Release Notes: Bulgarian language support was added. An improved CSS file selector in the core plugin LocalFiles Editor. When you create a sub-album in a private album, admins and the album creator automatically get permission on it. New methods in the Piwigo API to set a photo as representative of an album or to set photo manual order in an album. To increase performance, Piwigo 2.2.0 removed a bit of randomness on thumbnails when an album has no defined representant. Piwigo 2.2.4 gives you back this randomness as an option. Better detection of upgrade failure.
Release Notes: Greek language support was added. A new technical library for tag manager was implemented. The ability to zoom on photos in the batch manager was added. In the synchronization process, it's easier to select a single album from a huge list of albums. Some options were added in the Web API to simplify code on Lightroom publication plugin and on the iPhone application (under preparation).