Update to Ruby 4.0.0

.circleci/config.yml

@@ -4,7 +4,7 @@ executors:
     parameters:
       version:
         description: "Ruby version number"
-        default: "3.4.1"
+        default: "4.0.0"
         type: string
     docker:
       - image: cimg/ruby:<< parameters.version >>
@@ -15,7 +15,7 @@ commands:
     parameters:
       version:
         description: "Ruby version number"
-        default: "3.4.1"
+        default: "4.0.0"
         type: string
     steps:
       - restore_cache:
@@ -24,9 +24,8 @@ commands:
       - run:
           name: Install Ruby Dependencies
           command: |
-            gem install bundler -v 2.6.2 --conservative --no-document
             bundle config --local path vendor/bundle
-            bundle check || (bundle install --jobs=4 --retry=3 && bundle clean)
+            bundle check || (bundle install --jobs=8 --retry=3 && bundle clean)
       - save_cache:
           paths:
             - ./vendor/bundle
@@ -44,7 +43,7 @@ jobs:
     parameters:
       version:
         description: "Ruby version number"
-        default: "3.4.1"
+        default: "4.0.0"
         type: string
     executor:
       name: ruby
@@ -65,14 +64,14 @@ workflows:
       - test:
           matrix:
             parameters:
-              version: ["3.2.6", "3.3.6", "3.4.1"]
+              version: ["3.2.9", "3.3.10", "3.4.8", "4.0.0"]
   cron-workflow:
     jobs:
       - rubocop
       - test:
           matrix:
             parameters:
-              version: ["3.2.6", "3.3.6", "3.4.1"]
+              version: ["3.2.9", "3.3.10", "3.4.8", "4.0.0"]
     triggers:
       - schedule:
           cron: "0 13 * * 6"

.ruby-version

@@ -1 +1 @@
-3.4.1
+4.0.0

Gemfile.lock

@@ -70,6 +70,7 @@ PLATFORMS
   arm64-darwin-22
   arm64-darwin-23
   arm64-darwin-24
+  arm64-darwin-25
   x86_64-linux
 
 DEPENDENCIES
@@ -86,4 +87,4 @@ DEPENDENCIES
   wordexp!
 
 BUNDLED WITH
-   2.6.2
+   4.0.3