Use actions/checkout@v4

Author: jamieburchell

.github/workflows/test-phpunit.yml

@@ -134,7 +134,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Override PHP ini values for JIT compiler
         if: matrix.compiler == 'jit'
         run: echo "PHP_INI_VALUES::assert.exception=1, zend.assertions=1, opcache.enable=1, opcache.enable_cli=1, opcache.optimization_level=-1, opcache.jit=1255, opcache.jit_buffer_size=64M" >> $GITHUB_ENV 

readme.rst

@@ -1,3 +1,16 @@
+.. ⚠️ WARNING::
+
+   This is a **personal fork of CodeIgniter 3**, maintained **only for my own use and for the company I work for**.
+   It exists to **update CodeIgniter 3 for newer PHP versions** used in our projects.
+
+   - 🛠️ This fork is **not intended for public use**.
+   - ❌ I don’t provide support, accept issues, or review pull requests.
+   - ⏳ Compatibility with older PHP versions is **not guaranteed**.
+   - 🔄 **Version requirements and compatibility may change at any time without notice.**
+   - 🔍 If you’re looking for a maintained public fork, there are **other community versions** available on GitHub.
+
+   Use this repository **at your own risk**.
+
 ###################
 What is CodeIgniter
 ###################