diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index cf198b9..a09efe7 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.11.0"
+  ".": "1.12.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3511e8b..30c3e33 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog
 
+## [1.12.0](https://github.com/googleapis/python-functions/compare/v1.11.0...v1.12.0) (2023-03-23)
+
+
+### Features
+
+* Add `available_cpu` field ([af189a0](https://github.com/googleapis/python-functions/commit/af189a0b5f2ef5c29f017cb4265f0011074ce366))
+* Add `kms_key_name` field to ServiceConfig (the CMEK use case) ([af189a0](https://github.com/googleapis/python-functions/commit/af189a0b5f2ef5c29f017cb4265f0011074ce366))
+* Add `max_instance_request_concurrency` field ([af189a0](https://github.com/googleapis/python-functions/commit/af189a0b5f2ef5c29f017cb4265f0011074ce366))
+* Add `security_level` field ([af189a0](https://github.com/googleapis/python-functions/commit/af189a0b5f2ef5c29f017cb4265f0011074ce366))
+
+
+### Documentation
+
+* Fix formatting of request arg in docstring ([#259](https://github.com/googleapis/python-functions/issues/259)) ([8befe21](https://github.com/googleapis/python-functions/commit/8befe21b1d7bc16112f17fe32c1280ae7fa52ce2))
+
 ## [1.11.0](https://github.com/googleapis/python-functions/compare/v1.10.1...v1.11.0) (2023-02-16)
 
 
diff --git a/google/cloud/functions/gapic_version.py b/google/cloud/functions/gapic_version.py
index 98fb3f5..7138f21 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__ = "1.11.0"  # {x-release-please-version}
+__version__ = "1.12.0"  # {x-release-please-version}
diff --git a/google/cloud/functions_v1/gapic_version.py b/google/cloud/functions_v1/gapic_version.py
index 98fb3f5..7138f21 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__ = "1.11.0"  # {x-release-please-version}
+__version__ = "1.12.0"  # {x-release-please-version}
diff --git a/google/cloud/functions_v2/gapic_version.py b/google/cloud/functions_v2/gapic_version.py
index 98fb3f5..7138f21 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__ = "1.11.0"  # {x-release-please-version}
+__version__ = "1.12.0"  # {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..0d45d5a 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": "1.12.0"
   },
   "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..1ab1619 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": "1.12.0"
   },
   "snippets": [
     {