diff --git a/.github/workflows/pre-commit.yml b/.github/workflows/pre-commit.yml
index 0f1b979..bb49834 100644
--- a/.github/workflows/pre-commit.yml
+++ b/.github/workflows/pre-commit.yml
@@ -14,10 +14,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ~/.cache/pip
@@ -27,7 +27,7 @@ jobs:
           restore-keys: |
             lint-v1-
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: '3.x'
 
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 312d099..318910e 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,7 +1,7 @@
 ---
 repos:
     - repo: https://github.com/pre-commit/pre-commit-hooks
-      rev: v4.4.0
+      rev: v4.5.0
       hooks:
           - id: trailing-whitespace
           - id: end-of-file-fixer
@@ -11,13 +11,13 @@ repos:
           - id: debug-statements
             language_version: python3
     - repo: https://github.com/PyCQA/flake8
-      rev: 6.0.0
+      rev: 6.1.0
       hooks:
           - id: flake8
             language_version: python3
-            additional_dependencies: [flake8-typing-imports==1.14.0]
+            additional_dependencies: [flake8-typing-imports==1.15.0]
     - repo: https://github.com/pre-commit/mirrors-autopep8
-      rev: v2.0.1
+      rev: v2.0.4
       hooks:
           - id: autopep8
     - repo: https://github.com/timothycrosley/isort
@@ -38,7 +38,7 @@ repos:
             additional_dependencies: [pygments, restructuredtext_lint]
 # This can deal with sphinx directives
     - repo: https://github.com/myint/rstcheck
-      rev: "v6.1.1"
+      rev: "v6.2.0"
       hooks:
       - id: rstcheck
         args: [--ignore-messages, Duplicate implicit target.*]
diff --git a/COPYRIGHT.txt b/COPYRIGHT.txt
new file mode 100644
index 0000000..b8581dd
--- /dev/null
+++ b/COPYRIGHT.txt
@@ -0,0 +1 @@
+Zope Foundation and Contributors
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..e1f9ad7
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,44 @@
+Zope Public License (ZPL) Version 2.1
+
+A copyright notice accompanies this license document that identifies the
+copyright holders.
+
+This license has been certified as open source. It has also been designated as
+GPL compatible by the Free Software Foundation (FSF).
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions in source code must retain the accompanying copyright
+notice, this list of conditions, and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the accompanying copyright
+notice, this list of conditions, and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+3. Names of the copyright holders must not be used to endorse or promote
+products derived from this software without prior written permission from the
+copyright holders.
+
+4. The right to distribute this software or to use it for any purpose does not
+give you the right to use Servicemarks (sm) or Trademarks (tm) of the
+copyright
+holders. Use of them is covered by separate agreement with the copyright
+holders.
+
+5. If any files are modified, you must cause the modified files to carry
+prominent notices stating that you changed the files and the date of any
+change.
+
+Disclaimer
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY EXPRESSED
+OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/config/README.rst b/config/README.rst
index 620dfd2..b3e4723 100644
--- a/config/README.rst
+++ b/config/README.rst
@@ -70,7 +70,12 @@ Each directory contains the following files if they differ from the default
   - Configuration file for the MANIFEST to include all needed files in sdist
     and wheel.
 
-* setup.cfg
+* readthedocs.yaml.j2
+
+  - Configuration for https://readthedocs.org to build the documentation over
+    there if the package has documentation.
+
+* setup.cfg.j2
 
   - common setup.cfg, which should be copied to the repository of the
     package
@@ -106,8 +111,8 @@ The script does the following steps:
 
 1. Add the package name to ``packages.txt`` of the selected configuration type
    if it is not yet added.
-2. Copy ``setup.cfg``, ``tox.ini``, ``tests.yml``, ``MANIFEST.in`` and
-   ``.gitignore`` to the repository.
+2. Copy ``setup.cfg``, ``tox.ini``, ``tests.yml``, ``MANIFEST.in``,
+   ``.readthedocs.yaml`` (if needed), and ``.gitignore`` to the repository.
 3. Remove a possibly existing ``.coveragerc`` and ``bootstrap.py``. (Coverage
    is now configured in ``tox.ini`` for packages which are no buildout
    recipes.)
@@ -152,9 +157,6 @@ The following options are only needed one time as their values are stored in
   Define the configuration type (see `Types`_ section above) to be used for the
   repository.
 
---with-appveyor
-  Enable running the tests on AppVeyor, too.
-
 --with-macos
   Enable running the tests on macOS on GitHub Actions.
 
@@ -170,7 +172,9 @@ The following options are only needed one time as their values are stored in
   packages.
 
 --with-docs
-  Enable building the documentation using Sphinx.
+  Enable building the documentation using Sphinx. This will also create a
+  configuration file `.readthedocs.yaml` for integration with
+  https://readthedocs.org.
 
 --with-sphinx-doctests
   Enable running the documentation as doctest using Sphinx.
@@ -197,7 +201,6 @@ updated. Example:
     commit-id = "< commit-hash >"
 
     [python]
-    with-appveyor = false
     with-pypy = false
     with-docs = true
     with-sphinx-doctests = false
@@ -264,6 +267,9 @@ updated. Example:
         "    src/foo/bar.py: E221 E222",
         "extend-ignore = D203, W503",
         ]
+    additional-plugins = [
+        "mccabe",
+        ]
     additional-sources = "testproj foo bar.py"
 
     [manifest]
@@ -296,8 +302,8 @@ updated. Example:
         "- [\"3.8\",   \"py38-slim\"]",
         ]
     additional-exclude = [
-        "- { os: windows, config: [\"pypy-3.9\", \"pypy\"] }",
-        "- { os: macos, config: [\"pypy-3.9\", \"pypy\"] }",
+        "- { os: windows, config: [\"pypy-3.10\", \"pypy3\"] }",
+        "- { os: macos, config: [\"pypy-3.10\", \"pypy3\"] }",
         ]
     steps-before-checkout = [
         "- name: \"Set some Postgres settings\"",
@@ -318,36 +324,6 @@ updated. Example:
         "tox -f ${{ matrix.config[1] }}",
         ]
 
