5.5.5
File field: Fixed bug creating draft post when saving an empty value
Image field: Fixed bug mentioned above
5.5.4
File field: Added logic to connect selected attachment to post (only if attachment is not connected)
File field: Removed `filesize()` call causing performance issues with externally hosted attachments
File field: Added AJAX validation to basic uploader
Image field: Added connect logic mentioned above
Image field: Added AJAX validation mentioned above
True false field: Improved usability by allowing tab key to focus element (use space or arrow keys to toggle)
Gallery field: Fixed bug causing unsaved changes in sidebar to be lost when selecting another attachment
API: Fixed `add_row()` and `add_sub_row()` return values (from true to new row index)
Core: Improved `get_posts()` query speeds by setting update_cache settings to false
Core: Allowed instruction_placement setting on widget forms (previously set always to below fields)
Core: Removed ACF PRO invalid license nag and will include fix for protocol change in next release
Language: Updated French translation - thanks to Martial Parfait