diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2fea475..f61de8f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -106,6 +106,16 @@ jobs:
         include:
           - python-version: "3.14t"
             os: ubuntu-latest
+          - python-version: "3.14t"
+            os: macos-latest
+          - python-version: "3.14t"
+            os: windows-latest
+          - python-version: "3.15t"
+            os: ubuntu-latest
+          - python-version: "3.15t"
+            os: macos-latest
+          - python-version: "3.15t"
+            os: windows-latest
 
     steps:
       - name: checkout
@@ -151,12 +161,12 @@ jobs:
 
 
       - name: Install Build Dependencies (3.15)
-        if: matrix.python-version == '3.15'
+        if: startsWith(matrix.python-version, '3.15')
         run: |
           pip install -U pip
           pip install -U "setuptools >= 78.1.1,< 82" wheel twine cffi pycparser
       - name: Install Build Dependencies
-        if: matrix.python-version != '3.15'
+        if: ${{ !startsWith(matrix.python-version, '3.15') }}
         run: |
           pip install -U pip
           pip install -U "setuptools >= 78.1.1,< 82" wheel twine
@@ -205,14 +215,14 @@ jobs:
           python setup.py sdist
 
       - name: Install persistent and dependencies (3.15)
-        if: matrix.python-version == '3.15'
+        if: startsWith(matrix.python-version, '3.15')
         run: |
           # Install to collect dependencies into the (pip) cache.
           # Use "--pre" here because dependencies with support for this future
           # Python release may only be available as pre-releases
           pip install --pre .[test]
       - name: Install persistent and dependencies
-        if: matrix.python-version != '3.15'
+        if: ${{ !startsWith(matrix.python-version, '3.15') }}
         run: |
           # Install to collect dependencies into the (pip) cache.
           pip install -U pip "setuptools >= 78.1.1,< 82"
@@ -221,6 +231,9 @@ jobs:
       - name: Check persistent build
         run: |
           ls -l dist
+      - name: Check persistent build (twine)
+        if: ${{ !endsWith(matrix.python-version, 't') }}
+        run: |
           twine check dist/*
       - name: Upload persistent wheel (macOS x86_64)
         if: >
@@ -288,6 +301,16 @@ jobs:
         include:
           - python-version: "3.14t"
             os: ubuntu-latest
+          - python-version: "3.14t"
+            os: macos-latest
+          - python-version: "3.14t"
+            os: windows-latest
+          - python-version: "3.15t"
+            os: ubuntu-latest
+          - python-version: "3.15t"
+            os: macos-latest
+          - python-version: "3.15t"
+            os: windows-latest
 
     steps:
       - name: checkout
@@ -345,7 +368,7 @@ jobs:
           name: persistent-${{ runner.os }}-${{ matrix.python-version }}-${{ runner.arch }}.whl
           path: dist/
       - name: Install persistent ${{ matrix.python-version }}
-        if: matrix.python-version == '3.15'
+        if: startsWith(matrix.python-version, '3.15')
         run: |
           pip install -U wheel "setuptools >= 78.1.1,< 82"
           # coverage might have a wheel on PyPI for a future python version which is
@@ -360,7 +383,7 @@ jobs:
           # Python release may only be available as pre-releases
           pip install --pre -e .[test]
       - name: Install persistent
-        if: matrix.python-version != '3.15'
+        if: ${{ !startsWith(matrix.python-version, '3.15') }}
         run: |
           pip install -U wheel "setuptools >= 78.1.1,< 82"
           pip install -U coverage[toml]
diff --git a/.manylinux-install.sh b/.manylinux-install.sh
index a2260ca..507f24f 100755
--- a/.manylinux-install.sh
+++ b/.manylinux-install.sh
@@ -32,7 +32,9 @@ tox_env_map() {
         *"cp311"*) echo 'py311';;
         *"cp312"*) echo 'py312';;
         *"cp313"*) echo 'py313';;
+        *"cp314t"*) echo 'py314t';;
         *"cp314"*) echo 'py314';;
+        *"cp315t"*) echo 'py315t';;
         *"cp315"*) echo 'py315';;
         *) echo 'py';;
     esac
@@ -46,8 +48,10 @@ for PYBIN in /opt/python/*/bin; do
        [[ "${PYBIN}" == *"cp312/"* ]] || \
        [[ "${PYBIN}" == *"cp313/"* ]] || \
        [[ "${PYBIN}" == *"cp314/"* ]] || \
-       [[ "${PYBIN}" == *"cp315/"* ]] ; then
-        if [[ "${PYBIN}" == *"cp315/"* ]] ; then
+       [[ "${PYBIN}" == *"cp314t/"* ]] || \
+       [[ "${PYBIN}" == *"cp315/"* ]] || \
+       [[ "${PYBIN}" == *"cp315t/"* ]] ; then
+        if [[ "${PYBIN}" == *"cp315/"* ]] || [[ "${PYBIN}" == *"cp315t/"* ]] ; then
             "${PYBIN}/pip" install --pre -e /io/
             "${PYBIN}/pip" wheel /io/ --pre -w wheelhouse/
         else
diff --git a/.meta.toml b/.meta.toml
index 8abcba3..931c5f3 100644
--- a/.meta.toml
+++ b/.meta.toml
@@ -2,7 +2,7 @@
 # https://github.com/zopefoundation/meta/tree/master/src/zope/meta/c-code
 [meta]
 template = "c-code"
-commit-id = "51f0db4e"
+commit-id = "21b3fb2e"
 
 [python]
 with-windows = true
diff --git a/pyproject.toml b/pyproject.toml
index c7da72c..0e40b5c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -99,6 +99,7 @@ source = [
 readme = {file = ["README.rst", "CHANGES.rst"]}
 
 
+
 [tool.zest-releaser]
 create-wheel = false
 upload-pypi = false
diff --git a/tox.ini b/tox.ini
index 7f8ccb6..4d1b708 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,6 +12,7 @@ envlist =
     py314,py314-pure
     py315,py315-pure
     py314t,py314t-pure
+    py315t,py315t-pure
     pypy3
     docs
     coverage
@@ -20,7 +21,6 @@ envlist =
 pip_pre = py315: true
 deps =
     setuptools >= 78.1.1,< 82
-    Sphinx
 setenv =
     pure: PURE_PYTHON=1
     !pure-!pypy3: PURE_PYTHON=0