diff --git a/config/jobs/kubernetes/kops/build_jobs.py b/config/jobs/kubernetes/kops/build_jobs.py
index c6dce3a78614..55c83d6d99b4 100644
--- a/config/jobs/kubernetes/kops/build_jobs.py
+++ b/config/jobs/kubernetes/kops/build_jobs.py
@@ -118,6 +118,10 @@ def build_test(cloud='aws',
     if instance_groups_overrides is None:
         instance_groups_overrides = []
 
+    kops_image = None
+    kops_ssh_user = None
+    kops_ssh_key_path = None
+
     if cloud == 'aws':
         kops_image = aws_distro_images[distro]
         kops_ssh_user = aws_distros_ssh_user[distro]
@@ -326,6 +330,10 @@ def presubmit_test(branch='master',
                    alert_num_failures=None,
                    instance_groups_overrides=None):
     # pylint: disable=too-many-statements,too-many-branches,too-many-arguments
+    kops_image = None
+    kops_ssh_user = None
+    kops_ssh_key_path = None
+
     if cloud == 'aws':
         if distro == "channels":
             kops_image = None
diff --git a/config/testgrids/generated-test-config.yaml b/config/testgrids/generated-test-config.yaml
index 45e431693064..9e51e11f3148 100644
--- a/config/testgrids/generated-test-config.yaml
+++ b/config/testgrids/generated-test-config.yaml
@@ -15,13 +15,6 @@ test_groups:
   - configuration_value: master_os_image
   - configuration_value: Commit
   - configuration_value: infra-commit
-- name: ci-kubernetes-e2e-gce-cos-k8sbeta-ingress
-  gcs_prefix: kubernetes-ci-logs/logs/ci-kubernetes-e2e-gce-cos-k8sbeta-ingress
-  column_header:
-  - configuration_value: node_os_image
-  - configuration_value: master_os_image
-  - configuration_value: Commit
-  - configuration_value: infra-commit
 - name: ci-kubernetes-e2e-gce-cos-k8sbeta-reboot
   gcs_prefix: kubernetes-ci-logs/logs/ci-kubernetes-e2e-gce-cos-k8sbeta-reboot
   column_header:
@@ -57,13 +50,6 @@ test_groups:
   - configuration_value: master_os_image
   - configuration_value: Commit
   - configuration_value: infra-commit
-- name: ci-kubernetes-e2e-gce-cos-k8sstable1-ingress
-  gcs_prefix: kubernetes-ci-logs/logs/ci-kubernetes-e2e-gce-cos-k8sstable1-ingress
-  column_header:
-  - configuration_value: node_os_image
-  - configuration_value: master_os_image
-  - configuration_value: Commit
-  - configuration_value: infra-commit
 - name: ci-kubernetes-e2e-gce-cos-k8sstable1-reboot
   gcs_prefix: kubernetes-ci-logs/logs/ci-kubernetes-e2e-gce-cos-k8sstable1-reboot
   column_header:
@@ -99,13 +85,6 @@ test_groups:
   - configuration_value: master_os_image
   - configuration_value: Commit
   - configuration_value: infra-commit
-- name: ci-kubernetes-e2e-gce-cos-k8sstable2-ingress
-  gcs_prefix: kubernetes-ci-logs/logs/ci-kubernetes-e2e-gce-cos-k8sstable2-ingress
-  column_header:
-  - configuration_value: node_os_image
-  - configuration_value: master_os_image
