The current testing release 3.9-20221011 has many changes with made it more mature in the last months. It does not much left on its way to stable 3.10. release. Main improvements are:
- switch to Qt6 on most platforms
- updated Centreon
- improved Zabbix
- Icinga2 fixes
- new IcingaDB support
- Prometheus fixes
- Checkmk 2.0 fixes
- and many more small fixes
Please help to finish a stable release at https://github.com/HenriWahl/Nagstamon/releases/tag/latest.