diff --git a/.release-please-bulk-manifest.json b/.release-please-bulk-manifest.json
index a7fdb96a121b..9d0d9e98a804 100644
--- a/.release-please-bulk-manifest.json
+++ b/.release-please-bulk-manifest.json
@@ -2,8 +2,8 @@
   "packages/bigquery-magics": "0.15.1",
   "packages/db-dtypes": "1.7.2",
   "packages/django-google-spanner": "5.2.0",
-  "packages/gapic-generator": "1.43.0",
-  "packages/gcp-sphinx-docfx-yaml": "3.3.3",
+  "packages/gapic-generator": "1.43.1",
+  "packages/gcp-sphinx-docfx-yaml": "3.4.0",
   "packages/google-ads-admanager": "0.10.7",
   "packages/google-ads-datamanager": "0.9.4",
   "packages/google-ads-marketingplatform-admin": "0.6.2",
@@ -53,7 +53,7 @@
   "packages/google-cloud-beyondcorp-clientgateways": "0.8.1",
   "packages/google-cloud-biglake": "0.5.2",
   "packages/google-cloud-biglake-hive": "0.3.5",
-  "packages/google-cloud-bigquery": "3.46.1",
+  "packages/google-cloud-bigquery": "3.46.2",
   "packages/google-cloud-bigquery-analyticshub": "0.9.1",
   "packages/google-cloud-bigquery-biglake": "0.8.1",
   "packages/google-cloud-bigquery-connection": "1.23.0",
@@ -64,7 +64,7 @@
   "packages/google-cloud-bigquery-migration": "0.15.2",
   "packages/google-cloud-bigquery-reservation": "1.28.0",
   "packages/google-cloud-bigquery-storage": "2.42.0",
-  "packages/google-cloud-bigtable": "2.50.0",
+  "packages/google-cloud-bigtable": "2.50.1",
   "packages/google-cloud-billing": "1.21.0",
   "packages/google-cloud-billing-budgets": "1.22.0",
   "packages/google-cloud-binary-authorization": "1.20.0",
diff --git a/librarian.yaml b/librarian.yaml
index 8ba9d20718b7..7ad62c093ef1 100644
--- a/librarian.yaml
+++ b/librarian.yaml
@@ -92,11 +92,11 @@ libraries:
     python:
       library_type: INTEGRATION
   - name: gapic-generator
-    version: 1.43.0
+    version: 1.43.1
     python:
       library_type: CORE
   - name: gcp-sphinx-docfx-yaml
-    version: 3.3.3
+    version: 3.4.0
     python:
       library_type: OTHER
   - name: google-ads-admanager
@@ -570,7 +570,7 @@ libraries:
     python:
       default_version: v1beta
   - name: google-cloud-bigquery
-    version: 3.46.1
+    version: 3.46.2
     python:
       library_type: GAPIC_COMBO
       metadata_name_override: bigquery
@@ -664,7 +664,7 @@ libraries:
       metadata_name_override: bigquerystorage
       default_version: v1
   - name: google-cloud-bigtable
-    version: 2.50.0
+    version: 2.50.1
     apis:
       - path: google/bigtable/v2
       - path: google/bigtable/admin/v2
diff --git a/packages/gapic-generator/CHANGELOG.md b/packages/gapic-generator/CHANGELOG.md
index ada7b7661ebc..a4924ab33d4e 100644
--- a/packages/gapic-generator/CHANGELOG.md
+++ b/packages/gapic-generator/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/gapic-generator/#history
 
+## [1.43.1](https://github.com/googleapis/google-cloud-python/compare/gapic-generator-v1.43.0...gapic-generator-v1.43.1) (2026-10-10)
+
+
+### Bug Fixes
+
+* **gapic-generator:** do not emit empty routing metadata on client-streaming RPCs ([#18591](https://github.com/googleapis/google-cloud-python/issues/18591)) ([bbdd643](https://github.com/googleapis/google-cloud-python/commit/bbdd643b91665b749da3fe3d5b39d2450caec2c2))
+
 ## [1.43.0](https://github.com/googleapis/google-cloud-python/compare/gapic-generator-v1.42.0...gapic-generator-v1.43.0) (2026-10-08)
 
 
diff --git a/packages/gapic-generator/setup.py b/packages/gapic-generator/setup.py
index 91c6ace31960..5be9395062f5 100644
--- a/packages/gapic-generator/setup.py
+++ b/packages/gapic-generator/setup.py
@@ -22,7 +22,7 @@
 name = "gapic-generator"
 description = "Google API Client Generator for Python"
 url = "https://github.com/googleapis/google-cloud-python/tree/main/packages/gapic-generator"
-version = "1.43.0"
+version = "1.43.1"
 release_status = "Development Status :: 5 - Production/Stable"
 dependencies = [
     # Ensure that the lower bounds of these dependencies match what we have in the
diff --git a/packages/gcp-sphinx-docfx-yaml/CHANGELOG.md b/packages/gcp-sphinx-docfx-yaml/CHANGELOG.md
index 738e55564c16..e0817f2fe23b 100644
--- a/packages/gcp-sphinx-docfx-yaml/CHANGELOG.md
+++ b/packages/gcp-sphinx-docfx-yaml/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/gcp-sphinx-docfx-yaml/#history
 
