I’ve updated Simple Event Attendance (SEATT WordPress plugin) to version 1.4.0. This brings bug fixes, and updates in line with the release of WordPress 4.5.3, as well as the upcoming 4.6.0 release.
The plugin can now also be found on GitHub: https://github.com/withdave/SEATT to help you track changes if you've made any modifications yourself.
This covered some of the feature requests at https://withdave.com/2017/05/seatt-feature-request-may-2017-update/, as well as fixes for get_currentuserinfo in WP 4.5:
* Replaced get_currentuserinfo with wp_get_current_user to fix deprecation issue
* Fixed bug where users couldn't register to an event with limit set to 0 (unlimited)
* Fixed bug where server time was used rather than blog local time on front end form
* Updated admin and template to allow use of TinyMCE for WYSIWYG editor. Can now also add images, colours etc.