Modernize actions

.github/workflows/ci.yml

@@ -8,47 +8,53 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     env:
       MIX_ENV: test
+      GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
     strategy:
       fail-fast: false
       matrix:
         include:
-          - pair:
-              elixir: "1.11"
-              otp: "21"
-          - pair:
-              elixir: "1.18"
-              otp: "27"
+          # Minimum supported versions.
+          - elixir: "1.15"
+            otp: "26"
+
+          # Latest versions.
+          - elixir: "1.19"
+            otp: "28"
             lint: lint
     steps:
-      - uses: actions/checkout@v4
+      - name: Check out this repository
+        uses: actions/checkout@v6
 
-      - uses: erlef/setup-beam@v1
+      - name: Set up Erlang and Elixir
+        uses: erlef/setup-beam@v1
         with:
-          otp-version: ${{matrix.pair.otp}}
-          elixir-version: ${{matrix.pair.elixir}}
+          otp-version: ${{matrix.otp}}
+          elixir-version: ${{matrix.elixir}}
 
-      - uses: actions/cache@v4
+      - name: Cache Mix dependencies
+        uses: actions/cache@v5
+        id: cache-deps
         with:
           path: |
             deps
             _build
-          key: ${{ runner.os }}-mix-${{matrix.pair.elixir}}-${{matrix.pair.otp}}-${{ hashFiles('**/mix.lock') }}
+          key: |
+            mix-${{ runner.os }}-${{matrix.elixir}}-${{matrix.otp}}-${{ hashFiles('**/mix.lock') }}
           restore-keys: |
-            ${{ runner.os }}-mix-${{matrix.pair.elixir}}-${{matrix.pair.otp}}-
+            mix-${{ runner.os }}-${{matrix.elixir}}-${{matrix.otp}}-
 
-      - run: mix deps.get
+      - run: mix do deps.get --check-locked, deps.compile
+        if: steps.cache-deps.outputs.cache-hit != 'true'
 
       - run: mix format --check-formatted
         if: ${{ matrix.lint }}
 
       - run: mix deps.unlock --check-unused
         if: ${{ matrix.lint }}
 
-      - run: mix deps.compile
-
       - run: mix compile --warnings-as-errors
         if: ${{ matrix.lint }}
 

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Changed
+- Bump minimum elixir to 1.15
+- Modernize github actions
+
 ## [1.0.0] - 2026-05-26
 
 ### Changed

mix.exs

@@ -9,7 +9,7 @@ defmodule BroadwayCloudPubSub.MixProject do
     [
       app: :broadway_cloud_pub_sub,
       version: @version,
-      elixir: "~> 1.11",
+      elixir: "~> 1.15",
       elixirc_paths: elixirc_paths(Mix.env()),
       name: "BroadwayCloudPubSub",
       description: @description,