ci: pin runner images to ubuntu-24.04, macos-26, windows-2025

.github/workflows/check-docs.yml

@@ -63,7 +63,7 @@ env:
 
 jobs:
   make-docs:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     env: ${{ fromJSON(inputs.env-vars) }}
     strategy:
       fail-fast: false

.github/workflows/check-package.yml

@@ -36,7 +36,7 @@ on:
         type: string
         default: |
           {
-            "os": ["ubuntu-latest"],
+            "os": ["ubuntu-24.04"],
             "python-version": ["3.10"]
           }
       testing-matrix:
@@ -47,7 +47,7 @@ on:
         # https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners#supported-runners-and-hardware-resources
         default: |
           {
-            "os": ["ubuntu-22.04", "macos-latest", "windows-2022"],
+            "os": ["ubuntu-24.04", "macos-26", "windows-2025"],
             "python-version": ["3.10", "3.13"]
           }
       env-vars:

.github/workflows/check-precommit.yml

@@ -33,7 +33,7 @@ env:
 
 jobs:
   pre-commit:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
       - name: Checkout 🛎️
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0

.github/workflows/ci-cli.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ["ubuntu-latest", "macos-latest", "windows-latest"]
+        os: ["ubuntu-24.04", "macos-26", "windows-2025"]
         python-version: ["3.10"]
     timeout-minutes: 10
     steps:

.github/workflows/ci-scripts.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ["ubuntu-latest", "macos-latest", "windows-latest"]
+        os: ["ubuntu-24.04", "macos-26", "windows-2025"]
         python-version: ["3.10"]
     timeout-minutes: 15
     steps:
@@ -48,7 +48,7 @@ jobs:
         run: uv cache prune --ci
 
   standalone-run:
-    runs-on: "ubuntu-22.04"
+    runs-on: ubuntu-24.04
     timeout-minutes: 20
     env:
       TORCH_URL: "https://download.pytorch.org/whl/cpu/torch_stable.html"

.github/workflows/ci-testing.yml

@@ -16,7 +16,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ["ubuntu-22.04", "macos-latest", "windows-2022"]
+        # Runner images: https://github.com/actions/runner-images
+        os: ["ubuntu-24.04", "macos-26", "windows-2025"]
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
         requires: ["oldest", "latest"]
         exclude:

.github/workflows/ci-use-checks.yaml

@@ -49,12 +49,12 @@ jobs:
       import-name: "lightning_utilities"
       build-matrix: |
         {
-          "os": ["ubuntu-22.04"],
+          "os": ["ubuntu-24.04"],
           "python-version": ["3.10"]
         }
       testing-matrix: |
         {
-          "os": ["ubuntu-22.04", "macos-14", "windows-2022"],
+          "os": ["ubuntu-24.04", "macos-26", "windows-2025"],
           "python-version": ["3.10", "3.13"]
         }
 
@@ -70,12 +70,12 @@ jobs:
       custom-import-code: "import jsonargparse"
       build-matrix: |
         {
-          "os": ["ubuntu-latest", "macos-latest"],
+          "os": ["ubuntu-24.04", "macos-26"],
           "python-version": ["3.10"]
         }
       testing-matrix: |
         {
-          "os": ["ubuntu-latest", "macos-latest", "windows-latest"],
+          "os": ["ubuntu-24.04", "macos-26", "windows-2025"],
           "python-version": ["3.10"]
         }
 

.github/workflows/release-pypi.yml

@@ -21,7 +21,7 @@ env:
 jobs:
   # based on https://github.com/pypa/gh-action-pypi-publish
   build-package:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     timeout-minutes: 10
     steps:
       - name: Checkout 🛎️