diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 52824b5..bab6987 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,14 +17,14 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ["7.4", "8.0", "8.1", "8.2"]
+        php-versions: ["8.0", "8.1", "8.2", "8.3"]
         host-os: ["ubuntu-latest", "windows-latest"]
         experimental: [false]
 
     name: PHP ${{ matrix.php-versions }} - OS ${{ matrix.host-os }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -40,7 +40,7 @@ jobs:
         if: ${{ startsWith( matrix.host-os , 'ubuntu') }}
 
       - name: Cache dependencies (Ubuntu)
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.composercache-ubuntu.outputs.dir }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
@@ -55,7 +55,7 @@ jobs:
         if: ${{ startsWith( matrix.host-os , 'windows') }}
 
       - name: Cache dependencies (Windows)
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ${{ steps.composercache-windows.outputs.dir }}
           key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
@@ -73,7 +73,7 @@ jobs:
         run: composer phpunit
 
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v4
         with:
           file: ./clover.xml
           fail_ci_if_error: true
diff --git a/.github/workflows/v5.yml b/.github/workflows/v5.yml
deleted file mode 100644
index e14bbc6..0000000
--- a/.github/workflows/v5.yml
+++ /dev/null
@@ -1,80 +0,0 @@
-name: Build version 5 development
-
-on:
-  pull_request:
-    branches:
-      - "v5"
-  push:
-    branches:
-      - "v5"
-      - "feature/v5/*"
-  workflow_dispatch:
-
-jobs:
-  build:
-    runs-on: ${{ matrix.host-os }}
-    continue-on-error: ${{ matrix.experimental }}
-    strategy:
-      fail-fast: false
-      matrix:
-        php-versions: ["8.0", "8.1", "8.2", "8.3"]
-        host-os: ["ubuntu-latest", "windows-latest"]
-        experimental: [false]
-
-    name: PHP ${{ matrix.php-versions }} - OS ${{ matrix.host-os }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: ${{ matrix.php-versions }}
-          coverage: none
-          extensions: sockets, intl, bz2, zip
-
-      - name: Get composer cache directory (Ubuntu)
-        id: composercache-ubuntu
-        run: |
-          echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
-        if: ${{ startsWith( matrix.host-os , 'ubuntu') }}
-
-      - name: Cache dependencies (Ubuntu)
-        uses: actions/cache@v4
-        with:
-          path: ${{ steps.composercache-ubuntu.outputs.dir }}
-          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-composer-
-        if: ${{ startsWith( matrix.host-os , 'ubuntu') }}
-
-      - name: Get composer cache directory (Windows)
-        id: composercache-windows
-        run: |
-          echo "dir=$(composer config cache-files-dir)" >> $env:GITHUB_OUTPUT
-        if: ${{ startsWith( matrix.host-os , 'windows') }}
-
-      - name: Cache dependencies (Windows)
-        uses: actions/cache@v4
-        with:
-          path: ${{ steps.composercache-windows.outputs.dir }}
-          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-composer-
-        if: ${{ startsWith( matrix.host-os , 'windows') }}
-
-      - name: Install dependencies
-        run: composer install --prefer-dist --no-progress
-
-      - name: Check codestyle
-        run: composer check
-
-      - name: Run test suite
-        run: composer phpunit
-
-      - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v4
-        with:
-          file: ./clover.xml
-          fail_ci_if_error: true
-          token: ${{ secrets.CODECOV_TOKEN }}