-    [appveyor]
-    global-env-vars = [
-        "ZOPE_INTERFACE_STRICT_IRO: 1",
-        ]
-    additional-matrix = [
-        "- { PYTHON: 38, PURE_PYTHON: 1 }",
-        "- { PYTHON: 38-x64, PURE_PYTHON: 1 }",
-        ]
-    install-steps = [
-        "- pip install zc.buildout",
-        "- buildout",
-        ]
-    build-script = [
-        "- python -W ignore setup.py -q bdist_wheel",
-        ]
-    test-steps = [
-        "- zope-testrunner --test-path=src",
-        "- jasmine",
-        ]
-    additional-lines = [
-        "artifacts:",
-        "  - path: 'dist\*.whl'",
-        "    name: wheel",
-        ]
-    replacement = [
-        "environment:",
-        "  matrix:",
-        "    ...",
-        ]
-
     [c-code]
     manylinux-install-setup = [
         "export CFLAGS=\"-pipe\"",
@@ -370,6 +346,12 @@ updated. Example:
         "*.mo",
         ]
 
+    [readthedocs]
+    build-extra = [
+        "apt_packages:",
+        "  - libldap2-dev",
+        ]
+
 
 Meta Options
 ````````````
@@ -386,9 +368,6 @@ commit-id
 Python options
 ``````````````
 
-with-appveyor
-  Run the tests also on AppVeyor: true/false
-
 with-macos
   Run the tests also on macOS on GitHub Actions: true/false, default: false
 
@@ -509,6 +488,10 @@ additional-config
   list of strings so the leading white spaces and comments are preserved when
   writing the value to ``setup.cfg``.
 
+additional-plugins
+  Some packages want to have additional flake8 plugins installed.
+  This option is a list of strings.
+
 additional-sources
   Sometimes not only ``src`` and ``setup.py`` contain Python code to be checked
   by flake8. Additional files or directories can be configured here. This
@@ -616,46 +599,6 @@ test-commands
   This option has to be a list of strings.
 
 
-AppVeyor options
-````````````````
-
-The corresponding section is named: ``[appveyor]``.
-
-global-env-vars
-  Environment variables to specify globally. This option has to be a list of
-  strings.
-
-additional-matrix
-  Additional environment matrix rows.  This option has to be a list of strings,
-  each starting with a ``-`` (unless you know what you're doing).
-
-install-steps
-  Steps to install the package under test on AppVeyor. This option has to be a
-  list of strings. It defaults to ``["- pip install -U -e .[test]"]``.
-
-build-script
-  Steps to to build the project. If this option is not given because no
-  additional build steps are necessary ``build: false`` is rendered to the
-  AppVeyor configuration. But if the config type is ``c-code`` it defaults to
-  ``['- python -W ignore setup.py -q bdist_wheel']``. This option has to be a
-  list of strings, each one starting with a ``-``.
-
-test-steps
-  Steps to run the tests on AppVeyor. This option has to be a list of strings
-  , each one starting with a ``-``.  It defaults to
-  ``["- zope-testrunner --test-path=src"]``.
-
-additional-lines
-  This option allows to add arbitrary additional lines to the end of the
-  configuration file. It has to be a list of strings.
-
-replacement
-  Replace the whole template of the AppVeyor configuration with the contents of
-  this option. Use this option as last resort if your needed changes are too
-  big to configure AppVeyor in another way. This option has to be a list of
-  strings.
-
-
 C-code options
 ``````````````
 
@@ -681,7 +624,6 @@ options
   (Additional) options used to configure ``zest.releaser``. This option has to
   be a list of strings and defaults to an empty list.
 
-
 git options
 ```````````
 
@@ -691,6 +633,16 @@ ignore
   Additional lines to be added to the ``.gitignore`` file. This option has to
   be a list of strings and defaults to an empty list.
 
+ReadTheDocs options
+```````````````````
+
+The corresponding section is named: ``[readthedocs]``.
+
+build-extra
+  Additional lines to be added to the ``build`` configuration in the
+  ReadTheDocs configuration file ``.readthedocs.yaml``. This option has to
+  be a list of strings and defaults to an empty list.
+
 Hints
 -----
 
diff --git a/config/buildout-recipe/packages.txt b/config/buildout-recipe/packages.txt
index 18a73f4..a327657 100644
--- a/config/buildout-recipe/packages.txt
+++ b/config/buildout-recipe/packages.txt
@@ -9,7 +9,6 @@ z3c.recipe.i18n
 zc.recipe.cmmi
 zdaemon
 zc.recipe.filestorage
-five.customerize
 z3c.recipe.compattest
 zc.relation
 zc.zodbrecipes
diff --git a/config/c-code/appveyor-publish.j2 b/config/c-code/appveyor-publish.j2
deleted file mode 100644
index b5b2113..0000000
--- a/config/c-code/appveyor-publish.j2
+++ /dev/null
@@ -1,8 +0,0 @@
-artifacts:
-  - path: 'dist\*.whl'
-    name: wheel
-
-deploy_script:
-  - ps: if ($env:APPVEYOR_REPO_TAG -eq $TRUE) { pip install twine; twine upload --skip-existing dist\*.whl }
-
-deploy: on
diff --git a/config/c-code/manylinux-install.sh.j2 b/config/c-code/manylinux-install.sh.j2
index f55056a..b8cc00f 100644
--- a/config/c-code/manylinux-install.sh.j2
+++ b/config/c-code/manylinux-install.sh.j2
@@ -30,13 +30,14 @@ yum -y install libffi-devel
 tox_env_map() {
     case $1 in
 {% if with_future_python %}
-        *"cp312"*) echo 'py312';;
+        *"cp313"*) echo 'py313';;
 {% endif %}
         *"cp37"*) echo 'py37';;
         *"cp38"*) echo 'py38';;
         *"cp39"*) echo 'py39';;
         *"cp310"*) echo 'py310';;
         *"cp311"*) echo 'py311';;
+        *"cp312"*) echo 'py312';;
         *) echo 'py';;
     esac
 }
@@ -45,15 +46,16 @@ tox_env_map() {
 for PYBIN in /opt/python/*/bin; do
     if \
 {% if with_future_python %}
-       [[ "${PYBIN}" == *"cp312"* ]] || \
+       [[ "${PYBIN}" == *"cp313"* ]] || \
 {% endif %}
        [[ "${PYBIN}" == *"cp311"* ]] || \
+       [[ "${PYBIN}" == *"cp312"* ]] || \
        [[ "${PYBIN}" == *"cp37"* ]] || \
        [[ "${PYBIN}" == *"cp38"* ]] || \
        [[ "${PYBIN}" == *"cp39"* ]] || \
        [[ "${PYBIN}" == *"cp310"* ]] ; then
 {% if with_future_python %}
-        if [[ "${PYBIN}" == *"cp312"* ]] ; then
+        if [[ "${PYBIN}" == *"cp313"* ]] ; then
             "${PYBIN}/pip" install --pre -e /io/
             "${PYBIN}/pip" wheel /io/ --pre -w wheelhouse/
         else
diff --git a/config/c-code/tests-cache.j2 b/config/c-code/tests-cache.j2
index d475fd4..f19b1d2 100644
--- a/config/c-code/tests-cache.j2
+++ b/config/c-code/tests-cache.j2
@@ -1,7 +1,7 @@
       - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       ###
@@ -10,15 +10,32 @@
       # to save the cache. So it must come before the thing we want to use
       # the cache.
       ###
-      - name: Get pip cache dir
-        id: pip-cache
+      - name: Get pip cache dir (default)
+        id: pip-cache-default
+        if: ${{ !startsWith(runner.os, 'Windows') }}
         run: |
           echo "dir=$(pip cache dir)" >>$GITHUB_OUTPUT
 
