From 26ac4e2faf7c7b78ef50858f8b8df881d502cd16 Mon Sep 17 00:00:00 2001
From: Anthonios Partheniou <partheniou@google.com>
Date: Wed, 11 Mar 2026 19:33:27 +0000
Subject: [PATCH 1/2] tests: remove tests for 3.7/3.8

---
 .github/workflows/unittest.yml | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index d783dca883ff..7b1809e1c5f0 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -14,13 +14,10 @@ permissions:
 
 jobs:
   unit:
-    # TODO(https://github.com/googleapis/gapic-generator-python/issues/2303): use `ubuntu-latest` once this bug is fixed.
-    # Use ubuntu-22.04 until Python 3.7 is removed from the test matrix
-    # https://docs.github.com/en/actions/using-github-hosted-runners/using-github-hosted-runners/about-github-hosted-runners#standard-github-hosted-runners-for-public-repositories
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        python: ['3.7', '3.8', '3.9', '3.10', "3.11", "3.12", "3.13", "3.14"]
+        python: ['3.9', '3.10', "3.11", "3.12", "3.13", "3.14"]
     steps:
     - name: Checkout
       uses: actions/checkout@v4

From 64f99fcb6744cb4f06b40b76c6416256a1c27813 Mon Sep 17 00:00:00 2001
From: Anthonios Partheniou <partheniou@google.com>
Date: Wed, 11 Mar 2026 20:43:07 +0000
Subject: [PATCH 2/2] chore: update post processing files

---
 .../add-dependency-google-cloud-common.yaml   | 14 ++--
 ...-dependencies-to-setup-py-constraints.yaml | 76 +++++++++----------
 .../bigquery-storage-integration.yaml         | 10 +--
 ...containeranalysis-grafeas-integration.yaml | 14 ++--
 .../firestore-integration.yaml                |  6 +-
 .../integrate-isolated-handwritten-code.yaml  | 40 +++++-----
 .../logging-integration.yaml                  | 11 ++-
 ...y-error-with-org-policy-as-dependency.yaml | 14 ++--
 .../pubsub-integration.yaml                   | 64 ----------------
 .../unique-grafeas-client.yaml                |  2 +-
 10 files changed, 95 insertions(+), 156 deletions(-)

