diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
new file mode 100644
index 00000000..4e751977
--- /dev/null
+++ b/.github/workflows/dependency-review.yml
@@ -0,0 +1,20 @@
+# Dependency Review Action
+#
+# This Action will scan dependency manifest files that change as part of a Pull Request, surfacing known-vulnerable versions of the packages declared or updated in the PR. Once installed, if the workflow run is marked as required, PRs introducing known-vulnerable packages will be blocked from merging.
+#
+# Source repository: https://github.com/actions/dependency-review-action
+# Public documentation: https://docs.github.com/en/code-security/supply-chain-security/understanding-your-software-supply-chain/about-dependency-review#dependency-review-enforcement
+name: 'Dependency Review'
+on: [pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  dependency-review:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout Repository'
+        uses: actions/checkout@v4
+      - name: 'Dependency Review'
+        uses: actions/dependency-review-action@v3
diff --git a/.github/workflows/lint_python.yml b/.github/workflows/lint_python.yml
index fe654d9f..f50e8aa9 100644
--- a/.github/workflows/lint_python.yml
+++ b/.github/workflows/lint_python.yml
@@ -8,20 +8,15 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: 3.x
+          check-latest: true
       - run: pip install --upgrade pip setuptools wheel
-      - run: pip install bandit black codespell flake8 flake8-2020 flake8-bugbear
-                         flake8-comprehensions isort mypy pytest pyupgrade safety
-      - run: bandit --recursive --skip B101,B105,B106,B107,B324 .
+      - run: pip install black codespell mypy pytest ruff safety
+      - run: ruff --format=github .
       - run: black --check . || true
-      - run: codespell || true  # --ignore-words-list="" --skip="*.css,*.js,*.lock"
-      - run: flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-      - run: flake8 . --count --exit-zero --max-complexity=10 --max-line-length=88
-                      --show-source --statistics
-      - run: isort --check-only --profile black . || true
-      - run: pip install -r requirements.txt || pip install --editable . || true
+      - run: codespell  # --ignore-words-list="" --skip="*.css,*.js,*.lock"
+      - run: pip install -r requirements-test.txt
+      - run: pip install --editable .
       - run: mkdir --parents --verbose .mypy_cache
       - run: mypy --ignore-missing-imports --install-types --non-interactive . || true
-      - run: pytest . || true
-      - run: pytest --doctest-modules . || true
-      - run: shopt -s globstar && pyupgrade --py36-plus **/*.py || true
+      - run: pytest
       - run: safety check
diff --git a/.github/workflows/python-build.yml b/.github/workflows/python-build.yml
index c7af97ad..0f7ddf1b 100644
--- a/.github/workflows/python-build.yml
+++ b/.github/workflows/python-build.yml
@@ -1,19 +1,21 @@
 name: Python Tests
 run-name: Run Tests by ${{ github.actor }}
-on: [push]
+on: [push, pull_request, workflow_dispatch]
 jobs:
   tests:
     env:
+      FORCE_COLOR: 1
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     strategy:
       matrix:
-        python: ["3.8", "3.9", "3.10", "3.11"]
+        python: ["3.8", "3.9", "3.10", "3.11", "3.12"]
     runs-on: ubuntu-latest
     steps:
       - name: Set up Python ${{ matrix.python }}
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}
+          allow-prereleases: true
       - name: Check out repository code
         uses: actions/checkout@v3
       - name: Install prereq
diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
index 89262709..43417ee5 100644
--- a/.github/workflows/python-publish.yml
+++ b/.github/workflows/python-publish.yml
@@ -7,6 +7,7 @@ on:
 jobs:
   pypi-publish:
     if: |
+      github.repository_owner == 'oauthlib' &&
       ${{ github.event.workflow_run.conclusion == 'success' }} &&
       ${{ github.ref_type == 'tag' }}
     name: Upload release to PyPI
diff --git a/Makefile b/Makefile
index 2d2e1ed7..28081659 100644
--- a/Makefile
+++ b/Makefile
@@ -34,11 +34,11 @@ clean-build:
 	@rm -fr dist/
 	@rm -fr *.egg-info
 
-format fmt:
-	isort --recursive oauthlib tests
+format fmt black:
+	black .
 