-      - name: pip cache
-        uses: actions/cache@v3
+      - name: Get pip cache dir (Windows)
+        id: pip-cache-windows
+        if: ${{ startsWith(runner.os, 'Windows') }}
+        run: |
+          echo "dir=$(pip cache dir)" >> $Env:GITHUB_OUTPUT
+
+      - name: pip cache (default)
+        uses: actions/cache@v4
+        if: ${{ !startsWith(runner.os, 'Windows') }}
+        with:
+          path: ${{ steps.pip-cache-default.outputs.dir }}
+          key: %(cache_key)s
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
+      - name: pip cache (Windows)
+        uses: actions/cache@v4
+        if: ${{ startsWith(runner.os, 'Windows') }}
         with:
-          path: ${{ steps.pip-cache.outputs.dir }}
+          path: ${{ steps.pip-cache-windows.outputs.dir }}
           key: %(cache_key)s
           restore-keys: |
             ${{ runner.os }}-pip-
diff --git a/config/c-code/tests-download.j2 b/config/c-code/tests-download.j2
index 048bc3c..c89cf27 100644
--- a/config/c-code/tests-download.j2
+++ b/config/c-code/tests-download.j2
@@ -1,6 +1,6 @@
 
       - name: Download %(package_name)s wheel
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: %(package_name)s-${{ runner.os }}-${{ matrix.python-version }}.whl
           path: dist/
diff --git a/config/c-code/tests-strategy.j2 b/config/c-code/tests-strategy.j2
index 8d4ede1..2a15505 100644
--- a/config/c-code/tests-strategy.j2
+++ b/config/c-code/tests-strategy.j2
@@ -3,23 +3,28 @@
       matrix:
         python-version:
 {% if with_pypy %}
-          - "pypy-3.9"
+          - "pypy-3.10"
 {% endif %}
           - "3.7"
           - "3.8"
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
 {% if with_future_python %}
           - "%(future_python_version)s"
 {% endif %}
+{% if with_windows %}
+        os: [ubuntu-20.04, macos-11, windows-latest]
+{% else %}
         os: [ubuntu-20.04, macos-11]
+{% endif %}
 {% if with_pypy or gha_additional_exclude %}
         exclude:
 {% endif %}
 {% if with_pypy %}
           - os: macos-11
-            python-version: "pypy-3.9"
+            python-version: "pypy-3.10"
 {% endif %}
 {% for line in gha_additional_exclude %}
           %(line)s
diff --git a/config/c-code/tests.yml.j2 b/config/c-code/tests.yml.j2
index c0e378e..b32b65b 100644
--- a/config/c-code/tests.yml.j2
+++ b/config/c-code/tests.yml.j2
@@ -96,7 +96,17 @@ jobs:
     steps:
 {% include 'tests-cache.j2' %}
 
+{% if with_future_python %}
+      - name: Install Build Dependencies (%(future_python_version)s)
+        if: matrix.python-version == '%(future_python_version)s'
+        run: |
+          pip install -U pip
+          pip install -U setuptools wheel twine cffi
+{% endif %}
       - name: Install Build Dependencies
+{% if with_future_python %}
+        if: matrix.python-version != '%(future_python_version)s'
+{% endif %}
         run: |
           pip install -U pip
           pip install -U setuptools wheel twine cffi
@@ -182,7 +192,7 @@ jobs:
     {% else %}
           !startsWith(runner.os, 'Mac')
     {% endif %}
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
   {% if kind == 'macOS arm64' %}
           # The arm64 wheel is uploaded with a different name just so it can be
@@ -237,11 +247,11 @@ jobs:
   {% endfor %}
 {% else %}
 {% if with_future_python %}
-      - name: Install %(package_name)s %(future_python_version)s
-        if: ${{ startsWith(matrix.python-version, '%(future_python_version)s') }}
+      - name: Install %(package_name)s %(future_python_version)s ${{ matrix.python-version }}
+        if: matrix.python-version == '%(future_python_version)s'
         run: |
           pip install -U wheel setuptools
-          # coverage has a wheel on PyPI for a future python version which is
+          # coverage might have a wheel on PyPI for a future python version which is
           # not ABI compatible with the current one, so build it from sdist:
           pip install -U --no-binary :all: coverage
           # Unzip into src/ so that testrunner can find the .so files
@@ -279,12 +289,14 @@ jobs:
         run:
         {% if gha_test_commands %}
         {% for line in gha_test_commands %}
-          PURE_PYTHON=1 %(line)s
+          %(line)s
         {% endfor %}
         {% else %}
           # coverage makes PyPy run about 3x slower!
-          PURE_PYTHON=1 python -m coverage run -p -m zope.testrunner --test-path=src --auto-color --auto-progress
+          python -m coverage run -p -m zope.testrunner --test-path=src --auto-color --auto-progress
         {% endif %}
+        env:
+          PURE_PYTHON: 1
       - name: Report Coverage
         run: |
           coverage combine
@@ -398,12 +410,12 @@ jobs:
           bash .manylinux.sh
 