+## [3.4.0](https://github.com/googleapis/google-cloud-python/compare/gcp-sphinx-docfx-yaml-v3.3.3...gcp-sphinx-docfx-yaml-v3.4.0) (2026-10-10)
+
+
+### Features
+
+* **gcp-sphinx-docfx-yaml:** optimize performance ([#18588](https://github.com/googleapis/google-cloud-python/issues/18588)) ([cf1a0e5](https://github.com/googleapis/google-cloud-python/commit/cf1a0e575932f1670c1714c0aa6018955292015b))
+
 ## [3.3.3](https://github.com/googleapis/google-cloud-python/compare/gcp-sphinx-docfx-yaml-v3.3.2...gcp-sphinx-docfx-yaml-v3.3.3) (2026-10-01)
 
 
diff --git a/packages/gcp-sphinx-docfx-yaml/setup.py b/packages/gcp-sphinx-docfx-yaml/setup.py
index 7e2dce1dca3d..55150c8b85f5 100644
--- a/packages/gcp-sphinx-docfx-yaml/setup.py
+++ b/packages/gcp-sphinx-docfx-yaml/setup.py
@@ -17,7 +17,7 @@
 
 name = "gcp-sphinx-docfx-yaml"
 description = "Sphinx Python Domain to DocFX YAML Generator"
-version = "3.3.3"
+version = "3.4.0"
 dependencies = [
     "black",
     "gcp-docuploader",
diff --git a/packages/gcp-sphinx-docfx-yaml/tests/testdata/handwritten/google/cloud/storage/version.py b/packages/gcp-sphinx-docfx-yaml/tests/testdata/handwritten/google/cloud/storage/version.py
index 622eb78622a7..b62c7c031954 100644
--- a/packages/gcp-sphinx-docfx-yaml/tests/testdata/handwritten/google/cloud/storage/version.py
+++ b/packages/gcp-sphinx-docfx-yaml/tests/testdata/handwritten/google/cloud/storage/version.py
@@ -13,4 +13,4 @@
 # limitations under the License.
 
 # Original snapshotted version is 2.5.0.
-__version__ = "3.3.3"
+__version__ = "3.4.0"
diff --git a/packages/gcp-sphinx-docfx-yaml/tests/testdata/non-cloud/pandas_gbq/version.py b/packages/gcp-sphinx-docfx-yaml/tests/testdata/non-cloud/pandas_gbq/version.py
index 3a8d7cc5fdf5..07af5b739be7 100644
--- a/packages/gcp-sphinx-docfx-yaml/tests/testdata/non-cloud/pandas_gbq/version.py
+++ b/packages/gcp-sphinx-docfx-yaml/tests/testdata/non-cloud/pandas_gbq/version.py
@@ -3,4 +3,4 @@
 # license that can be found in the LICENSE file.
 
 # Original snapshotted version is 0.19.1.
-__version__ = "3.3.3"
+__version__ = "3.4.0"
diff --git a/packages/google-cloud-bigquery/CHANGELOG.md b/packages/google-cloud-bigquery/CHANGELOG.md
index 71079e69c0f1..8f66ce572161 100644
--- a/packages/google-cloud-bigquery/CHANGELOG.md
+++ b/packages/google-cloud-bigquery/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-bigquery/#history
 
+## [3.46.2](https://github.com/googleapis/google-cloud-python/compare/google-cloud-bigquery-v3.46.1...google-cloud-bigquery-v3.46.2) (2026-10-10)
+
+
+### Bug Fixes
+
+* **bigquery:** drop startIndex whenever a page token is sent ([#18603](https://github.com/googleapis/google-cloud-python/issues/18603)) ([fc6eae3](https://github.com/googleapis/google-cloud-python/commit/fc6eae3bbcea47d00f190d4bab51bef80e838a3a))
+
 ## [3.46.1](https://github.com/googleapis/google-cloud-python/compare/google-cloud-bigquery-v3.46.0...google-cloud-bigquery-v3.46.1) (2026-10-02)
 
