- added: 'mailster_admin_header' hook
- added: missing added argument
- added: if verification of subscribers fails the WP_Error object contains now the initial data
- improved: better handling of suppression of WPDB in lists class
- improved: check for missing functions in conditions
- fixed: conditions script must require mailster-script
- update: enabled beacon on the upgrade page
- fixed: check for existence of block editor in admin header
- fixed: default option on custom fields were not displayed correctly
- fixed: id was not set for custom fields on first save
- improved: lists assignments for new subscribers
- improved: refractor of lists class
- improved: the way tags are saved and loaded
- returned ids of subscriber queries are now integers