       - name: Upload %(package_name)s wheels
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           path: wheelhouse/*whl
           name: manylinux_${{ matrix.image }}_wheels.zip
       - name: Restore pip cache permissions
-        run: sudo chown -R $(whoami) ${{ steps.pip-cache.outputs.dir }}
+        run: sudo chown -R $(whoami) ${{ steps.pip-cache-default.outputs.dir }}
       - name: Publish package to PyPI
         uses: pypa/gh-action-pypi-publish@release/v1
         if: >
diff --git a/config/c-code/tox.ini.j2 b/config/c-code/tox.ini.j2
index f896452..872d38a 100644
--- a/config/c-code/tox.ini.j2
+++ b/config/c-code/tox.ini.j2
@@ -11,8 +11,9 @@ envlist =
     py39,py39-pure
     py310,py310-pure
     py311,py311-pure
-{% if with_future_python %}
     py312,py312-pure
+{% if with_future_python %}
+    py313,py313-pure
 {% endif %}
 {% if with_pypy %}
     pypy3
diff --git a/config/config-package.py b/config/config-package.py
index 34ba0d9..1e0a4f8 100755
--- a/config/config-package.py
+++ b/config/config-package.py
@@ -1,4 +1,16 @@
 #!/usr/bin/env python3
+##############################################################################
+#
+# Copyright (c) 2019 Zope Foundation and Contributors.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
 from functools import cached_property
 from shared.call import abort
 from shared.call import call
@@ -7,13 +19,12 @@
 from shared.git import git_branch
 from shared.packages import MANYLINUX_PYTHON_VERSION
 from shared.path import change_dir
-from shared.toml_encoder import TomlArraySeparatorEncoderWithNewline
 import argparse
 import collections
 import jinja2
 import pathlib
 import shutil
-import toml
+import tomlkit
 
 
 META_HINT = """\
@@ -24,7 +35,7 @@
 Generated from:
 https://github.com/zopefoundation/meta/tree/master/config/{config_type}
 --> """
-FUTURE_PYTHON_VERSION = "3.12.0-rc.3"
+FUTURE_PYTHON_VERSION = "3.13.0-alpha - 3.13.0"
 DEFAULT = object()
 
 
@@ -56,15 +67,8 @@ def handle_command_line_arguments():
         '--no-flake8',
         dest='use_flake8',
         action='store_false',
-        default=None,
+        default=True,
         help='Do not include flake8 and isort in the linting configuration.')
-    parser.add_argument(
-        '--with-appveyor',
-        dest='with_appveyor',
-        action='store_true',
-        default=None,
-        help='Activate running tests on AppVeyor, too, '
-        'if not already configured in .meta.toml.')
     parser.add_argument(
         '--with-macos',
         dest='with_macos',
@@ -100,7 +104,7 @@ def handle_command_line_arguments():
         '--with-sphinx',
         dest='with_docs',
         action='store_true',
-        default=None,
+        default=False,
         help='Activate building docs if not already configured in .meta.toml.')
     parser.add_argument(
         '--with-sphinx-doctests',
@@ -167,17 +171,14 @@ def _read_meta_configuration(self):
         """Read and update meta configuration"""
         meta_toml_path = self.path / '.meta.toml'
         if meta_toml_path.exists():
-            meta_cfg = toml.load(meta_toml_path)
+            with open(meta_toml_path, 'rb') as meta_f:
+                meta_cfg = tomlkit.load(meta_f)
             meta_cfg = collections.defaultdict(dict, **meta_cfg)
         else:
             meta_cfg = collections.defaultdict(dict)
             if self.args.with_docs is None:
                 self.args.with_docs = (self.path / "docs" / "conf.py").exists()
                 print(f"Autodetecting --with-docs: {self.args.with_docs}")
-            if self.args.with_appveyor is None:
-                value = (self.path / "appveyor.yml").exists()
-                self.args.with_appveyor = value
-                print(f"Autodetecting --with-appveyor: {value}")
         return meta_cfg
 
     @cached_property
@@ -209,10 +210,6 @@ def jinja_env(self):
             lstrip_blocks=True,
         )
 
-    @cached_property
-    def with_appveyor(self):
-        return self._set_python_config_value('appveyor')
-
     @cached_property
     def with_macos(self):
         return self._set_python_config_value('macos')
@@ -330,9 +327,13 @@ def gitignore(self):
         )
 
     def readthedocs(self):
+        build_extra = self.cfg_option(
+            'readthedocs', 'build-extra', default=[])
         self.copy_with_meta(
-            'readthedocs.yaml.j2', self.path / '.readthedocs.yaml',
-            self.config_type
+            'readthedocs.yaml.j2',
+            self.path / '.readthedocs.yaml',
+            self.config_type,
+            build_extra=build_extra,
         )
 
     def coveragerc(self):
@@ -417,6 +418,8 @@ def tox(self):
         coverage_setenv = self.tox_option('coverage-setenv')
         coverage_run_additional_config = self.meta_cfg['coverage-run'].get(
             'additional-config', [])
+        flake8_additional_plugins = self.meta_cfg['flake8'].get(
+            'additional-plugins', '')
         flake8_additional_sources = self.meta_cfg['flake8'].get(
             'additional-sources', '')
         if flake8_additional_sources:
@@ -448,6 +451,7 @@ def tox(self):
             coverage_setenv=coverage_setenv,
             fail_under=self.fail_under,
             flake8_additional_sources=flake8_additional_sources,
+            flake8_additional_plugins=flake8_additional_plugins,
             isort_additional_sources=isort_additional_sources,
             testenv_additional=testenv_additional,
             testenv_additional_extras=testenv_additional_extras,
@@ -513,38 +517,7 @@ def manifest_in(self):
             self.copy_with_meta(
                 'MANIFEST.in.j2', self.path / 'MANIFEST.in', self.config_type,
                 additional_rules=additional_manifest_rules,
-                with_docs=self.with_docs, with_appveyor=self.with_appveyor)
-
-    def appveyor(self):
-        appveyor_global_env_vars = self.meta_cfg['appveyor'].get(
-            'global-env-vars', [])
-        appveyor_additional_matrix = self.meta_cfg['appveyor'].get(
-            'additional-matrix', [])
-        appveyor_install_steps = self.meta_cfg['appveyor'].get(
-            'install-steps', ['- pip install -U -e .[test]'])
-        appveyor_build_script = self.meta_cfg['appveyor'].get(
-            'build-script', [])
-        if self.config_type == 'c-code' and not appveyor_build_script:
-            appveyor_build_script = [
-                '- python -W ignore setup.py -q bdist_wheel']
-        appveyor_test_steps = self.meta_cfg['appveyor'].get(
-            'test-steps', ['- zope-testrunner --test-path=src'])
-        appveyor_additional_lines = self.meta_cfg['appveyor'].get(
-            'additional-lines', [])
-        appveyor_replacement = self.meta_cfg['appveyor'].get('replacement', [])
-        self.copy_with_meta(
-            'appveyor.yml.j2',
-            self.path / 'appveyor.yml',
-            self.config_type,
-            with_future_python=self.with_future_python,
-            global_env_vars=appveyor_global_env_vars,
-            additional_matrix=appveyor_additional_matrix,
-            install_steps=appveyor_install_steps,
-            test_steps=appveyor_test_steps,
-            build_script=appveyor_build_script,
-            additional_lines=appveyor_additional_lines,
-            replacement=appveyor_replacement,
-        )
+                with_docs=self.with_docs)
 
     def copy_with_meta(
             self, template_name, destination, config_type,
@@ -587,7 +560,8 @@ def configure(self):
         with change_dir(self.path):
             # We have to add it here otherwise the linter complains
             # that it is not added.
-            call('git', 'add', 'CONTRIBUTING.md')
+            if self.args.commit:
+                call('git', 'add', 'CONTRIBUTING.md')
 
         self.coveragerc()
         self.manylinux_sh()
@@ -595,9 +569,6 @@ def configure(self):
         self.tests_yml()
         self.manifest_in()
 
