Upgrade to 3.5.1

kirby/src/Cache/ApcuCache.php

@@ -2,7 +2,7 @@
 
 namespace Kirby\Cache;
 
-use APCuIterator;
+use APCUIterator;
 
 /**
  * APCu Cache Driver
@@ -35,7 +35,7 @@ class ApcuCache extends Cache
     public function flush(): bool
     {
         if (empty($this->options['prefix']) === false) {
-            return apcu_delete(new APCuIterator('!^' . preg_quote($this->options['prefix']) . '!'));
+            return apcu_delete(new APCUIterator('!^' . preg_quote($this->options['prefix']) . '!'));
         } else {
             return apcu_clear_cache();
         }

kirby/src/Cache/MemCached.php

@@ -2,6 +2,8 @@
 
 namespace Kirby\Cache;
 
+use Memcached as MemcachedExt;
+
 /**
  * Memcached Driver
  *
@@ -15,7 +17,7 @@ class MemCached extends Cache
 {
     /**
      * store for the memache connection
-     * @var Memcached
+     * @var \Memcached
      */
     protected $connection;
 
@@ -36,7 +38,7 @@ class MemCached extends Cache
 
         parent::__construct(array_merge($defaults, $options));
 
-        $this->connection = new \Memcached();
+        $this->connection = new MemcachedExt();
         $this->connection->addServer($this->options['host'], $this->options['port']);
     }