Revision 13.a (2023-05-15)
About: Registered users can select photos from the gallery and save them into collections - an advanced "favorites" feature.
They can also set their collections as publicly visible and send them by email.
Administrators can export collections in CSV format.
Changes: #34 Warning (countable) on sending an email to share a collection
#35 warning in share by email
Revision 13.a (2023-05-10)
About: Allows users to download photo selections in ZIP files (such as album, search result, newest....)
Compatible with 'User Collections' plugin
Compatible with 'Bootstrap darkroom' theme
Changes: Fix compatibility issues with PHP 8.1