About: Add action on maintenance page, reset all the levels of confidentiality for all photos in the gallery 'for all'
Compatible with: 11
New languages: Русский [RU]Ελληνικά [GR]日本語 [JP]中文 (简体) [CN]Dansk [DK] Total : 19
update for piwigo 11
New languages:
* Danish (Dansk [DK])
* Greek (Ελληνικά [GR])
* Japanese (日本語 [JP])
* Russian (Русский [RU])
* Chinese (中文 (简体) [CN])