added more flibiliy for versions, added dry-run option

Controller/UpdateController.php

@@ -119,7 +119,7 @@ class UpdateController
 
         echo "Highest Stable Version: $highestStableVersion" . PHP_EOL;
         if (!$this->dryRun) {
-            echo "Installed Version: $installedVersion" . PHP_EOL;
+            echo 'Installed Version: '. $this->installedVersion . PHP_EOL;
         }
 
         [$major, $minor, $patch] = explode(separator: '.', string: $stableVersions[$highestStableVersion]['current']);

README.md

@@ -21,7 +21,7 @@ Then: Install composer (https://getcomposer.org/download/) and run
 `composer install`
 
 followed by:  
-`php update.php`
+`php update.php` or `/update.php`
 
 If you are using KeyHelp, replace
 

update.php

@@ -1,4 +1,4 @@
-#!/usr/bin/keyhelp-php81 -d apc.enable_cli=1
+#!/usr/bin/env php
 <?php
 
 use App\UpdateController;