-        if self.with_appveyor:
-            self.appveyor()
-
         with change_dir(self.path) as cwd:
             if pathlib.Path('bootstrap.py').exists():
                 call('git', 'rm', 'bootstrap.py')
@@ -605,23 +576,20 @@ def configure(self):
                 call('git', 'rm', '.travis.yml')
             if self.rm_coveragerc:
                 call('git', 'rm', '.coveragerc')
-            if self.add_coveragerc:
+            if self.add_coveragerc and self.args.commit:
                 call('git', 'add', '.coveragerc')
-            if self.with_appveyor:
-                call('git', 'add', 'appveyor.yml')
-            if self.with_docs:
+            if pathlib.Path('appveyor.yml').exists():
+                call('git', 'rm', 'appveyor.yml')
+            if self.with_docs and self.args.commit:
                 call('git', 'add', '.readthedocs.yaml')
-            if self.add_manylinux:
+            if self.add_manylinux and self.args.commit:
                 call('git', 'add', '.manylinux.sh', '.manylinux-install.sh')
             # Remove empty sections:
             meta_cfg = {k: v for k, v in self.meta_cfg.items() if v}
             with open('.meta.toml', 'w') as meta_f:
                 meta_f.write(META_HINT.format(config_type=self.config_type))
                 meta_f.write('\n')
-                toml.dump(
-                    meta_cfg, meta_f,
-                    TomlArraySeparatorEncoderWithNewline(
-                        separator=',\n   ', indent_first_line=True))
+                tomlkit.dump(meta_cfg, meta_f)
 
             tox_path = shutil.which('tox') or (
                 pathlib.Path(cwd) / 'bin' / 'tox')
diff --git a/config/default/MANIFEST.in.j2 b/config/default/MANIFEST.in.j2
index 130577d..69c679a 100644
--- a/config/default/MANIFEST.in.j2
+++ b/config/default/MANIFEST.in.j2
@@ -3,9 +3,6 @@ include *.rst
 include *.txt
 include buildout.cfg
 include tox.ini
-{% if with_appveyor %}
-include appveyor.yml
-{% endif %}
 {% if config_type in ('buildout-recipe', 'c-code') %}
 include .coveragerc
 {% endif %}
diff --git a/config/default/appveyor.yml.j2 b/config/default/appveyor.yml.j2
deleted file mode 100644
index 5c32846..0000000
--- a/config/default/appveyor.yml.j2
+++ /dev/null
@@ -1,63 +0,0 @@
-{% if replacement %}
-{% for line in replacement %}
-%(line)s
-{% endfor %}
-{% else %}
-environment:
-{% for line in global_env_vars %}
-  %(line)s
-{% endfor %}
-
-  matrix:
-    - python: 37-x64
-    - python: 38-x64
-    - python: 39-x64
-    - python: 310-x64
-    - python: 311-x64
-{% if with_future_python %}
-    # `multibuild` cannot install non-final versions as they are not on
-    # ftp.python.org, so we skip Python 3.11 until its final release:
-    # - python: 312-x64
-{% endif %}
-{% for line in additional_matrix %}
-    %(line)s
-{% endfor %}
-
-install:
-  - "SET PYTHONVERSION=%PYTHON%"
-  - "SET PATH=C:\\Python%PYTHON%;c:\\Python%PYTHON%\\scripts;%PATH%"
-  - ps: |
-      $env:PYTHON = "C:\\Python${env:PYTHON}"
-      if (-not (Test-Path $env:PYTHON)) {
-        curl -o install_python.ps1 https://raw.githubusercontent.com/matthew-brett/multibuild/11a389d78892cf90addac8f69433d5e22bfa422a/install_python.ps1
-        .\install_python.ps1
-      }
-  - ps: if (-not (Test-Path $env:PYTHON)) { throw "No $env:PYTHON" }
-  - echo "C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin\SetEnv.cmd" /x64 > "C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\vcvars64.bat"
-  - python -m pip install -U pip
-  - pip install -U setuptools wheel
-{% for line in install_steps %}
-  %(line)s
-{% endfor %}
-
-matrix:
-  fast_finish: true
-
-{% if build_script %}
-build_script:
-  {% for line in build_script %}
-  %(line)s
-  {% endfor %}
-{% else %}
-build: false
-{% endif %}
-
-test_script:
-{% for line in test_steps %}
-  %(line)s
-{% endfor %}
-{% include 'appveyor-publish.j2' %}
-{% for line in additional_lines %}
-%(line)s
-{% endfor %}
-{% endif %}
diff --git a/config/default/readthedocs.yaml.j2 b/config/default/readthedocs.yaml.j2
index eb6674b..36707af 100644
--- a/config/default/readthedocs.yaml.j2
+++ b/config/default/readthedocs.yaml.j2
@@ -9,6 +9,11 @@ build:
   os: ubuntu-22.04
   tools:
     python: "3.11"
+{% if build_extra %}
+  {% for line in build_extra %}
+  %(line)s
+  {% endfor %}
+{% endif %}
 
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
diff --git a/config/default/setup.cfg.j2 b/config/default/setup.cfg.j2
index adc04a0..7d6a325 100644
--- a/config/default/setup.cfg.j2
+++ b/config/default/setup.cfg.j2
@@ -1,5 +1,3 @@
-[bdist_wheel]
-universal = 0
 {% if zest_releaser_options %}
 
