diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 76e8e84..36c2af4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,92 +21,53 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        include:
-          # Linux
-          - tox_env: "py39-coverage"
-            python: "3.9"
-            os: ubuntu-20.04
-          - tox_env: "py38-coverage"
-            python: "3.8"
-            os: ubuntu-20.04
-          - tox_env: "py37-coverage"
-            python: "3.7"
-            os: ubuntu-20.04
-          - tox_env: "py36-coverage"
-            python: "3.6"
-            os: ubuntu-20.04
-          - tox_env: "py35-coverage"
-            python: "3.5"
-            os: ubuntu-20.04
-
-          - tox_env: "py27-coverage"
-            python: "2.7"
-            os: ubuntu-20.04
-
-          - tox_env: "pypy3-coverage"
-            python: "pypy-3.7"
-            os: ubuntu-20.04
-          - tox_env: "pypy-coverage"
-            python: "pypy-2.7"
-            os: ubuntu-20.04
+        os: [ubuntu-latest]
+        python: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}
 
-      # Caching.
+      - name: Set tox_env
+        run: |
+          pyv=$(echo ${{matrix.python}} | sed 's/\.//')
+          tox_env=py${pyv}-coverage
+          echo "tox env name: ${tox_env}"
+          echo "tox_env=${tox_env}">> $GITHUB_ENV
+
       - name: set PY_CACHE_KEY
         run: echo "PY_CACHE_KEY=$(python -c 'import hashlib, sys;print(hashlib.sha256(sys.version.encode()+sys.executable.encode()).hexdigest())')" >> $GITHUB_ENV
       - name: Cache .tox
-        uses: actions/cache@v1
+        uses: actions/cache@v3
         with:
-          path: ${{ github.workspace }}/.tox/${{ matrix.tox_env }}
-          key: "tox|${{ matrix.os }}|${{ matrix.tox_env }}|${{ env.PY_CACHE_KEY }}|${{ hashFiles('tox.ini', 'setup.*') }}"
+          path: ${{ github.workspace }}/.tox/${{ env.tox_env }}
+          key: "tox|${{ matrix.os }}|${{ env.tox_env }}|${{ env.PY_CACHE_KEY }}|${{ hashFiles('tox.ini', 'setup.*') }}"
 
-      - name: (Initial) version information/pinning
+      - name: Install/update tools
         run: |
-          set -x
-          python -m site
-          python -m pip --version
-          python -m pip list
-          if [[ "${{ matrix.python }}" == "3.4" ]]; then
-            # Install latest available pip.
-            # 7.1.2 (installed) is too old to not install too new packages,
-            # including pip itself.  19.2 dropped support for Python 3.4.
-            python -m pip install -U pip==19.1.1
-          fi
-          python -m pip install -U setuptools==42.0.2
-          python -m pip install -U virtualenv==20.4.3
-
-      - name: Install tox
-        run: python -m pip install git+https://github.com/blueyed/tox@master
-
-      - name: Version information
-        run: python -m pip list
+          pip install -U pip setuptools virtualenv tox
 
       - name: Setup tox environment
         id: setup-tox
-        run: python -m tox --notest -v --durations -e ${{ matrix.tox_env }}
+        run: tox --notest -v -e ${{ env.tox_env }}
 
       - name: Test
         env:
-          COLUMNS: "90"  # better alignment (working around https://github.com/blueyed/pytest/issues/491).
+          COLUMNS: "90" # better alignment (working around https://github.com/blueyed/pytest/issues/491).
           PY_COLORS: "1"
           # UTF-8 mode for Windows (https://docs.python.org/3/using/windows.html#utf-8-mode).
           PYTHONUTF8: "1"
           TOX_TESTENV_PASSENV: "PYTHONUTF8"
-        run: python -m tox -v --durations -e ${{ matrix.tox_env }}
+        run: tox -v -e ${{ env.tox_env }}
 
       - name: Report coverage
-        if: always() && (steps.setup-tox.outcome == 'success' && contains(matrix.tox_env, '-coverage'))
-        uses: codecov/codecov-action@v1
+        if: always() && (steps.setup-tox.outcome == 'success' && contains(env.tox_env, '-coverage'))
+        uses: codecov/codecov-action@v3
         with:
           files: ./coverage.xml
           flags: ${{ runner.os }}
-          name: ${{ matrix.tox_env }}
+          name: ${{ env.tox_env }}
           fail_ci_if_error: true
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..0894441
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,28 @@
+name: Publish package to PyPI
+
+on:
+  release:
+    types:
+      - published
+  workflow_dispatch:
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.9"
+      - name: Install requirements
+        run: |
+          pip install -U pip twine build
+      - name: Build
+        run: python -m build
+      - run: check-manifest
+      - run: twine check dist/*
+      - name: Publish to PyPI
+        env:
+          TWINE_USERNAME: "__token__"
+          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
+        run: twine upload dist/*
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 7ba9ffc..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-dist: xenial
-language: python
-
-env:
-  global:
-    - PYTEST_ADDOPTS="-vv"
-
-jobs:
-  include:
-    - python: '3.4'
-      env:
-        - TOXENV=py34-coverage
-        - PYTEST="pytest @ git+https://github.com/blueyed/pytest@my-4.6-maintenance"
-
-install:
-  - pip install tox
-
-script:
-  - tox --force-dep="$PYTEST"
-
-after_script:
-  - |
-    if [[ "${TOXENV%-coverage}" != "$TOXENV" ]]; then
-      bash <(curl -s https://codecov.io/bash) -Z -X gcov -X coveragepy -X search -X xcode -X gcovout -X fix -f coverage.xml -n $TOXENV
-    fi
-
-# Only master and releases.  PRs are used otherwise.
-branches:
-  only:
-    - master
-    - /^\d+\.\d+(\.\d+)?(-\S*)?$/