diff --git a/.librarian/generator-input/client-post-processing/add-dependency-google-cloud-common.yaml b/.librarian/generator-input/client-post-processing/add-dependency-google-cloud-common.yaml
index c6992913b73f..2471e680d80b 100644
--- a/.librarian/generator-input/client-post-processing/add-dependency-google-cloud-common.yaml
+++ b/.librarian/generator-input/client-post-processing/add-dependency-google-cloud-common.yaml
@@ -19,14 +19,14 @@ replacements:
     ]
     before: |
       dependencies = \[
-          "google-api-core\[grpc\] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core\[grpc\] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "grpcio >= 1.33.2, < 2.0.0",
     after: |
       dependencies = [
-          "google-api-core[grpc] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core[grpc] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
@@ -34,13 +34,13 @@ replacements:
           "grpcio >= 1.33.2, < 2.0.0",
     count: 1
   - paths: [
-      packages/google-cloud-filestore/testing/constraints-3.7.txt
+      packages/google-cloud-filestore/testing/constraints-3.9.txt
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       google-cloud-common==1.0.0
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
diff --git a/.librarian/generator-input/client-post-processing/add-missing-dependencies-to-setup-py-constraints.yaml b/.librarian/generator-input/client-post-processing/add-missing-dependencies-to-setup-py-constraints.yaml
index f3262d7936c2..3b72a834394c 100644
--- a/.librarian/generator-input/client-post-processing/add-missing-dependencies-to-setup-py-constraints.yaml
+++ b/.librarian/generator-input/client-post-processing/add-missing-dependencies-to-setup-py-constraints.yaml
@@ -11,7 +11,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-description: setup.py and testing/constraints-3.7.txt are missing necessary dependencies
+description: setup.py and testing/constraints-3.9.txt are missing necessary dependencies
 url: https://github.com/googleapis/gapic-generator-python/issues/1831
 replacements:
   - paths: [
@@ -19,14 +19,14 @@ replacements:
     ]
     before: |
       dependencies = \[
-          "google-api-core\[grpc\] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core\[grpc\] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "grpcio >= 1.33.2, < 2.0.0",
     after:  |
       dependencies = [
-          "google-api-core[grpc] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core[grpc] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
@@ -34,29 +34,29 @@ replacements:
           "grpcio >= 1.33.2, < 2.0.0",
     count: 1
   - paths: [
-      packages/google-cloud-gke-hub/testing/constraints-3.7.txt
+      packages/google-cloud-gke-hub/testing/constraints-3.9.txt
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       grpc-google-iam-v1==0.12.4
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
   - paths: [
       packages/google-cloud-build/setup.py
     ]
     before: |
       dependencies = \[
-          "google-api-core\[grpc\] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core\[grpc\] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "grpcio >= 1.33.2, < 2.0.0",
     after:  |
       dependencies = [
-          "google-api-core[grpc] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core[grpc] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
@@ -64,29 +64,29 @@ replacements:
           "grpcio >= 1.33.2, < 2.0.0",
     count: 1
   - paths: [
-      packages/google-cloud-build/testing/constraints-3.7.txt
+      packages/google-cloud-build/testing/constraints-3.9.txt
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       grpc-google-iam-v1==0.12.4
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
   - paths: [
       packages/google-cloud-binary-authorization/setup.py
     ]
     before: |
       dependencies = \[
-          "google-api-core\[grpc\] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core\[grpc\] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "grpcio >= 1.33.2, < 2.0.0",
     after:  |
       dependencies = [
-          "google-api-core[grpc] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core[grpc] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
@@ -94,40 +94,40 @@ replacements:
           "grpcio >= 1.33.2, < 2.0.0",
     count: 1
   - paths: [
-      packages/google-cloud-binary-authorization/testing/constraints-3.7.txt
+      packages/google-cloud-binary-authorization/testing/constraints-3.9.txt
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       grafeas==1.1.2
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
   - paths: [
-      packages/google-cloud-iam/testing/constraints-3.7.txt
+      packages/google-cloud-iam/testing/constraints-3.9.txt
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       grpc-google-iam-v1==0.12.4
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
   - paths: [
       packages/google-cloud-iam/setup.py
     ]
     before: |
       dependencies = \[
-          "google-api-core\[grpc\] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core\[grpc\] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "grpcio >= 1.33.2, < 2.0.0",
     after:  |
       dependencies = [
-          "google-api-core[grpc] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core[grpc] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
@@ -139,14 +139,14 @@ replacements:
     ]
     before: |
       dependencies = \[
-          "google-api-core\[grpc\] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core\[grpc\] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "grpcio >= 1.33.2, < 2.0.0",
     after:  |
       dependencies = [
-          "google-api-core[grpc] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core[grpc] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
@@ -158,14 +158,14 @@ replacements:
     ]
     before: |
       dependencies = \[
-          "google-api-core\[grpc\] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core\[grpc\] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "grpcio >= 1.33.2, < 2.0.0",
     after:  |
       dependencies = [
-          "google-api-core[grpc] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core[grpc] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
@@ -173,13 +173,13 @@ replacements:
           "grpcio >= 1.33.2, < 2.0.0",
     count: 1
   - paths: [
-      packages/google-shopping-merchant-notifications/testing/constraints-3.7.txt
+      packages/google-shopping-merchant-notifications/testing/constraints-3.9.txt
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after:  |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       google-shopping-type==1.0.0
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
diff --git a/.librarian/generator-input/client-post-processing/bigquery-storage-integration.yaml b/.librarian/generator-input/client-post-processing/bigquery-storage-integration.yaml
index 00b9e1682ab9..4df0546cdf87 100644
--- a/.librarian/generator-input/client-post-processing/bigquery-storage-integration.yaml
+++ b/.librarian/generator-input/client-post-processing/bigquery-storage-integration.yaml
@@ -452,20 +452,20 @@ replacements:
