Add @since tags to all methods in public namespace

* enhance the app development experience - you can look up the
  method introduction right inside the code without searching
  via git blame
* easier to write apps for multiple versions

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/public/files/invalidcontentexception.php b/lib/public/files/invalidcontentexception.php
index d02118da8a2..6aebf367241 100644
--- a/lib/public/files/invalidcontentexception.php
+++ b/lib/public/files/invalidcontentexception.php
@@ -31,5 +31,6 @@ namespace OCP\Files;
 
 /**
  * Exception for invalid content
+ * @since 6.0.0
  */
 class InvalidContentException extends \Exception {}