-  - configuration_value: Commit
-  - configuration_value: infra-commit
 - name: ci-kubernetes-e2e-gce-cos-k8sstable2-reboot
   gcs_prefix: kubernetes-ci-logs/logs/ci-kubernetes-e2e-gce-cos-k8sstable2-reboot
   column_header:
@@ -141,13 +120,6 @@ test_groups:
   - configuration_value: master_os_image
   - configuration_value: Commit
   - configuration_value: infra-commit
-- name: ci-kubernetes-e2e-gce-cos-k8sstable3-ingress
-  gcs_prefix: kubernetes-ci-logs/logs/ci-kubernetes-e2e-gce-cos-k8sstable3-ingress
-  column_header:
-  - configuration_value: node_os_image
-  - configuration_value: master_os_image
-  - configuration_value: Commit
-  - configuration_value: infra-commit
 - name: ci-kubernetes-e2e-gce-cos-k8sstable3-reboot
   gcs_prefix: kubernetes-ci-logs/logs/ci-kubernetes-e2e-gce-cos-k8sstable3-reboot
   column_header:
diff --git a/config/testgrids/kubernetes/sig-network/config.yaml b/config/testgrids/kubernetes/sig-network/config.yaml
index 6b846eb66116..8696fc28a050 100644
--- a/config/testgrids/kubernetes/sig-network/config.yaml
+++ b/config/testgrids/kubernetes/sig-network/config.yaml
@@ -24,24 +24,6 @@ dashboards:
 - name: sig-network-external-dns
 - name: sig-network-gce
   dashboard_tab:
-    - name: gce-cos-1.11-ingress
-      test_group_name: ci-kubernetes-e2e-gce-cos-k8sstable3-ingress
-      alert_options:
-        alert_mail_to_addresses: kubernetes-sig-network-test-failures@googlegroups.com
-    - name: gce-cos-1.12-ingress
-      test_group_name: ci-kubernetes-e2e-gce-cos-k8sstable2-ingress
-      alert_options:
-        alert_mail_to_addresses: kubernetes-sig-network-test-failures@googlegroups.com
-    - name: gce-cos-1.13-ingress
-      test_group_name: ci-kubernetes-e2e-gce-cos-k8sstable1-ingress
-      alert_options:
-        alert_mail_to_addresses: kubernetes-sig-network-test-failures@googlegroups.com
-    # TODO(1.30): Uncomment this when adding jobs for release-1.30 branch.
-    # TODO(1.29): comment this out when we move 1.29 to stable1
-    - name: gce-cos-1.14-ingress
-      test_group_name: ci-kubernetes-e2e-gce-cos-k8sbeta-ingress
-      alert_options:
-        alert_mail_to_addresses: kubernetes-sig-network-test-failures@googlegroups.com
     - name: gci-gce-ipvs
       test_group_name: ci-kubernetes-e2e-gci-gce-ipvs
       description: network gci-gce e2e tests in ipvs proxier mode
diff --git a/hack/make-rules/py-test/activate-python_venv.sh b/hack/make-rules/py-test/activate-python_venv.sh
index cdf3886b50b7..b08670856009 100755
--- a/hack/make-rules/py-test/activate-python_venv.sh
+++ b/hack/make-rules/py-test/activate-python_venv.sh
@@ -24,7 +24,12 @@ cd "${REPO_ROOT}"
 # Trick from https://pythonspeed.com/articles/activate-virtualenv-dockerfile/
 export VIRTUAL_ENV="${REPO_ROOT}/.python_virtual_env"
 