 [zest.releaser]
diff --git a/config/default/tests.yml.j2 b/config/default/tests.yml.j2
index 0511a07..92dd6a6 100644
--- a/config/default/tests.yml.j2
+++ b/config/default/tests.yml.j2
@@ -35,17 +35,19 @@ jobs:
 {% endif %}
         config:
         # [Python version, tox env]
+        - ["3.9",   "release-check"]
         - ["3.9",   "lint"]
         - ["3.7",   "py37"]
         - ["3.8",   "py38"]
         - ["3.9",   "py39"]
         - ["3.10",  "py310"]
         - ["3.11",  "py311"]
+        - ["3.12",  "py312"]
 {% if with_future_python %}
-        - ["%(future_python_version)s",  "py312"]
+        - ["%(future_python_version)s",  "py313"]
 {% endif %}
 {% if with_pypy %}
-        - ["pypy-3.9", "pypy3"]
+        - ["pypy-3.10", "pypy3"]
 {% endif %}
 {% if with_docs %}
         - ["3.9",   "docs"]
@@ -60,6 +62,7 @@ jobs:
         exclude:
 {% endif %}
 {% if with_windows %}
+          - { os: ["windows", "windows-latest"], config: ["3.9",   "release-check"] }
           - { os: ["windows", "windows-latest"], config: ["3.9",   "lint"] }
   {% if with_docs %}
           - { os: ["windows", "windows-latest"], config: ["3.9",   "docs"] }
@@ -67,6 +70,7 @@ jobs:
           - { os: ["windows", "windows-latest"], config: ["3.9",   "coverage"] }
 {% endif %}
 {% if with_macos %}
+          - { os: ["macos", "macos-11"], config: ["3.9",   "release-check"] }
           - { os: ["macos", "macos-11"], config: ["3.9",   "lint"] }
   {% if with_docs %}
           - { os: ["macos", "macos-11"], config: ["3.9",   "docs"] }
@@ -75,7 +79,10 @@ jobs:
           # macOS/Python 3.11+ is set up for universal2 architecture
           # which causes build and package selection issues.
           - { os: ["macos", "macos-11"], config: ["3.11",  "py311"] }
-          - { os: ["macos", "macos-11"], config: ["%(future_python_version)s",  "py312"] }
+          - { os: ["macos", "macos-11"], config: ["3.12",  "py312"] }
+  {% if with_future_python %}
+          - { os: ["macos", "macos-11"], config: ["%(future_python_version)s",  "py313"] }
+  {% endif %}
 {% endif %}
 {% for line in gha_additional_exclude %}
           %(line)s
@@ -92,13 +99,13 @@ jobs:
 {% for line in steps_before_checkout %}
     %(line)s
 {% endfor %}
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.config[0] }}
     - name: Pip cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ matrix.config[0] }}-${{ hashFiles('setup.*', 'tox.ini') }}
diff --git a/config/default/tox-envlist.j2 b/config/default/tox-envlist.j2
index 460cfef..199cb60 100644
--- a/config/default/tox-envlist.j2
+++ b/config/default/tox-envlist.j2
@@ -1,14 +1,16 @@
 [tox]
 minversion = 3.18
 envlist =
+    release-check
     lint
     py37
     py38
     py39
     py310
     py311
-{% if with_future_python %}
     py312
+{% if with_future_python %}
+    py313
 {% endif %}
 {% if with_pypy %}
     pypy3
diff --git a/config/default/tox-lint.j2 b/config/default/tox-lint.j2
index 519edd8..bdd6ec5 100644
--- a/config/default/tox-lint.j2
+++ b/config/default/tox-lint.j2
@@ -1,21 +1,21 @@
+{% include 'tox-release-check.j2' %}
 
 [testenv:lint]
 basepython = python3
 skip_install = true
-commands =
+deps =
+    isort
 {% if use_flake8 %}
+    flake8
+{% for line in flake8_additional_plugins %}
+    %(line)s
+{% endfor %}
+{% endif %}
+commands =
     isort --check-only --diff {toxinidir}/src {toxinidir}/setup.py%(isort_additional_sources)s
+{% if use_flake8 %}
     flake8 src setup.py%(flake8_additional_sources)s
 {% endif %}
-    check-manifest
-    check-python-versions
-deps =
-    check-manifest
-    check-python-versions >= 0.19.1
-    wheel
-{% if use_flake8 %}
-    flake8
-    isort
 
 [testenv:isort-apply]
 basepython = python3
@@ -25,4 +25,3 @@ deps =
     isort
 commands =
     isort {toxinidir}/src {toxinidir}/setup.py%(isort_additional_sources)s []
-{% endif %}
diff --git a/config/default/tox-release-check.j2 b/config/default/tox-release-check.j2
new file mode 100644
index 0000000..db35b26
--- /dev/null
+++ b/config/default/tox-release-check.j2
@@ -0,0 +1,16 @@
+[testenv:release-check]
+description = ensure that the distribution is ready to release
+basepython = python3
+skip_install = true
+deps =
+    twine
+    build
+    check-manifest
+    check-python-versions >= 0.20.0
+    wheel
+commands_pre =
+commands =
+    check-manifest
+    check-python-versions --only setup.py,tox.ini,.github/workflows/tests.yml
+    python -m build --sdist --no-isolation
+    twine check dist/*
diff --git a/config/default/tox-testenv.j2 b/config/default/tox-testenv.j2
index f264940..5b6e5f4 100644
--- a/config/default/tox-testenv.j2
+++ b/config/default/tox-testenv.j2
@@ -6,7 +6,7 @@ package = wheel
 wheel_build_env = .pkg
 {% endif %}
 {% if with_future_python %}
-pip_pre = py312: true
+pip_pre = py313: true
 {% endif %}
 deps =
   {% for line in testenv_deps %}
@@ -15,16 +15,14 @@ deps =
   {% if with_sphinx_doctests and with_future_python %}
     Sphinx
   {% endif %}
-{% if testenv_setenv or with_future_python %}
 setenv =
+{% if testenv_setenv %}
   {% for line in testenv_setenv %}
     %(line)s
   {% endfor %}
-  {% if with_future_python %}
+{% endif %}
     py312: VIRTUALENV_PIP=23.1.2
     py312: PIP_REQUIRE_VIRTUALENV=0
-  {% endif %}
-{% endif %}
 {% if testenv_commands_pre %}
 commands_pre =
   {% for line in testenv_commands_pre %}
diff --git a/config/drop-legacy-python.py b/config/drop-legacy-python.py
index aec2cc6..50ab1de 100644
--- a/config/drop-legacy-python.py
+++ b/config/drop-legacy-python.py
@@ -1,4 +1,16 @@
-#!/usr/bin/env', 'python3
+#!/usr/bin/env python3
+##############################################################################
+#
+# Copyright (c) 2022 Zope Foundation and Contributors.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
 from shared.call import call
 from shared.call import wait_for_accept
 from shared.git import get_branch_name
@@ -10,7 +22,7 @@
 import pathlib
 import shutil
 import sys
-import toml
+import tomlkit
 
