": [
     {
diff --git a/samples/generated_samples/snippet_metadata_google.cloud.functions.v2.json b/samples/generated_samples/snippet_metadata_google.cloud.functions.v2.json
index 0dbb0a2..0defb0d 100644
--- a/samples/generated_samples/snippet_metadata_google.cloud.functions.v2.json
+++ b/samples/generated_samples/snippet_metadata_google.cloud.functions.v2.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-functions",
-    "version": "0.1.0"
+    "version": "1.9.0"
   },
   "snippets": [
     {