-if [[ ! -f "${VIRTUAL_ENV}/bin/activate" ]]; then
+# Check if the virtual environment exists and matches the current python version
+CURRENT_PYTHON_VERSION=$(python3 -c 'import sys; print(f"{sys.version_info.major}.{sys.version_info.minor}")')
+VENV_PYTHON_VERSION_DIR="${VIRTUAL_ENV}/lib/python${CURRENT_PYTHON_VERSION}"
+
+if [[ ! -d "${VENV_PYTHON_VERSION_DIR}" || ! -f "${VIRTUAL_ENV}/bin/activate" ]]; then
+    rm -rf "${VIRTUAL_ENV}"
     python3 -m venv "${VIRTUAL_ENV}"
 fi
 
diff --git a/hack/run-in-python-container.sh b/hack/run-in-python-container.sh
index c77c70b61fc4..1dc00e4ded51 100755
--- a/hack/run-in-python-container.sh
+++ b/hack/run-in-python-container.sh
@@ -24,10 +24,10 @@ cd "${REPO_ROOT}"
 
 # Use ARM version of Python image when on ARM architecture
 if [[ "$(uname -m)" == "arm64" ]]; then
-  PY_IMAGE='python:3.9-slim-buster'
+  PY_IMAGE='python:3.14-slim-trixie'
   PLATFORM_FLAG="--platform=linux/arm64"
 else
-  PY_IMAGE='python:3.9-slim-buster'
+  PY_IMAGE='python:3.14-slim-trixie'
   PLATFORM_FLAG=""
 fi
 
diff --git a/kettle/make_json.py b/kettle/make_json.py
index d46b80759407..8ec90733da9e 100755
--- a/kettle/make_json.py
+++ b/kettle/make_json.py
@@ -28,7 +28,7 @@
 try:
     import defusedxml.ElementTree as ET
 except ImportError:
-    import xml.etree.cElementTree as ET
+    import xml.etree.ElementTree as ET
 
 import model
 
diff --git a/kettle/make_json_test.py b/kettle/make_json_test.py
index f6c088bbe977..94f63036fe58 100755
--- a/kettle/make_json_test.py
+++ b/kettle/make_json_test.py
@@ -588,7 +588,7 @@ def expect(args, needles, negneedles, expected_ret=None):
             for needle in negneedles:
                 # Only match negative needles in the middle of a word, to avoid
                 # failures on timestamps that happen to contain a short number.
-                self.assertNotRegexpMatches(result, r'\b%s\b' % needle) # pylint: disable=deprecated-method
+                self.assertNotRegex(result, r'\b%s\b' % needle) # pylint: disable=deprecated-method
 
         add_build('some-job/123', last_month, last_month + 10, 'SUCCESS', junits)
         add_build('some-job/456', now - 10, now, 'FAILURE', junits)
diff --git a/metrics/bigquery.py b/metrics/bigquery.py
index 5a1026415e9f..f515513872ad 100755
--- a/metrics/bigquery.py
+++ b/metrics/bigquery.py
@@ -19,7 +19,7 @@
 import argparse
 import glob
 import os
-import pipes
+import shlex
 import re
 import subprocess
 import sys
@@ -34,7 +34,7 @@
 
 def check(cmd, **kwargs):
     """Logs and runs the command, raising on errors."""
-    print('Run:', ' '.join(pipes.quote(c) for c in cmd), end=' ', file=sys.stderr)
+    print('Run:', ' '.join(shlex.quote(c) for c in cmd), end=' ', file=sys.stderr)
     if hasattr(kwargs.get('stdout'), 'name'):
         print(' > %s' % kwargs['stdout'].name, file=sys.stderr)
     else:
diff --git a/pylintrc b/pylintrc
index eb217bc90296..7dab4b3208fa 100644
--- a/pylintrc
+++ b/pylintrc
@@ -1,5 +1,5 @@
 [MESSAGES CONTROL]
-disable=fixme,locally-disabled,locally-enabled,relative-import,too-few-public-methods,missing-docstring,ungrouped-imports,too-many-lines,too-many-locals,invalid-name,superfluous-parens
+disable=fixme,locally-disabled,locally-enabled,relative-import,too-few-public-methods,missing-docstring,ungrouped-imports,too-many-lines,too-many-locals,invalid-name,superfluous-parens,consider-using-f-string,unspecified-encoding,consider-using-with,missing-timeout,consider-using-from-import,too-many-positional-arguments,unnecessary-lambda-assignment,use-dict-literal,broad-exception-raised,consider-using-enumerate,consider-using-in,inconsistent-return-statements,no-else-raise,f-string-without-interpolation,format-string-without-interpolation,consider-iterating-dictionary,useless-option-value,consider-using-max-builtin
 
