update minimum requirements to PHP 7.2 and WP 5.1

Author: stklcode

.github/workflows/test.yml

@@ -6,8 +6,8 @@ jobs:
     strategy:
       matrix:
         include:
-          - php: '5.6'
-            wordpress: '4.7'
+          - php: '7.2'
+            wordpress: '5.1'
           - php: '7.4'
             wordpress: '5.9'
           - php: '8.0'
@@ -16,7 +16,7 @@ jobs:
             wordpress: '6.4'
           - php: '8.3'
             wordpress: 'latest'
-          - php: '8.3'
+          - php: '8.4'
             wordpress: 'nightly'
     steps:
       - name: Checkout

composer.json

@@ -22,17 +22,17 @@
     "forum": "https://wordpress.org/support/plugin/cachify"
   },
   "require": {
-    "php": ">=5.6",
-    "composer/installers": "^v1|^v2"
+    "php": ">=7.2",
+    "composer/installers": "^v2"
   },
   "require-dev": {
     "dealerdirect/phpcodesniffer-composer-installer": "^v1.0",
     "matthiasmullie/minify": "^1.3",
-    "phpunit/phpunit": "^5|^7|^9",
+    "phpunit/phpunit": "^7|^9",
     "squizlabs/php_codesniffer": "^3.11",
     "phpcompatibility/phpcompatibility-wp": "^2.1",
     "wp-coding-standards/wpcs": "^3.1",
-    "yoast/phpunit-polyfills": "^2.0"
+    "yoast/phpunit-polyfills": "^4.0"
   },
   "scripts": {
     "post-install-cmd": [

phpcs.xml

@@ -20,7 +20,7 @@
     <exclude-pattern>vendor/*</exclude-pattern>
 
     <!-- WordPress coding standards -->
-    <config name="minimum_supported_wp_version" value="4.7"/>
+    <config name="minimum_supported_wp_version" value="5.1"/>
     <rule ref="WordPress">
         <exclude name="PSR2.Classes.PropertyDeclaration.Underscore"/>
         <exclude name="PSR2.Methods.MethodDeclaration.Underscore"/>
@@ -33,6 +33,6 @@
     </rule>
 
     <!-- Include sniffs for PHP cross-version compatibility. -->
-    <config name="testVersion" value="5.6-"/>
+    <config name="testVersion" value="7.2-"/>
     <rule ref="PHPCompatibilityWP"/>
 </ruleset>

readme.txt

@@ -2,9 +2,9 @@
 * Contributors:      pluginkollektiv
 * Donate link:       https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=TD4AMD2D8EMZW
 * Tags:              cache, caching, performance, optimize, speed
-* Requires at least: 4.7
+* Requires at least: 5.1
 * Tested up to:      6.7
-* Requires PHP:      5.6
+* Requires PHP:      7.2
 * Stable tag:        2.4.1
 * License:           GPLv2 or later
 * License URI:       https://www.gnu.org/licenses/gpl-2.0.html