diff --git a/.release-please-bulk-manifest.json b/.release-please-bulk-manifest.json
index 5f1d98f623e6..c3e3507a1cc9 100644
--- a/.release-please-bulk-manifest.json
+++ b/.release-please-bulk-manifest.json
@@ -10,7 +10,7 @@
   "packages/google-ai-generativelanguage": "0.12.0",
   "packages/google-analytics-admin": "0.30.1",
   "packages/google-analytics-data": "0.23.0",
-  "packages/google-api-core": "2.37.0",
+  "packages/google-api-core": "2.38.0",
   "packages/google-apps-card": "0.7.0",
   "packages/google-apps-chat": "0.10.5",
   "packages/google-apps-events-subscriptions": "0.6.0",
@@ -64,7 +64,7 @@
   "packages/google-cloud-bigquery-migration": "0.15.1",
   "packages/google-cloud-bigquery-reservation": "1.27.0",
   "packages/google-cloud-bigquery-storage": "2.41.0",
-  "packages/google-cloud-bigtable": "2.45.0",
+  "packages/google-cloud-bigtable": "2.46.0",
   "packages/google-cloud-billing": "1.20.0",
   "packages/google-cloud-billing-budgets": "1.21.0",
   "packages/google-cloud-binary-authorization": "1.19.1",
diff --git a/librarian.yaml b/librarian.yaml
index e33e3e95193c..8ab9b464c0ba 100644
--- a/librarian.yaml
+++ b/librarian.yaml
@@ -152,7 +152,7 @@ libraries:
       metadata_name_override: analyticsdata
       default_version: v1beta
   - name: google-api-core
-    version: 2.37.0
+    version: 2.38.0
     python:
       library_type: CORE
   - name: google-apps-card
@@ -663,7 +663,7 @@ libraries:
       metadata_name_override: bigquerystorage
       default_version: v1
   - name: google-cloud-bigtable
-    version: 2.45.0
+    version: 2.46.0
     apis:
       - path: google/bigtable/v2
       - path: google/bigtable/admin/v2
diff --git a/packages/google-api-core/CHANGELOG.md b/packages/google-api-core/CHANGELOG.md
index e138d6b5a306..d33bae43ddb4 100644
--- a/packages/google-api-core/CHANGELOG.md
+++ b/packages/google-api-core/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-api-core/#history
 
+## [2.38.0](https://github.com/googleapis/google-cloud-python/compare/google-api-core-v2.37.0...google-api-core-v2.38.0) (2026-09-15)
+
+
+### Features
+
+* **core:** add request hook to enrich T4 network spans with GCP resource attributes (E) ([#18272](https://github.com/googleapis/google-cloud-python/issues/18272)) ([1ca95e9](https://github.com/googleapis/google-cloud-python/commit/1ca95e90199cf0a40077437a4c00f8039599dd5e))
+
 ## [2.37.0](https://github.com/googleapis/google-cloud-python/compare/google-api-core-v2.36.0...google-api-core-v2.37.0) (2026-09-14)
 
 
diff --git a/packages/google-api-core/google/api_core/version.py b/packages/google-api-core/google/api_core/version.py
index d69c6f259318..67494cad69f3 100644
--- a/packages/google-api-core/google/api_core/version.py
+++ b/packages/google-api-core/google/api_core/version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "2.37.0"
+__version__ = "2.38.0"
diff --git a/packages/google-cloud-bigtable/CHANGELOG.md b/packages/google-cloud-bigtable/CHANGELOG.md
index 51408bfccf08..cad81eb727c9 100644
--- a/packages/google-cloud-bigtable/CHANGELOG.md
+++ b/packages/google-cloud-bigtable/CHANGELOG.md
@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-bigtable/#history
 
+## [2.46.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-bigtable-v2.45.0...google-cloud-bigtable-v2.46.0) (2026-09-15)
+
+
+### Features
+
+* **bigtable:** Rerouted RowSet and RowRange to use ReadRows from data client ([#18196](https://github.com/googleapis/google-cloud-python/issues/18196)) ([1857302](https://github.com/googleapis/google-cloud-python/commit/1857302d5c602087b9a782c62694c33013eb77ea))
+
 ## [2.45.0](https://github.com/googleapis/google-cloud-python/compare/google-cloud-bigtable-v2.44.0...google-cloud-bigtable-v2.45.0) (2026-09-14)
 
 
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 80808e348d78..47a60f03e311 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__ = "2.45.0"  # {x-release-please-version}
+__version__ = "2.46.0"  # {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 80808e348d78..47a60f03e311 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__ = "2.45.0"  # {x-release-please-version}
+__version__ = "2.46.0"  # {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 80808e348d78..47a60f03e311 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__ = "2.45.0"  # {x-release-please-version}
+__version__ = "2.46.0"  # {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 80808e348d78..47a60f03e311 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__ = "2.45.0"  # {x-release-please-version}
+__version__ = "2.46.0"  # {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 18eb4108003f..76e5c86209f8 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": "2.45.0"
+    "version": "2.46.0"
   },
   "snippets": [
     {