Update Ruby and RubyGems versions to 4.0.1 and 4.0.3

.devcontainer/Dockerfile

@@ -1,5 +1,5 @@
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version
-ARG RUBY_VERSION=3.4.4
+ARG RUBY_VERSION=4.0.1
 FROM ghcr.io/rails/devcontainer/images/ruby:$RUBY_VERSION
 
 # Ensure binding is always 0.0.0.0

.github/actions/setup-rubygems.org/action.yml

@@ -23,7 +23,7 @@ runs:
       if: github.secret_source != 'None' && inputs.install-avo-pro == 'true'
       run: |
         printf "BUNDLE_WITH=avo\nRAILS_GROUPS=avo\n" >> $GITHUB_ENV
-    - uses: ruby/setup-ruby@13e7a03dc3ac6c3798f4570bfead2aed4d96abfb # v1.244.0
+    - uses: ruby/setup-ruby@80740b3b13bf9857e28854481ca95a84e78a2bdf # v1.284.0
       with:
         ruby-version: ${{ inputs.ruby-version }}
         bundler-cache: true

.github/workflows/docker.yml

@@ -13,8 +13,8 @@ jobs:
     name: Docker build (and optional push)
     runs-on: ubuntu-24.04
     env:
-      RUBYGEMS_VERSION: "3.6.9"
-      RUBY_VERSION: "3.4.4"
+      RUBYGEMS_VERSION: "4.0.3"
+      RUBY_VERSION: "4.0.1"
     permissions:
       id-token: write
     steps:

.github/workflows/test.yml

@@ -26,18 +26,18 @@ jobs:
       matrix:
         rubygems:
           - name: locked
-            version: "3.6.9"
+            version: "4.0.3"
           - name: latest
             version: latest
-        ruby_version: ["3.4.4"]
+        ruby_version: ["4.0.1"]
         tests:
           - name: general
             command: test
           - name: system
             command: test:system
         include:
           - rubygems: { name: latest, version: latest }
-            ruby_version: "3.4.4"
+            ruby_version: "4.0.1"
             tests: { name: "avo without pro", command: "test test/*/avo" }
     name: Rails tests ${{ matrix.tests.name }} (RubyGems ${{ matrix.rubygems.name }}, Ruby ${{ matrix.ruby_version }})
     runs-on: ubuntu-22.04

.rubocop.yml

@@ -14,7 +14,7 @@ AllCops:
   DisplayCopNames: true
   DisplayStyleGuide: true
   ParserEngine: parser_prism
-  TargetRubyVersion: 3.4
+  TargetRubyVersion: 4.0
   NewCops: enable
 
 Rails:

.ruby-version

@@ -1 +1 @@
-3.4.4
+4.0.1

CONTRIBUTING.md

@@ -114,7 +114,7 @@ Follow the instructions below on how to install Bundler and setup the database.
 
 ### Installing ruby, gem dependencies, and setting up the database
 
-* Use Ruby 3.4.x
+* Use Ruby 4.0.x
   * See: [Ruby install instructions](https://www.ruby-lang.org/en/downloads/).
   * `.ruby-version` is present and can be used.
 * Use Rubygems 3.6.x

Dockerfile

@@ -1,8 +1,8 @@
 # syntax = docker/dockerfile:1.10
 
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
-ARG RUBY_VERSION=3.4.4
-ARG ALPINE_VERSION=3.20
+ARG RUBY_VERSION=4.0.1
+ARG ALPINE_VERSION=3.23
 FROM ruby:$RUBY_VERSION-alpine${ALPINE_VERSION} AS base
 
 # Install packages

Gemfile.lock

@@ -280,7 +280,7 @@ GEM
       faraday-net_http (>= 2.0, < 3.5)
       json
       logger
-    faraday-follow_redirects (0.3.0)
+    faraday-follow_redirects (0.5.0)
       faraday (>= 1, < 3)
     faraday-multipart (1.2.0)
       multipart-post (~> 2.0)
@@ -1138,7 +1138,7 @@ CHECKSUMS
   factory_bot (6.5.5) sha256=ce59295daee1b4704dab8a2fee6816f513d467c6aa3bc587860767d74a66efbe
   factory_bot_rails (6.5.1) sha256=d3cc4851eae4dea8a665ec4a4516895045e710554d2b5ac9e68b94d351bc6d68
   faraday (2.14.1) sha256=a43cceedc1e39d188f4d2cdd360a8aaa6a11da0c407052e426ba8d3fb42ef61c
-  faraday-follow_redirects (0.3.0) sha256=d92d975635e2c7fe525dd494fcd4b9bb7f0a4a0ec0d5f4c15c729530fdb807f9
+  faraday-follow_redirects (0.5.0) sha256=5cde93c894b30943a5d2b93c2fe9284216a6b756f7af406a1e55f211d97d10ad
   faraday-multipart (1.2.0) sha256=7d89a949693714176f612323ca13746a2ded204031a6ba528adee788694ef757
   faraday-net_http (3.4.2) sha256=f147758260d3526939bf57ecf911682f94926a3666502e24c69992765875906c
   faraday-restrict-ip-addresses (0.3.0) sha256=2db7f6da6f59fa73a9d4ffe96b2b46a4b2b2c4d177e44a1962c1921d32ec7279
@@ -1400,7 +1400,7 @@ CHECKSUMS
   zlib (3.2.2) sha256=908e61263f99c1371b5422581e2d6663bd37c6b04ae13b5f8cb10b0d09379f40
 
 RUBY VERSION
-   ruby 3.4.4p34
+   ruby 4.0.1p0
 
 BUNDLED WITH
    2.6.9