diff --git a/.circleci/config.yml b/.circleci/config.yml
index 9b22229bceab..d67aa07dd9e3 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,11 +1,5 @@
 version: 2
 
-common_env: &common_env
-  # CircleCI container has two cores, but Ruby can see 32 cores. So we
-  # configure test-queue.
-  # See https://github.com/tmm1/test-queue#environment-variables
-  TEST_QUEUE_WORKERS: 2
-
 spec_steps: &spec_steps
   - checkout
   - attach_workspace:
@@ -14,8 +8,7 @@ spec_steps: &spec_steps
   - run:
       name: Run specs
       command: |
-        ./tmp/cc-test-reporter before-build
-        COVERAGE=true bundle exec rake spec
+        bundle exec rake spec
         ./tmp/cc-test-reporter format-coverage --output tmp/codeclimate.$CIRCLE_JOB.json
   - persist_to_workspace:
       root: tmp
@@ -23,67 +16,11 @@ spec_steps: &spec_steps
         - codeclimate.*.json
 
 jobs:
-  # Ruby 2.7
-  ruby-2.7-spec:
-    docker:
-      - image: cimg/ruby:2.7
-    environment:
-      <<: *common_env
-    steps:
-      *spec_steps
-
-  # Ruby 3.0
-  ruby-3.0-spec:
-    docker:
-      - image: cimg/ruby:3.0
-    environment:
-      <<: *common_env
-    steps:
-      *spec_steps
-
-  # Ruby 3.1
-  ruby-3.1-spec:
-    docker:
-      - image: cimg/ruby:3.1
-    environment:
-      <<: *common_env
-    steps:
-      *spec_steps
-
-  # Ruby 3.2
-  ruby-3.2-spec:
-    docker:
-      - image: cimg/ruby:3.2
-    environment:
-      <<: *common_env
-    steps:
-      *spec_steps
-
-  # Ruby 3.3
-  ruby-3.3-spec:
-    docker:
-      - image: cimg/ruby:3.3
-    environment:
-      <<: *common_env
-    steps:
-      *spec_steps
-
-  # ruby-head (nightly snapshot build)
-  ruby-head-spec:
-    docker:
-      - image: rubocophq/circleci-ruby-snapshot:latest
-    environment:
-      <<: *common_env
-    steps:
-      *spec_steps
-
   # Job for downloading the Code Climate test reporter
   cc-setup:
     docker:
       # Specify the latest version to prevent "cimg/ruby:latest not found: manifest unknown: manifest unknown" error.
       - image: cimg/ruby:3.3
-    environment:
-      <<: *common_env
     steps:
       - run:
           name: Download Code Climate test-reporter
@@ -103,8 +40,6 @@ jobs:
       - image: cimg/ruby:3.3
         environment:
           CC_TEST_REPORTER_ID: a11b66bfbb1acdf220d5cb317b2e945a986fd85adebe29a76d411ad6d74ec31f
-    environment:
-      <<: *common_env
     steps:
       - attach_workspace:
           at: ~/project/tmp
diff --git a/.github/workflows/linting.yml b/.github/workflows/linting.yml
index f3f2f11d877e..b28cd1a6117c 100644
--- a/.github/workflows/linting.yml
+++ b/.github/workflows/linting.yml
@@ -17,11 +17,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Yamllint
-        uses: karancode/yamllint-github-action@v2.1.1
-        with:
-          yamllint_strict: true
-          yamllint_format: parsable
-          yamllint_comment: true
-        env:
-          GITHUB_ACCESS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      # - name: Yamllint
+      #   uses: karancode/yamllint-github-action@v2.1.1
+      #   with:
+      #     yamllint_strict: true
+      #     yamllint_format: parsable
+      #     yamllint_comment: true
+      #   env:
+      #     GITHUB_ACCESS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/rubocop.yml b/.github/workflows/rubocop.yml
index 278b33451520..c98d44542da9 100644
--- a/.github/workflows/rubocop.yml
+++ b/.github/workflows/rubocop.yml
@@ -15,9 +15,8 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  main:
-    name: >-
-      ${{ matrix.os }} ${{ matrix.ruby }}
+  spec:
+    name: Spec - ${{ matrix.os }} ${{ matrix.ruby }}
     runs-on: ${{ matrix.os }}-latest
     env:
       # See https://github.com/tmm1/test-queue#environment-variables
@@ -25,12 +24,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # [ubuntu, macos, windows]
-        os: [windows]
+        os: [ubuntu]
         ruby: ['2.7', '3.0', '3.1', '3.2', '3.3', 'head']
-        include:
-          - os: windows
-            ruby: mingw
         exclude:
           - os: windows
             ruby: head
@@ -38,143 +33,172 @@ jobs:
     steps:
       - name: checkout
         uses: actions/checkout@v4
-      - name: set up Ruby
+      - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
+      - name: Set up Coverage
+        # Only collect coverage data on ubuntu runners
+        if: matrix.os == 'ubuntu'
+        run: echo "COVERAGE=true" >> $GITHUB_ENV
       - name: spec
         run: bundle exec rake spec
-
-  ascii_spec:
-    name: Ascii Spec - ${{ matrix.os }} ${{ matrix.ruby }}
-    runs-on: ${{ matrix.os }}-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu, windows]
-        ruby: ['2.7', '3.0', '3.1', '3.2', '3.3', 'head']
-        include:
-          - os: ubuntu
-            ruby: jruby-9.4
-          - os: windows
-            ruby: mingw
-        exclude:
-          - os: windows
-            ruby: head
+      - name: Upload Coverage Artifact
+        if: matrix.os == 'ubuntu'
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-${{ matrix.os }}-${{ matrix.ruby }}
+          path: coverage/.resultset.json
+          if-no-files-found: error
+    
+  upload_coverage:
+    name: Upload Coverage
+    needs: spec
+    runs-on: ubuntu-latest
 
