Upgrade to 3.5.5

kirby/src/Cms/Files.php

@@ -31,7 +31,7 @@ class Files extends Collection
      * current collection
      *
      * @param mixed $object
-     * @return self
+     * @return $this
      */
     public function add($object)
     {
@@ -57,7 +57,7 @@ class Files extends Collection
      *
      * @param array $files List of file ids
      * @param int $offset Sorting offset
-     * @return self
+     * @return $this
      */
     public function changeSort(array $files, int $offset = 0)
     {
@@ -76,7 +76,7 @@ class Files extends Collection
      *
      * @param array $files
      * @param \Kirby\Cms\Model $parent
-     * @return self
+     * @return static
      */
     public static function factory(array $files, Model $parent)
     {
@@ -124,7 +124,7 @@ class Files extends Collection
      * Filter all files by the given template
      *
      * @param null|string|array $template
-     * @return self
+     * @return $this|static
      */
     public function template($template)
     {