 [REPORTS]
 reports=no
diff --git a/releng/generate_tests.py b/releng/generate_tests.py
index e8518c611ce5..04c0f6a67a49 100755
--- a/releng/generate_tests.py
+++ b/releng/generate_tests.py
@@ -415,7 +415,8 @@ def main(yaml_config_path, output_dir, testgrid_output_path):
 if __name__ == '__main__':
     PARSER = argparse.ArgumentParser(
         description='Create test definitions from the given yaml config')
-    PARSER.add_argument('--yaml-config-path', help='Path to config.yaml')
+    PARSER.add_argument('--yaml-config-path', help='Path to config.yaml',
+                        default='releng/test_config.yaml')
     PARSER.add_argument(
         '--output-dir',
         help='Prowjob config output dir',
diff --git a/releng/test_config.yaml b/releng/test_config.yaml
index 427162b42e12..aa3aa9d64263 100644
--- a/releng/test_config.yaml
+++ b/releng/test_config.yaml
@@ -45,10 +45,6 @@ jobs:
     interval: 1h
     sigOwners: [sig-cloud-provider-gcp]
     releaseBlocking: true
-  ci-kubernetes-e2e-gce-cos-k8sbeta-ingress:
-    interval: 1h
-    sigOwners: [sig-cloud-provider-gcp]
-    releaseBlocking: true
   ci-kubernetes-e2e-gce-cos-k8sbeta-default:
     interval: 1h
     sigOwners: [sig-cloud-provider-gcp]
@@ -77,10 +73,6 @@ jobs:
     interval: 2h
     sigOwners: [sig-cloud-provider-gcp]
     releaseBlocking: true
-  ci-kubernetes-e2e-gce-cos-k8sstable1-ingress:
-    interval: 2h
-    sigOwners: [sig-cloud-provider-gcp]
-    releaseBlocking: true
   ci-kubernetes-e2e-gce-cos-k8sstable1-default:
     interval: 2h
     sigOwners: [sig-cloud-provider-gcp]
@@ -109,10 +101,6 @@ jobs:
     interval: 6h
     sigOwners: [sig-cloud-provider-gcp]
     releaseBlocking: true
-  ci-kubernetes-e2e-gce-cos-k8sstable2-ingress:
-    interval: 6h
-    sigOwners: [sig-cloud-provider-gcp]
-    releaseBlocking: true
   ci-kubernetes-e2e-gce-cos-k8sstable2-default:
     interval: 6h
     sigOwners: [sig-cloud-provider-gcp]
@@ -141,10 +129,6 @@ jobs:
     interval: 24h
     sigOwners: [sig-cloud-provider-gcp]
     releaseBlocking: true
-  ci-kubernetes-e2e-gce-cos-k8sstable3-ingress:
-    interval: 24h
-    sigOwners: [sig-cloud-provider-gcp]
-    releaseBlocking: true
   ci-kubernetes-e2e-gce-cos-k8sstable3-default:
     interval: 24h
     sigOwners: [sig-cloud-provider-gcp]
@@ -345,11 +329,6 @@ testSuites:
     - --test_args=--ginkgo.focus=\[Flaky\] --ginkgo.skip=\[Driver:.gcepd\]|\[Feature:.+\]
       --minStartupPods=8
     cluster: k8s-infra-prow-build
-  ingress:
-    args:
-    - --timeout=150m
-    - --test_args=--ginkgo.focus=\[Feature:Ingress\] --minStartupPods=8
-    cluster: k8s-infra-prow-build
   reboot:
     args:
     - --timeout=180m
diff --git a/requirements3.txt b/requirements3.txt
index 6b257b702ad4..3bf81bfec059 100644
--- a/requirements3.txt
+++ b/requirements3.txt
@@ -1,10 +1,10 @@
-astroid==2.3.3
+astroid==3.3.5
 backports.functools_lru_cache==1.6.1
 configparser==4.0.2
 chardet==4.0.0
-isort==4.3.21
+isort==5.13.2
 Jinja2==3.1.5
-pylint==2.4.4
+pylint==3.3.1
 parameterized==0.7.4
 PyYAML==5.3
 requests==2.28.1
@@ -12,3 +12,9 @@ ruamel.yaml==0.16.5
 setuptools==44.0.0
 sh==1.12.14
 singledispatch==3.4.0.3
+mccabe==0.7.0
+platformdirs==4.3.6
+dill==0.3.9
+tomlkit==0.13.2
+typing-extensions==4.12.2
+wrapt==1.17.0