       )
     count: 1
   - paths: [
-      packages/google-cloud-bigquery-storage/testing/constraints-3.7.txt,
+      packages/google-cloud-bigquery-storage/testing/constraints-3.9.txt,
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       libcst==0.2.5
       fastavro==0.21.2
       # pytz is required by pandas
       pytz
       pandas==1.0.5
       pyarrow==0.15.0
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
     # Given that this file is mostly handwritten, we could omit the file during code generation
     # This will require a change to gapic-generator-python to provide the ability to omit files
diff --git a/.librarian/generator-input/client-post-processing/containeranalysis-grafeas-integration.yaml b/.librarian/generator-input/client-post-processing/containeranalysis-grafeas-integration.yaml
index 8b88081a2f26..8593192c3591 100644
--- a/.librarian/generator-input/client-post-processing/containeranalysis-grafeas-integration.yaml
+++ b/.librarian/generator-input/client-post-processing/containeranalysis-grafeas-integration.yaml
@@ -19,14 +19,14 @@ replacements:
     ]
     before: |
       dependencies = \[
-          "google-api-core\[grpc\] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core\[grpc\] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "grpcio >= 1.33.2, < 2.0.0",
     after: |
       dependencies = [
-          "google-api-core[grpc] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core[grpc] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
@@ -34,15 +34,15 @@ replacements:
           "grpcio >= 1.33.2, < 2.0.0",
     count: 1
   - paths: [
-      packages/google-cloud-containeranalysis/testing/constraints-3.7.txt
+      packages/google-cloud-containeranalysis/testing/constraints-3.9.txt
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       grafeas==1.4.1
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
   - paths: [
       packages/google-cloud-containeranalysis/google/cloud/devtools/containeranalysis_v1/services/container_analysis/client.py,
diff --git a/.librarian/generator-input/client-post-processing/firestore-integration.yaml b/.librarian/generator-input/client-post-processing/firestore-integration.yaml
index 766a560ee5f0..17334149cc41 100644
--- a/.librarian/generator-input/client-post-processing/firestore-integration.yaml
+++ b/.librarian/generator-input/client-post-processing/firestore-integration.yaml
@@ -16,15 +16,15 @@ description: Integrate Google Cloud Firestore Handwritten code
 url: https://github.com/googleapis/gapic-generator-python/issues/123
 replacements:
   - paths: [
-      "packages/google-cloud-firestore/testing/constraints-3.7.txt",
+      "packages/google-cloud-firestore/testing/constraints-3.9.txt",
     ]
     before: |
       proto-plus==1.22.3
-      protobuf==3.20.2
+      protobuf==4.25.8
     after: |
       proto-plus==1.22.3
       google-cloud-core==1.4.1
-      protobuf==3.20.2
+      protobuf==4.25.8
     count: 1
   - paths: [
       "packages/google-cloud-firestore/google/cloud/firestore_bundle/types/bundle.py",
diff --git a/.librarian/generator-input/client-post-processing/integrate-isolated-handwritten-code.yaml b/.librarian/generator-input/client-post-processing/integrate-isolated-handwritten-code.yaml
index 986ed5853c3a..6bacbaa9a8f0 100644
--- a/.librarian/generator-input/client-post-processing/integrate-isolated-handwritten-code.yaml
+++ b/.librarian/generator-input/client-post-processing/integrate-isolated-handwritten-code.yaml
@@ -60,14 +60,14 @@ replacements:
     ]
     before: |
       dependencies = \[
-          "google-api-core\[grpc\] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core\[grpc\] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "grpcio >= 1.33.2, < 2.0.0",
     after: |
       dependencies = [
-          "google-api-core[grpc] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core[grpc] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
@@ -75,15 +75,15 @@ replacements:
           "grpcio >= 1.33.2, < 2.0.0",
     count: 1
   - paths: [
-      "packages/google-cloud-translate/testing/constraints-3.7.txt"
+      "packages/google-cloud-translate/testing/constraints-3.9.txt"
     ]
     before: |
       proto-plus==1.22.3
-      protobuf==3.20.2
+      protobuf==4.25.8
     after: |
       proto-plus==1.22.3
       google-cloud-core==1.4.4
-      protobuf==3.20.2
+      protobuf==4.25.8
     count: 1
   - paths: [
       "packages/google-cloud-translate/docs/index.rst",
@@ -167,15 +167,15 @@ replacements:
       extras = {"pandas": "pandas >= 0.23.2"}
     count: 1
   - paths: [
-      packages/google-cloud-monitoring/testing/constraints-3.7.txt,
+      packages/google-cloud-monitoring/testing/constraints-3.9.txt,
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       pandas==0.23.2
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
   - paths: [
       packages/google-cloud-monitoring/noxfile.py,
@@ -218,17 +218,17 @@ replacements:
       }
     count: 1
   - paths: [
-      packages/google-cloud-automl/testing/constraints-3.7.txt,
+      packages/google-cloud-automl/testing/constraints-3.9.txt,
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       google-cloud-storage==1.18.0
       libcst==0.2.5
       pandas==1.0.5
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
   - paths: [
       packages/google-cloud-automl/docs/automl_v1beta1/services_.rst,
@@ -344,15 +344,15 @@ replacements:
           "grpcio >= 1.33.2, < 2.0.0",
     count: 1
   - paths: [
-      packages/google-cloud-error-reporting/testing/constraints-3.7.txt,
+      packages/google-cloud-error-reporting/testing/constraints-3.9.txt,
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       google-cloud-logging==1.14.0
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
   - paths: [
       "packages/google-cloud-error-reporting/docs/index.rst",
diff --git a/.librarian/generator-input/client-post-processing/logging-integration.yaml b/.librarian/generator-input/client-post-processing/logging-integration.yaml
index 885f18afc00e..dc7955067b7e 100644
--- a/.librarian/generator-input/client-post-processing/logging-integration.yaml
+++ b/.librarian/generator-input/client-post-processing/logging-integration.yaml
@@ -286,11 +286,11 @@ replacements:
     after: 'logging_v2.types.Tail'
     count: 2
   - paths: [
-      "packages/google-cloud-logging/testing/constraints-3.7.txt",
+      "packages/google-cloud-logging/testing/constraints-3.9.txt",
     ]
     before: |
       proto-plus==1.22.3
-      protobuf==3.20.2
+      protobuf==4.25.8
     after: |
       proto-plus==1.22.3
       google-cloud-core==2.0.0
@@ -306,7 +306,7 @@ replacements:
       markupsafe==2.0.1
       itsdangerous==2.0.1
       werkzeug==1.0.1
-      protobuf==3.20.2
+      protobuf==4.25.8
     count: 1
   - paths: [
       "packages/google-cloud-logging/docs/conf.py",
@@ -476,7 +476,10 @@ replacements:
     ]
     before: |
       """Run the type checker."""
-      [\s\S]*?"google",\n    \)
+      [\s\S]*?"google",
+      \        "--check-untyped-defs",
+      \        \*session.posargs,
+      \    \)
     after: |
       """Run the type checker."""
 