     steps:
-      - name: checkout
-        uses: actions/checkout@v4
-      - name: set up Ruby
-        uses: ruby/setup-ruby@v1
+      - uses: actions/download-artifact@v4
+        name: Download Coverage Artifacts
         with:
-          ruby-version: ${{ matrix.ruby }}
-          bundler-cache: true
-      - name: ascii_spec
-        run: bundle exec rake ascii_spec
+          path: ${{github.workspace}}/coverage
+          pattern: coverage-*
+      - uses: paambaati/codeclimate-action@v6
+        env:
+          CC_TEST_REPORTER_ID: 2653195ce32a1bec6714ba738f5e7061c7908e70ffa96e96e102ea2a8d8975b6
+        with:
+          coverageLocations: ${{github.workspace}}/coverage/*:simplecov
+          debug: true
 
-  internal_investigation:
-    name: Internal Investigation - ${{ matrix.os }} ${{ matrix.ruby }}
-    runs-on: ${{ matrix.os }}-latest
+  # ascii_spec:
+  #   name: Ascii Spec - ${{ matrix.os }} ${{ matrix.ruby }}
+  #   runs-on: ${{ matrix.os }}-latest
 
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu, windows]
-        ruby: ['2.7', '3.0', '3.1', '3.2', '3.3', 'head']
-        include:
-          - os: ubuntu
-            ruby: jruby-9.4
-          - os: windows
-            ruby: mingw
-        exclude:
-          - os: windows
-            ruby: head
+  #   strategy:
+  #     fail-fast: false
+  #     matrix:
+  #       os: [ubuntu, windows]
+  #       ruby: ['2.7', '3.0', '3.1', '3.2', '3.3', 'head']
+  #       include:
+  #         - os: ubuntu
+  #           ruby: jruby-9.4
+  #         - os: windows
+  #           ruby: mingw
+  #       exclude:
+  #         - os: windows
+  #           ruby: head
 
-    steps:
-      - name: Windows Specific
-        if: matrix.os == 'windows'
-        run: |
-          # Work around `Layout/EndOfLine: Carriage return character detected`
-          git config --system core.autocrlf false
-      - name: checkout
-        uses: actions/checkout@v4
-      - name: set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: ${{ matrix.ruby }}
-          bundler-cache: true
-      - name: internal_investigation
-        run: bundle exec rake internal_investigation
-      - name: Check requiring libraries successfully
-        # See https://github.com/rubocop/rubocop/pull/4523#issuecomment-309136113
-        run: ruby -I lib -r bundler/setup -r rubocop -e 'exit 0'
-
-  documentation_check:
-    name: Documentation Check
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout
-        uses: actions/checkout@v4
-      - name: Set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: 3.3
-          bundler-cache: true
-      - name: Check documentation syntax
-        run: bundle exec rake documentation_syntax_check
+  #   steps:
+  #     - name: checkout
+  #       uses: actions/checkout@v4
+  #     - name: set up Ruby
+  #       uses: ruby/setup-ruby@v1
+  #       with:
+  #         ruby-version: ${{ matrix.ruby }}
+  #         bundler-cache: true
+  #     - name: ascii_spec
+  #       run: bundle exec rake ascii_spec
 
-  jruby:
-    name: JRuby 9.4
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout
-        uses: actions/checkout@v4
-      - name: set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: jruby-9.4
-          bundler-cache: true
-      - name: spec
-        run: bundle exec rake spec
+  # internal_investigation:
+  #   name: Internal Investigation - ${{ matrix.os }} ${{ matrix.ruby }}
+  #   runs-on: ${{ matrix.os }}-latest
 