 
 parser = argparse.ArgumentParser(
@@ -44,7 +56,8 @@
 with change_dir(path) as cwd_str:
     cwd = pathlib.Path(cwd_str)
     bin_dir = cwd / 'bin'
-    meta_cfg = collections.defaultdict(dict, **toml.load('.meta.toml'))
+    with open('.meta.toml', 'rb') as meta_f:
+        meta_cfg = collections.defaultdict(dict, **tomlkit.load(meta_f))
     config_type = meta_cfg['meta']['template']
     branch_name = get_branch_name(args.branch_name, config_type)
     updating = git_branch(branch_name)
diff --git a/config/meta-cfg-to-toml.py b/config/meta-cfg-to-toml.py
deleted file mode 100644
index 1955b32..0000000
--- a/config/meta-cfg-to-toml.py
+++ /dev/null
@@ -1,102 +0,0 @@
-#!/usr/bin/env python3
-from configparser import ConfigParser
-from shared.call import call
-from shared.path import change_dir
-from shared.toml_encoder import TomlArraySeparatorEncoderWithNewline
-import argparse
-import collections
-import pathlib
-import sys
-import toml
-
-
-parser = argparse.ArgumentParser(
-    description='Convert the .meta.cfg in a package to a .meta.toml.')
-parser.add_argument(
-    'path', type=pathlib.Path, help='path to the repository to be changed')
-parser.add_argument(
-    '--no-push',
-    dest='no_push',
-    action='store_true',
-    help='Prevent direct push.')
-
-
-args = parser.parse_args()
-path = args.path
-meta_cfg_path = path / '.meta.cfg'
-
-if not (path / '.git').exists():
-    raise ValueError('`path` does not point to a git clone of a repository!')
-
-if not meta_cfg_path.exists():
-    raise ValueError('`path` does have a `.meta.cfg`!')
-
-
-src = ConfigParser()
-src.read(meta_cfg_path)
-src = src['meta']
-
-dest = collections.defaultdict(dict)
-dest['meta']['template'] = src['template']
-dest['meta']['commit-id'] = src['commit-id']
-
-dest['python']['with-pypy'] = src.getboolean('with-pypy', False)
-dest['python']['with-docs'] = src.getboolean('with-docs', False)
-dest['python']['with-sphinx-doctests'] = src.getboolean(
-    'with-sphinx-doctests', False)
-
-dest['coverage']['fail-under'] = int(src.setdefault('fail-under', 0))
-
-flake8_config = src.get('additional-flake8-config', '').strip()
-if flake8_config:
-    dest['flake8']['additional-config'] = flake8_config.splitlines()
-
-manifest_rules = src.get('additional-manifest-rules', '').strip()
-if manifest_rules:
-    dest['manifest']['additional-rules'] = manifest_rules.splitlines()
-
-check_manifest = src.get('additional-check-manifest-ignores', '').strip()
-if check_manifest:
-    dest['check-manifest']['additional-ignores'] = check_manifest.splitlines()
-
-
-branch_name = 'covert.meta.cfg-to-.meta.toml'
-with change_dir(path) as cwd:
-    with open('.meta.toml', 'w') as meta_f:
-        meta_f.write(
-            '# Generated from:\n'
-            '# https://github.com/zopefoundation/meta/tree/master/config/'
-            f'{src["template"]}\n')
-        toml.dump(
-            dest, meta_f,
-            TomlArraySeparatorEncoderWithNewline(
-                separator=',\n   ', indent_first_line=True))
-
-    branches = call(
-        'git', 'branch', '--format', '%(refname:short)',
-        capture_output=True).stdout.splitlines()
-    if branch_name in branches:
-        call('git', 'checkout', branch_name)
-        updating = True
-    else:
-        call('git', 'checkout', '-b', branch_name)
-        updating = False
-    call('git', 'rm', '.meta.cfg')
-    call('git', 'add', '.meta.toml')
-    call('git', 'commit', '-m', 'Switching from .meta.cfg to .meta.toml.')
-    config_package_args = [
-        sys.executable,
-        'config-package.py',
-        path,
-        f'--branch={branch_name}',
-    ]
-    if args.no_push:
-        config_package_args.append('--no-push')
-    call(*config_package_args, cwd=cwd)
-    print()
-    print('Created resp. updated branch', end='')
-    if args.no_push:
-        print(', but did not push upstream.')
-    else:
-        call('git', 'push', '--set-upstream', 'origin', branch_name)
-        print('and pushed upstream.')
diff --git a/config/multi-call.py b/config/multi-call.py
index 0253135..bceae41 100644
--- a/config/multi-call.py
+++ b/config/multi-call.py
@@ -1,4 +1,16 @@
 #!/usr/bin/env python3
+##############################################################################
+#
+# Copyright (c) 2020 Zope Foundation and Contributors.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
 from shared.call import call
 from shared.packages import list_packages
 from shared.path import change_dir
diff --git a/config/pure-python/packages.txt b/config/pure-python/packages.txt
index a2090d3..64b82dd 100644
--- a/config/pure-python/packages.txt
+++ b/config/pure-python/packages.txt
@@ -113,7 +113,6 @@ zope.app.dependable
 zope.app.component
 z3c.batching
 zc.set
-cipher.encryptingstorage
 zope.app.testing
 transaction
 zope.sequencesort
diff --git a/config/re-enable-actions.py b/config/re-enable-actions.py
index 4905108..fadc763 100644
--- a/config/re-enable-actions.py
+++ b/config/re-enable-actions.py
@@ -1,4 +1,16 @@
-#!/bin/env python3
+#!/usr/bin/env python3
+##############################################################################
+#
+# Copyright (c) 2021 Zope Foundation and Contributors.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
 from shared.call import call
 from shared.packages import ALL_REPOS
 from shared.packages import ORG
diff --git a/config/requirements.txt b/config/requirements.txt
index b9270b7..729bc69 100644
--- a/config/requirements.txt
+++ b/config/requirements.txt
@@ -1,7 +1,7 @@
-check-python-versions==0.20.0
-Jinja2==3.1.2
-pyupgrade==3.3.1
-toml==0.10.2
-tox==4.0.14
-zest.releaser==7.2.0
+check-python-versions==0.21.3
+Jinja2==3.1.3
+pyupgrade==3.3.2
+tomlkit==0.12.1
+tox==4.8.0
 requests==2.31.0
+zest.releaser==8.0.0
diff --git a/config/shared/call.py b/config/shared/call.py
index 0b18ae7..fd16b5c 100644
--- a/config/shared/call.py
+++ b/config/shared/call.py
@@ -1,3 +1,15 @@
+##############################################################################
+#
+# Copyright (c) 2020 Zope Foundation and Contributors.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
 import subprocess
 import sys
 