 
diff --git a/packages/google-cloud-bigquery/google/cloud/bigquery/version.py b/packages/google-cloud-bigquery/google/cloud/bigquery/version.py
index ad46e1c634c6..b0e29ebd1d97 100644
--- a/packages/google-cloud-bigquery/google/cloud/bigquery/version.py
+++ b/packages/google-cloud-bigquery/google/cloud/bigquery/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "3.46.1"
+__version__ = "3.46.2"
diff --git a/packages/google-cloud-bigtable/CHANGELOG.md b/packages/google-cloud-bigtable/CHANGELOG.md
index 22aa574b9028..24958b464ac3 100644
--- a/packages/google-cloud-bigtable/CHANGELOG.md
+++ b/packages/google-cloud-bigtable/CHANGELOG.md
@@ -4,6 +4,14 @@
 
 [1]: https://pypi.org/project/google-cloud-bigtable/#history
 
+## [2.50.1](https://github.com/googleapis/google-cloud-python/compare/google-cloud-bigtable-v2.50.0...google-cloud-bigtable-v2.50.1) (2026-10-10)
+
+
+### Bug Fixes
+
+* **bigtable:** avoid hang when batcher not closed on process exit ([#18610](https://github.com/googleapis/google-cloud-python/issues/18610)) ([7674c91](https://github.com/googleapis/google-cloud-python/commit/7674c91a81a984e01166f72a8895cb18c8a8216b))
+* **bigtable:** fix authentication scopes for metrics exporter ([#18609](https://github.com/googleapis/google-cloud-python/issues/18609)) ([722d34e](https://github.com/googleapis/google-cloud-python/commit/722d34e519dbb8305c4a48ac83790078f5ff9d57))
+
 ## [2.50.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-bigtable-v2.49.0...google-cloud-bigtable-v2.50.0) (2026-10-08)
 
 
diff --git a/packages/google-cloud-bigtable/google/cloud/bigtable/gapic_version.py b/packages/google-cloud-bigtable/google/cloud/bigtable/gapic_version.py
index 30eea17c39a6..a08a22fdd46f 100644
--- a/packages/google-cloud-bigtable/google/cloud/bigtable/gapic_version.py
+++ b/packages/google-cloud-bigtable/google/cloud/bigtable/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.50.0"  # {x-release-please-version}
+__version__ = "2.50.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-bigtable/google/cloud/bigtable_admin/gapic_version.py b/packages/google-cloud-bigtable/google/cloud/bigtable_admin/gapic_version.py
index 30eea17c39a6..a08a22fdd46f 100644
--- a/packages/google-cloud-bigtable/google/cloud/bigtable_admin/gapic_version.py
+++ b/packages/google-cloud-bigtable/google/cloud/bigtable_admin/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.50.0"  # {x-release-please-version}
+__version__ = "2.50.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-bigtable/google/cloud/bigtable_admin_v2/gapic_version.py b/packages/google-cloud-bigtable/google/cloud/bigtable_admin_v2/gapic_version.py
index 30eea17c39a6..a08a22fdd46f 100644
--- a/packages/google-cloud-bigtable/google/cloud/bigtable_admin_v2/gapic_version.py
+++ b/packages/google-cloud-bigtable/google/cloud/bigtable_admin_v2/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.50.0"  # {x-release-please-version}
+__version__ = "2.50.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-bigtable/google/cloud/bigtable_v2/gapic_version.py b/packages/google-cloud-bigtable/google/cloud/bigtable_v2/gapic_version.py
index 30eea17c39a6..a08a22fdd46f 100644
--- a/packages/google-cloud-bigtable/google/cloud/bigtable_v2/gapic_version.py
+++ b/packages/google-cloud-bigtable/google/cloud/bigtable_v2/gapic_version.py
@@ -13,4 +13,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-__version__ = "2.50.0"  # {x-release-please-version}
+__version__ = "2.50.1"  # {x-release-please-version}
diff --git a/packages/google-cloud-bigtable/samples/generated_samples/snippet_metadata_google.bigtable.admin.v2.json b/packages/google-cloud-bigtable/samples/generated_samples/snippet_metadata_google.bigtable.admin.v2.json
index 381ae13100c9..8099190c466a 100644
--- a/packages/google-cloud-bigtable/samples/generated_samples/snippet_metadata_google.bigtable.admin.v2.json
+++ b/packages/google-cloud-bigtable/samples/generated_samples/snippet_metadata_google.bigtable.admin.v2.json
@@ -8,7 +8,7 @@
     ],
     "language": "PYTHON",
     "name": "google-cloud-bigtable",
-    "version": "2.50.0"
+    "version": "2.50.1"
   },
   "snippets": [
     {