5.5.6 Core: Fixed bug causing license key to be ignored after changing url from http to https Core: Fixed Select2 (v4) bug where allow null setting would not correctly save empty value Core: Added new acf/validate_field filter Core: Added new acf/validate_field_group filter Core: Added new acf/validate_post_id filter Core: Added new row_index_offset setting Core: Fixed bug causing value loading issues for a taxonomy term in WP < 4.4 Core: Minor fixes and improvements
File field: Fixed bug creating draft post when saving an empty value Image field: Fixed bug mentioned above
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_cachesettings 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
