New version 1.6.0

A new version is now online with the following improvements:
  • Upgrade from PHP 5.6 to PHP 8.2. That should result in a performance increase from 100 to 500%.
  • Upgrade from MySQL 5 to 8. That should also result in a performance boost.
  • Optimize database queries.
  • Optimize CSS. Some browsers aren't supported now any more (e.g. IE 11).
  • Several bugfixes.