Merge 75e8752022 into 638ed79f9d

Add note on runner versions

README.md

@@ -19,16 +19,19 @@ See ["Caching dependencies to speed up workflows"](https://docs.github.com/en/ac
 
 The cache backend service has been rewritten from the ground up for improved performance and reliability. [actions/cache](https://github.com/actions/cache) now integrates with the new cache service (v2) APIs.
 
-The new service will gradually roll out as of **February 1st, 2025**. The legacy service will also be sunset on the same date. Changes in these release are **fully backward compatible**.
+The new service will gradually roll out as of **February 1st, 2025**. The legacy service will also be sunset on the same date. Changes in these releases are **fully backward compatible**.
 
 **We are deprecating some versions of this action**. We recommend upgrading to version `v4` or `v3` as soon as possible before **February 1st, 2025.** (Upgrade instructions below).
 
-If you are using pinned SHAs, please use the SHAs of versions `v4.2.0` or `v3.4.0`
+If you are using pinned SHAs, please use the SHAs of versions `v4.2.0` or `v3.4.0`.
 
 If you do not upgrade, all workflow runs using any of the deprecated [actions/cache](https://github.com/actions/cache) will fail.
 
 Upgrading to the recommended versions will not break your workflows.
 
+> **Additionally, if you are managing your own GitHub runners, you must update your runner version to `2.231.0` or newer to ensure compatibility with the new cache service.**  
+> Failure to update both the action version and your runner version may result in workflow failures after the migration date.
+
 Read more about the change & access the migration guide: [reference to the announcement](https://github.com/actions/cache/discussions/1510).
 
 ### v4

examples.md

@@ -621,6 +621,75 @@ whenever possible:
     key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
 ```
 
+### Multiple OS with a build matrix
+
+```yml
+name: CI
+on: [push, pull_request]
+
+jobs:
+  tests:
+    name: Test ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        include:
+          - os: ubuntu-latest
+            SEP: /
+            PIP_WHEELS_DIR: ~/.cache/pip
+            CARGO_INDEX_DIR: ~/.cargo/git
+            CARGO_REGISTRY_DIR: ~/.cargo/registry
+
+          - os: macos-latest
+            SEP: /
+            PIP_WHEELS_DIR: ~/Library/Caches/pip
+            CARGO_INDEX_DIR: ~/.cargo/git
+            CARGO_REGISTRY_DIR: ~/.cargo/registry
+
+          - os: windows-latest
+            SEP: \
+            PIP_WHEELS_DIR: ~\AppData\Local\pip\Cache
+            CARGO_INDEX_DIR: C:\Rust\.cargo\git
+            CARGO_REGISTRY_DIR: C:\Rust\.cargo\registry
+
+      # Keep running all matrices if something fail
+      fail-fast: false
+
+    steps:
+      - name: Cache pip wheels
+        uses: actions/cache@v1
+        with:
+          path: ${{ matrix.PIP_WHEELS_DIR }}
+          key: ${{ runner.os }}-pip-wheels-${{ hashFiles('**/requirements.txt') }}-${{ hashFiles('**/setup.py') }}-14-
+
+      - name: Cache cargo index
+        uses: actions/cache@v1
+        with:
+          path: ${{ matrix.CARGO_INDEX_DIR }}
+          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.toml') }}-14-
+
+      - name: Cache cargo registry
+        uses: actions/cache@v1
+        with:
+          path: ${{ matrix.CARGO_REGISTRY_DIR }}
+          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.toml') }}-14-
+
+      - name: Cache cargo target
+        uses: actions/cache@v1
+        with:
+          path: ${{ github.workspace }}${{ matrix.SEP }}target
+          key: ${{ runner.os }}-cargo-target-${{ hashFiles('**/Cargo.toml') }}-14-
+
+      - name: Run on Windows
+        if: matrix.os == 'windows-latest'
+        run: echo Windows
+
+      - name: Run on Linux
+        if: matrix.os == 'ubuntu-latest'
+        run: echo Linux
+```
+
 ## Scala - SBT
 
 ```yaml