-  prism:
-    runs-on: ubuntu-latest
-    name: Prism
-    steps:
-      - uses: actions/checkout@v4
-      - name: set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          # Specify the minimum Ruby version 2.7 required for Prism to run.
-          ruby-version: 2.7
-          bundler-cache: true
-      - name: spec
-        env:
-          PARSER_ENGINE: parser_prism
-        run: bundle exec rake prism_spec
+  #   strategy:
+  #     fail-fast: false
+  #     matrix:
+  #       os: [ubuntu, windows]
+  #       ruby: ['2.7', '3.0', '3.1', '3.2', '3.3', 'head']
+  #       include:
+  #         - os: ubuntu
+  #           ruby: jruby-9.4
+  #         - os: windows
+  #           ruby: mingw
+  #       exclude:
+  #         - os: windows
+  #           ruby: head
 
-  rspec4:
-    runs-on: ubuntu-latest
-    name: RSpec 4
-    steps:
-      - uses: actions/checkout@v4
-      - name: Use latest RSpec 4 from `4-0-dev` branch
-        run: |
-          sed -e "/'rspec', '~> 3/d" -i Gemfile
-          cat << EOF > Gemfile.local
-            gem 'rspec', github: 'rspec/rspec-metagem', branch: '4-0-dev'
-            gem 'rspec-core', github: 'rspec/rspec-core', branch: '4-0-dev'
-            gem 'rspec-expectations', github: 'rspec/rspec-expectations', branch: '4-0-dev'
-            gem 'rspec-mocks', github: 'rspec/rspec-mocks', branch: '4-0-dev'
-            gem 'rspec-support', github: 'rspec/rspec-support', branch: '4-0-dev'
-          EOF
-      - name: set up Ruby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: 2.7
-          bundler-cache: true
-      - name: spec
-        run: bundle exec rake spec
+  #   steps:
+  #     - name: Windows Specific
+  #       if: matrix.os == 'windows'
+  #       run: |
+  #         # Work around `Layout/EndOfLine: Carriage return character detected`
+  #         git config --system core.autocrlf false
+  #     - name: checkout
+  #       uses: actions/checkout@v4
+  #     - name: set up Ruby
+  #       uses: ruby/setup-ruby@v1
+  #       with:
+  #         ruby-version: ${{ matrix.ruby }}
+  #         bundler-cache: true
+  #     - name: internal_investigation
+  #       run: bundle exec rake internal_investigation
+  #     - name: Check requiring libraries successfully
+  #       # See https://github.com/rubocop/rubocop/pull/4523#issuecomment-309136113
+  #       run: ruby -I lib -r bundler/setup -r rubocop -e 'exit 0'
+
+  # documentation_check:
+  #   name: Documentation Check
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #     - name: checkout
+  #       uses: actions/checkout@v4
+  #     - name: Set up Ruby
+  #       uses: ruby/setup-ruby@v1
+  #       with:
+  #         ruby-version: 3.3
+  #         bundler-cache: true
+  #     - name: Check documentation syntax
+  #       run: bundle exec rake documentation_syntax_check
+
+  # jruby:
+  #   name: JRuby 9.4
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #     - name: checkout
+  #       uses: actions/checkout@v4
+  #     - name: set up Ruby
+  #       uses: ruby/setup-ruby@v1
+  #       with:
+  #         ruby-version: jruby-9.4
+  #         bundler-cache: true
+  #     - name: spec
+  #       run: bundle exec rake spec
+
+  # prism:
+  #   runs-on: ubuntu-latest
+  #   name: Prism
+  #   steps:
+  #     - uses: actions/checkout@v4
+  #     - name: set up Ruby
+  #       uses: ruby/setup-ruby@v1
+  #       with:
+  #         # Specify the minimum Ruby version 2.7 required for Prism to run.
+  #         ruby-version: 2.7
+  #         bundler-cache: true
+  #     - name: spec
+  #       env:
+  #         PARSER_ENGINE: parser_prism
+  #       run: bundle exec rake prism_spec
+
+  # rspec4:
+  #   runs-on: ubuntu-latest
+  #   name: RSpec 4
+  #   steps:
+  #     - uses: actions/checkout@v4
+  #     - name: Use latest RSpec 4 from `4-0-dev` branch
+  #       run: |
+  #         sed -e "/'rspec', '~> 3/d" -i Gemfile
+  #         cat << EOF > Gemfile.local
+  #           gem 'rspec', github: 'rspec/rspec-metagem', branch: '4-0-dev'
+  #           gem 'rspec-core', github: 'rspec/rspec-core', branch: '4-0-dev'
+  #           gem 'rspec-expectations', github: 'rspec/rspec-expectations', branch: '4-0-dev'
+  #           gem 'rspec-mocks', github: 'rspec/rspec-mocks', branch: '4-0-dev'
+  #           gem 'rspec-support', github: 'rspec/rspec-support', branch: '4-0-dev'
+  #         EOF
+  #     - name: set up Ruby
+  #       uses: ruby/setup-ruby@v1
+  #       with:
+  #         ruby-version: 2.7
+  #         bundler-cache: true
+  #     - name: spec
+  #       run: bundle exec rake spec