diff --git a/.librarian/generator-input/client-post-processing/mypy-error-with-org-policy-as-dependency.yaml b/.librarian/generator-input/client-post-processing/mypy-error-with-org-policy-as-dependency.yaml
index 2c244b441296..76c32ad18dce 100644
--- a/.librarian/generator-input/client-post-processing/mypy-error-with-org-policy-as-dependency.yaml
+++ b/.librarian/generator-input/client-post-processing/mypy-error-with-org-policy-as-dependency.yaml
@@ -19,14 +19,14 @@ replacements:
     ]
     before: |
       dependencies = \[
-          "google-api-core\[grpc\] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core\[grpc\] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
           "grpcio >= 1.33.2, < 2.0.0",
     after:  |
       dependencies = [
-          "google-api-core[grpc] >= 1.34.1, <3.0.0,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.*,!=2.4.*,!=2.5.*,!=2.6.*,!=2.7.*,!=2.8.*,!=2.9.*,!=2.10.*",
+          "google-api-core[grpc] >= 2.11.0, <3.0.0",
           # Exclude incompatible versions of `google-auth`
           # See https://github.com/googleapis/google-cloud-python/issues/12364
           "google-auth >= 2.14.1, <3.0.0,!=2.24.0,!=2.25.0",
@@ -34,13 +34,13 @@ replacements:
           "grpcio >= 1.33.2, < 2.0.0",
     count: 1
   - paths: [
-      packages/google-cloud-asset/testing/constraints-3.7.txt
+      packages/google-cloud-asset/testing/constraints-3.9.txt
     ]
     before: |
-      google-api-core==1.34.1
-      google-auth==2.14.1
+      google-api-core==2.21.0
+      google-auth==2.35.0
     after: |
-      google-api-core==1.34.1
+      google-api-core==2.21.0
       google-cloud-org-policy==0.1.2
-      google-auth==2.14.1
+      google-auth==2.35.0
     count: 1
diff --git a/.librarian/generator-input/client-post-processing/pubsub-integration.yaml b/.librarian/generator-input/client-post-processing/pubsub-integration.yaml
index 8e2c953576b1..90cada35fa62 100644
--- a/.librarian/generator-input/client-post-processing/pubsub-integration.yaml
+++ b/.librarian/generator-input/client-post-processing/pubsub-integration.yaml
@@ -387,28 +387,6 @@ replacements:
     after: 'description = "Google Cloud Pub/Sub API client library"'
     count: 1
 
