diff --git a/.github/actions/setup-php-composer/action.yml b/.github/actions/setup-php-composer/action.yml
new file mode 100644
index 0000000..39cf403
--- /dev/null
+++ b/.github/actions/setup-php-composer/action.yml
@@ -0,0 +1,53 @@
+name: 'Setup PHP and Composer'
+description: 'Setup PHP and install Composer dependencies with caching'
+
+inputs:
+  php-version:
+    description: 'PHP version to use'
+    required: false
+    default: '8.3'
+  coverage:
+    description: 'Coverage driver to use (none, xdebug, pcov)'
+    required: false
+    default: 'none'
+  stability:
+    description: 'Composer stability preference (prefer-stable, prefer-lowest)'
+    required: false
+    default: 'prefer-stable'
+  extensions:
+    description: 'PHP extensions to install'
+    required: false
+    default: 'dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, bcmath, soap, intl, gd, exif, iconv, imagick, fileinfo'
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Setup PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ inputs.php-version }}
+        coverage: ${{ inputs.coverage }}
+        extensions: ${{ inputs.extensions }}
+
+    - name: Get Composer Cache Directory
+      id: composer-cache
+      shell: bash
+      run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+    - name: Cache Composer dependencies
+      uses: actions/cache@v5
+      with:
+        path: ${{ steps.composer-cache.outputs.dir }}
+        key: ${{ runner.os }}-composer-${{ inputs.stability }}-${{ hashFiles('**/composer.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-composer-${{ inputs.stability }}-
+
+    - name: Install dependencies
+      shell: bash
+      run: |
+        if [ "${{ inputs.stability }}" = "prefer-lowest" ]; then
+          composer update --prefer-lowest --prefer-dist --no-interaction --no-progress
+        else
+          composer install --prefer-dist --no-interaction --no-progress
+        fi
+
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 45efac9..852b924 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -7,7 +7,7 @@ updates:
     labels:
       - "dependencies"
       - "composer"
-    versioning-strategy: "widen"
+    versioning-strategy: "increase-if-necessary"
     open-pull-requests-limit: 5
 
   - package-ecosystem: "github-actions"
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 6771a8a..642816d 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -26,21 +26,18 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v6
 
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
+      - name: Setup PHP and Composer
+        uses: ./.github/actions/setup-php-composer
         with:
           php-version: ${{ matrix.php }}
-          extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, bcmath, soap, intl, gd, exif, iconv, imagick, fileinfo
           coverage: pcov
+          stability: ${{ matrix.stability }}
 
       - name: Setup problem matchers
         run: |
           echo "::add-matcher::${{ runner.tool_cache }}/php.json"
           echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
 
-      - name: Install dependencies
-        run: composer update --${{ matrix.stability }} --prefer-dist --no-interaction
-
       - name: Execute tests with mutation
         if: ${{ matrix.os == 'ubuntu-latest' }}
         run: vendor/bin/pest --colors=always --mutate --parallel --min=80
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 33657b1..0038fba 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -18,26 +18,8 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v6
 
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: 8.3
-          extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, bcmath, soap, intl, gd, exif, iconv, imagick, fileinfo
-
-      - name: Get Composer Cache Directory
-        id: composer-cache
-        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
-
-      - name: Cache Composer dependencies
-        uses: actions/cache@v5
-        with:
-          path: ${{ steps.composer-cache.outputs.dir }}
-          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-composer-
-
-      - name: Install dependencies
-        run: composer install --prefer-dist --no-interaction --no-progress
+      - name: Setup PHP and Composer
+        uses: ./.github/actions/setup-php-composer
 
       - name: Cache phpstan results
         uses: actions/cache@v5
@@ -56,26 +38,36 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v6
 
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: 8.3
-          extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, bcmath, soap, intl, gd, exif, iconv, imagick, fileinfo
+      - name: Setup PHP and Composer
+        uses: ./.github/actions/setup-php-composer
 
-      - name: Get Composer Cache Directory
-        id: composer-cache
-        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+      - name: Check type coverage
+        run: vendor/bin/pest --type-coverage --min=100
 
-      - name: Cache Composer dependencies
+  format:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Setup PHP and Composer
+        uses: ./.github/actions/setup-php-composer
+
+      - name: Cache rector results
         uses: actions/cache@v5
         with:
-          path: ${{ steps.composer-cache.outputs.dir }}
-          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          path: /tmp/rector
+          key: "rector-cache-${{ github.run_id }}" # always write a new cache
           restore-keys: |
-            ${{ runner.os }}-composer-
+            rector-cache-
 
-      - name: Install dependencies
-        run: composer install --prefer-dist --no-interaction --no-progress
+      - name: Cache ecs results
+        uses: actions/cache@v5
+        with:
+          path: /tmp/ecs
+          key: "ecs-cache-${{ github.run_id }}" # always write a new cache
+          restore-keys: |
+            ecs-cache-
 
-      - name: Check type coverage
-        run: vendor/bin/pest --type-coverage --min=100
+      - name: Run format checks
+        run: composer format --no-progress-bar
diff --git a/README.md b/README.md
index be7685f..a4b7984 100644
--- a/README.md
+++ b/README.md
@@ -24,9 +24,9 @@ This package supports multiple JSON Schema specification versions with automatic
 
 ### Supported Versions
 
-- **Draft-07** (2018) - Default version for maximum compatibility
+- **Draft 2020-12** - (Default) Latest version with `prefixItems`, dynamic references, and format vocabularies
 - **Draft 2019-09** - Adds advanced features like `$defs`, `unevaluatedProperties`, `deprecated`
-- **Draft 2020-12** - Latest version with `prefixItems`, dynamic references, and format vocabularies
+- **Draft-07** (2018) - Legacy version for maximum compatibility
 
 ## Requirements