diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a925e82..eba1b15 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,6 @@
 name: CI
 
-on: [push, pull_request]
+on: [push, pull_request, workflow_dispatch]
 
 jobs:
   Windows:
@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
+        python: ['3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
 
     steps:
       - name: Checkout
@@ -35,7 +35,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
+        python: ['3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
         check_formatting: ['0']
         extra_name: ['']
         include:
@@ -47,16 +47,11 @@ jobs:
         uses: actions/checkout@v6
       - name: Setup Python
         uses: actions/setup-python@v6
-        if: "!endsWith(matrix.python, '-dev')"
         with:
           python-version: ${{ matrix.python }}
+          allow-prereleases: true
           cache: pip
           cache-dependency-path: test-requirements.txt
-      - name: Setup Python (dev)
-        uses: deadsnakes/action@v3.0.1
-        if: endsWith(matrix.python, '-dev')
-        with:
-          python-version: '${{ matrix.python }}'
       - name: Run tests
         run: ./ci.sh
         env:
@@ -71,7 +66,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
+        python: ['3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
     steps:
       - name: Checkout
         uses: actions/checkout@v6
@@ -82,8 +77,25 @@ jobs:
           allow-prereleases: true
           cache: pip
           cache-dependency-path: test-requirements.txt
+      - name: Set PYTHON_GIL
+        if: endsWith(matrix.python-version, 't')
+        run: |
+          echo "PYTHON_GIL=0" >> "$GITHUB_ENV"
       - name: Run tests
         run: ./ci.sh
         env:
           # Should match 'name:' up above
           JOB_NAME: 'macOS (${{ matrix.python }})'
+
+  alls-green:
+    if: always()
+    needs:
+      - Windows
+      - Ubuntu
+      - macOS
+    runs-on: ubuntu-latest
+    steps:
+      - name: Decide whether all jobs succeeded or not
+        uses: re-actors/alls-green@release/v1
+        with:
+          jobs: ${{ toJSON(needs) }}
diff --git a/pyproject.toml b/pyproject.toml
index beaa378..a054095 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ classifiers = [
     "Intended Audience :: Developers",
     "Development Status :: 5 - Production/Stable",
 ]
-requires-python = ">= 3.7"
+requires-python = ">= 3.10"
 dynamic = ["version"]
 
 [project.urls]