Fixed #460

Author: Geolim4

docs/migration/MigratingFromV5ToV6.md

@@ -8,6 +8,37 @@ Notice: Undefined index: e in /phpfastcache/src/phpFastCache/Core/Pool/DriverBas
 Fatal error: Uncaught phpFastCache\Exceptions\phpFastCacheInvalidArgumentException: $expiration must be an object implementing the DateTimeInterface in ...
 ```
 
+### Setting up a default config
+
+#### :clock1: Then:
+PhpFastCache used to set a default global config using the `CacheManager::setup()` method
+
+```php
+namespace My\Custom\Project;
+
+
+$instance = CacheManager::setup([
+    'path' => 'somewhere'
+]);
+$instance = CacheManager::getInstance('Files');
+
+```
+
+#### :alarm_clock: Now:
+This method has been changed is now replaced by the `CacheManager::setDefaultConfig()` method.
+Using the old `CacheManager::setup()` method will trigger a `phpFastCacheInvalidConfigurationException`
+
+```php
+namespace My\Custom\Project;
+
+
+$instance = CacheManager::setDefaultConfig([
+    'path' => 'somewhere'
+]);
+$instance = CacheManager::getInstance('Files');
+
+```
+
 ### Type hint of Driver instances
 
 #### :clock1: Then:

src/phpFastCache/CacheManager.php

@@ -332,6 +332,18 @@ public static function setDefaultConfig($name, $value = null)
         }
     }
 
+    /**
+     * @param $name string|array
+     * @param mixed $value
+     * @throws phpFastCacheInvalidConfigurationException
+     * @deprecated Method "setup" is deprecated, please use "setDefaultConfig" method instead
+     */
+    public static function setup($name, $value = null)
+    {
+        throw new phpFastCacheInvalidConfigurationException(sprintf('Method "%s" is deprecated, please use "setDefaultConfig" method instead.', __FUNCTION__));
+    }
+
+
     /**
      * @return array
      */