-  # --- FIX: Drop Py 3.7/3.8 classifiers in setup.py ---
-  - paths:
-      - "packages/google-cloud-pubsub/setup.py"
-    before: '([ \t]+"Programming Language :: Python :: 3",\n)[ \t]+"Programming Language :: Python :: 3\.7",\n[ \t]+"Programming Language :: Python :: 3\.8",\n'
-    after: '\g<1>'
-    count: 1
-
-  # --- FIX: Restore setup.py python_requires to >=3.9 ---
-  - paths:
-      - "packages/google-cloud-pubsub/setup.py"
-    before: 'python_requires=">=3\.7",'
-    after: 'python_requires=">=3.9",'
-    count: 1
-
-  # --- FIX: Restore comment and allow google-api-core >= 1.34.0 ---
-  - paths:
-      - "packages/google-cloud-pubsub/setup.py"
-    before: '([ \t]+)"google-api-core\[grpc\] >= 1\.34\.1,([^"]+)",'
-    after: |-
-      \g<1># google-api-core >= 1.34.0 is allowed in order to support google-api-core 1.x
-      \g<1>"google-api-core[grpc] >= 1.34.0,\g<2>",
-    count: 1
 
   # --- FIX: Restore pubsub-specific grpcio bound ---
   - paths:
@@ -429,23 +407,6 @@ replacements:
       ]
       extras = {"libcst": "libcst >= 0.3.10"}
     count: 1
-# --- FIX: Blend README Python versions ---
-  - paths:
-      - "packages/google-cloud-pubsub/README.rst"
-    before: 'Supported Python Versions\n\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^\^[\s\S]+?\.\. _end-of-life: https://devguide\.python\.org/devcycle/#end-of-life-branches'
-    after: |-
-      Supported Python Versions
-      ^^^^^^^^^^^^^^^^^^^^^^^^^
-      Python >= 3.9
-
-      Deprecated Python Versions
-      ^^^^^^^^^^^^^^^^^^^^^^^^^^
-      Python < 3.9
-
-      The last version of this library compatible with Python 3.7 and 3.8 is google-cloud-pubsub==2.34.0.
-
-      The last version of this library compatible with Python 2.7 is google-cloud-pubsub==1.7.0.
-    count: 1
   - paths:
       - "packages/google-cloud-pubsub/noxfile.py"
     before: 'UNIT_TEST_DEPENDENCIES: List\[str\] = \[\]'
@@ -548,17 +509,6 @@ replacements:
 
       \g<1>
     count: 1
-  - paths:
-      - "packages/google-cloud-pubsub/noxfile.py"
-    before: '# Install all test dependencies, then install this package in-place\.\n\n([ \t]+)# TODO\(https://github\.com/googleapis/gapic-generator-python/issues/2388\):'
-    after: |-
-      # Install all test dependencies, then install this package in-place.
-
-      \g<1>if session.python in ["3.7", "3.8"]:
-      \g<1>    session.skip(f"Python {session.python} is no longer supported.")
-
-      \g<1># TODO(https://github.com/googleapis/gapic-generator-python/issues/2388):
-    count: 1
   - paths:
       - "packages/google-cloud-pubsub/noxfile.py"
     before: 'def core_deps_from_source\(session, protobuf_implementation\):[\s\S]+?PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION": protobuf_implementation,\n[ \t]+},\n[ \t]+\)'
@@ -567,25 +517,11 @@ replacements:
           """Skipping until Pub/Sub migration is complete."""
           session.skip("Skipping core_deps_from_source for google-cloud-pubsub.")
     count: 1
-  - paths:
-      - "packages/google-cloud-pubsub/noxfile.py"
-    before: 'SYSTEM_TEST_PYTHON_VERSIONS: List\[str\] = ALL_PYTHON'
-    after: 'SYSTEM_TEST_PYTHON_VERSIONS: List[str] = ["3.12"]'
-    count: 1
   - paths:
       - "packages/google-cloud-pubsub/noxfile.py"
     before: '"--cov=google",'
     after: '"--cov=google/cloud",'
     count: 1
-  - paths:
-      - "packages/google-cloud-pubsub/noxfile.py"
-    before: '([ \t]+)session\.install\("--pre", "grpcio"\)'
-    after: |-
-      \g<1># Use pre-release gRPC for system tests.
-      \g<1># Exclude version 1.52.0rc1 which has a known issue.
-      \g<1># See https://github.com/grpc/grpc/issues/32163
-      \g<1>session.install("--pre", "grpcio!=1.52.0rc1")
-    count: 1
   - paths:
       - "packages/google-cloud-pubsub/docs/conf.py"
     before: 'exclude_patterns = \[\n([ \t]+)"_build",'
diff --git a/.librarian/generator-input/client-post-processing/unique-grafeas-client.yaml b/.librarian/generator-input/client-post-processing/unique-grafeas-client.yaml
index 2be1435ed04f..2721437f2b51 100644
--- a/.librarian/generator-input/client-post-processing/unique-grafeas-client.yaml
+++ b/.librarian/generator-input/client-post-processing/unique-grafeas-client.yaml
@@ -236,7 +236,7 @@ replacements:
     # Use backslashes to preserve leading spaces
     before: |
       \    @property
-      \    def api_endpoint\(self\):
+      \    def api_endpoint\(self\) -> str:
       [\s\S]*?return self\._client\._universe_domain\n
     after: ""
     count: 1