diff --git a/config/shared/git.py b/config/shared/git.py
index 2cd648f..88f8c1d 100644
--- a/config/shared/git.py
+++ b/config/shared/git.py
@@ -1,3 +1,15 @@
+##############################################################################
+#
+# Copyright (c) 2022 Zope Foundation and Contributors.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
 from .call import call
 from .path import change_dir
 import pathlib
diff --git a/config/shared/packages.py b/config/shared/packages.py
index 6416f78..b87fda1 100644
--- a/config/shared/packages.py
+++ b/config/shared/packages.py
@@ -1,3 +1,15 @@
+##############################################################################
+#
+# Copyright (c) 2021 Zope Foundation and Contributors.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
 import itertools
 import pathlib
 
diff --git a/config/shared/path.py b/config/shared/path.py
index 42a81c3..a1f83c7 100644
--- a/config/shared/path.py
+++ b/config/shared/path.py
@@ -1,3 +1,15 @@
+##############################################################################
+#
+# Copyright (c) 2020 Zope Foundation and Contributors.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
 import argparse
 import contextlib
 import os
diff --git a/config/shared/toml_encoder.py b/config/shared/toml_encoder.py
deleted file mode 100644
index a75b72c..0000000
--- a/config/shared/toml_encoder.py
+++ /dev/null
@@ -1,35 +0,0 @@
-import toml
-
-
-class TomlArraySeparatorEncoderWithNewline(toml.TomlArraySeparatorEncoder):
-    """Special version indenting the first element of and array.
-
-    In https://github.com/zopefoundation/meta/issues/118 we suggest to switch
-    to Python 3.11 and its built-in toml support. We'll see if this path is
-    still needed then.
-    """
-
-    def __init__(self, _dict=dict, preserve=False, separator=",",
-                 indent_first_line=False):
-        super(TomlArraySeparatorEncoderWithNewline, self).__init__(
-            _dict=_dict, preserve=preserve, separator=separator)
-        self.indent_first_line = indent_first_line
-
-    def dump_list(self, v):
-        t = []
-        retval = "["
-        if self.indent_first_line:
-            retval += self.separator.strip(',')
-        for u in v:
-            t.append(self.dump_value(u))
-        while t != []:
-            s = []
-            for u in t:
-                if isinstance(u, list):
-                    for r in u:
-                        s.append(r)
-                else:
-                    retval += " " + u + self.separator
-            t = s
-        retval += " ]"
-        return retval
diff --git a/config/toolkit/packages.txt b/config/toolkit/packages.txt
index 2df7eb2..e429104 100644
--- a/config/toolkit/packages.txt
+++ b/config/toolkit/packages.txt
@@ -2,3 +2,4 @@
 # Do not edit the file by hand but use the script config-package.py as
 # described in README.rst
 zopetoolkit
+groktoolkit
diff --git a/config/toolkit/tox.ini.j2 b/config/toolkit/tox.ini.j2
index d90dd62..6ea08e7 100644
--- a/config/toolkit/tox.ini.j2
+++ b/config/toolkit/tox.ini.j2
@@ -9,16 +9,14 @@ deps =
 {% for line in testenv_deps %}
     %(line)s
 {% endfor %}
-{% if testenv_setenv or with_future_python %}
 setenv =
+{% if testenv_setenv %}
   {% for line in testenv_setenv %}
     %(line)s
   {% endfor %}
-  {% if with_future_python %}
+{% endif %}
     py312: VIRTUALENV_PIP=23.1.2
     py312: PIP_REQUIRE_VIRTUALENV=0
-  {% endif %}
-{% endif %}
 commands_pre =
 {% if testenv_commands_pre %}
   {% for line in testenv_commands_pre %}
@@ -56,6 +54,7 @@ deps =
 {% if use_flake8 %}
     flake8
     isort
+{% include 'tox-release-check.j2' %}
 
 [testenv:isort-apply]
 basepython = python3
diff --git a/config/zope-product/tox.ini.j2 b/config/zope-product/tox.ini.j2
index 577d28a..1158711 100644
--- a/config/zope-product/tox.ini.j2
+++ b/config/zope-product/tox.ini.j2
@@ -9,16 +9,14 @@ deps =
 {% for line in testenv_deps %}
     %(line)s
 {% endfor %}
-{% if testenv_setenv or with_future_python %}
 setenv =
+{% if testenv_setenv %}
   {% for line in testenv_setenv %}
     %(line)s
   {% endfor %}
-  {% if with_future_python %}
+{% endif %}
     py312: VIRTUALENV_PIP=23.1.2
     py312: PIP_REQUIRE_VIRTUALENV=0
-  {% endif %}
-{% endif %}
 commands_pre =
 {% if testenv_commands_pre %}
   {% for line in testenv_commands_pre %}
@@ -33,11 +31,12 @@ commands =
     %(line)s
   {% endfor %}
 {% else %}
-    {envdir}/bin/test {posargs:-cv}
+    {envbindir}/test {posargs:-cv}
 {% endif %}
 {% for line in testenv_additional %}
 %(line)s
 {% endfor %}
+{% include 'tox-release-check.j2' %}
 
 [testenv:lint]
 basepython = python3
@@ -52,11 +51,7 @@ commands =
     isort --check-only --diff {toxinidir}/src {toxinidir}/setup.py%(isort_additional_sources)s
     flake8 {toxinidir}/src {toxinidir}/setup.py%(flake8_additional_sources)s
 {% endif %}
-    check-manifest
-    check-python-versions
 deps =
-    check-manifest
-    check-python-versions
 {% if use_flake8 %}
     flake8
     isort
@@ -97,7 +92,7 @@ commands =
     %(line)s
   {% endfor %}
 {% else %}
-    coverage run {envdir}/bin/test {posargs:-cv}
+    coverage run {envbindir}/test {posargs:-cv}
 {% endif %}
     coverage html
     coverage report -m --fail-under=%(fail_under)s