-lint:
-	isort --recursive --check-only --diff oauthlib tests
+lint ruff:
+	ruff .
 
 test:
 	tox
@@ -81,4 +81,4 @@ dance:
 
 .DEFAULT_GOAL := all
 .PHONY: clean test bottle dance django flask requests
-all: test bottle dance django flask requests
+all: lint test bottle dance django flask requests
diff --git a/oauthlib/oauth2/rfc6749/grant_types/refresh_token.py b/oauthlib/oauth2/rfc6749/grant_types/refresh_token.py
index ce33df0e..43bf55ac 100644
--- a/oauthlib/oauth2/rfc6749/grant_types/refresh_token.py
+++ b/oauthlib/oauth2/rfc6749/grant_types/refresh_token.py
@@ -101,6 +101,9 @@ def validate_token_request(self, request):
             if not self.request_validator.authenticate_client(request):
                 log.debug('Invalid client (%r), denying access.', request)
                 raise errors.InvalidClientError(request=request)
+            # Ensure that request.client_id is set.
+            if request.client_id is None and request.client is not None:
+                request.client_id = request.client.client_id
         elif not self.request_validator.authenticate_client_id(request.client_id, request):
             log.debug('Client authentication failed, %r.', request)
             raise errors.InvalidClientError(request=request)
diff --git a/setup.py b/setup.py
index b5c2eebc..4043db0f 100755
--- a/setup.py
+++ b/setup.py
@@ -56,6 +56,7 @@ def fread(fn):
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
         'Programming Language :: Python :: 3 :: Only',
         'Programming Language :: Python :: Implementation',
         'Programming Language :: Python :: Implementation :: CPython',
diff --git a/tests/oauth1/rfc5849/test_utils.py b/tests/oauth1/rfc5849/test_utils.py
index 013c71a9..22128908 100644
--- a/tests/oauth1/rfc5849/test_utils.py
+++ b/tests/oauth1/rfc5849/test_utils.py
@@ -53,11 +53,11 @@ def test_filter_params(self):
         # The following is an isolated test function used to test the filter_params decorator.
         @filter_params
         def special_test_function(params, realm=None):
-            """ I am a special test function """
+            """I am a special test function"""
             return 'OAuth ' + ','.join(['='.join([k, v]) for k, v in params])
 
         # check that the docstring got through
-        self.assertEqual(special_test_function.__doc__, " I am a special test function ")
+        self.assertEqual(special_test_function.__doc__, "I am a special test function")
 
         # Check that the decorator filtering works as per design.
         #   Any param that does not start with 'oauth'
diff --git a/tests/oauth2/rfc6749/grant_types/test_refresh_token.py b/tests/oauth2/rfc6749/grant_types/test_refresh_token.py
index 581f2a4d..0a4ddd9a 100644
--- a/tests/oauth2/rfc6749/grant_types/test_refresh_token.py
+++ b/tests/oauth2/rfc6749/grant_types/test_refresh_token.py
@@ -130,6 +130,22 @@ def test_authentication_required(self):
                           self.request)
         self.mock_validator.client_authentication_required.assert_called_once_with(self.request)
 
+
+    def test_authentication_required_populate_client_id(self):
+        """
+        Make sure that request.client_id is populated from
+        request.client.client_id if None.
+
+        """
+        self.mock_validator.client_authentication_required.return_value = True
+        self.mock_validator.authenticate_client.return_value = True
+        # self.mock_validator.authenticate_client_id.return_value = False
+        # self.request.code = 'waffles'
+        self.request.client_id = None
+        self.request.client.client_id = 'foobar'
+        self.auth.validate_token_request(self.request)
+        self.request.client_id = 'foobar'
+
     def test_invalid_grant_type(self):
         self.request.grant_type = 'wrong_type'
         self.assertRaises(errors.UnsupportedGrantTypeError,
diff --git a/tox.ini b/tox.ini
index 3195c771..fb476a12 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 # require tox>=4
 [tox]
-envlist = py38,py39,py310,py311,pypy3,docs,readme,bandit,isort
+envlist = py38,py39,py310,py311,py312,pypy3,docs,readme,ruff
 
 [testenv]
 deps=
@@ -9,7 +9,6 @@ commands=
     pytest --cov=oauthlib tests/
 
 # tox -e docs to mimic readthedocs build.
-# as of today, RTD is using python3.7 and doesn't run "setup.py install"
 [testenv:docs]
 basepython=python3.11
 skipsdist=True
@@ -28,16 +27,8 @@ allowlist_externals=echo
 commands=
         twine check .tox/.pkg/dist/*
 
-[testenv:bandit]
-basepython=python3.11
-skipsdist=True
-deps=bandit
-commands=bandit -b bandit.json -r oauthlib/
-allowlist_externals=bandit
-
-[testenv:isort]
-basepython = python3.8
-usedevelop = false
-deps = isort
-changedir = {toxinidir}
-commands = isort --recursive --check-only --diff oauthlib tests
+[testenv:ruff]
+deps=ruff
+allowlist_externals=ruff
+skip_install=true
+commands=ruff .