Nagstamon 3.9 testing release matures

The current testing release 3.9 which is about to become the stable 3.10 one day gets more and more problems fixed. Main improvements are:

  • switch to Qt6 on most platforms
  • updated Centeon
  • improved Zabbix
  • Icinga2 fixes
  • Checkmk 2.0 fixes
  • and many more small fixes

Have a look at https://github.com/HenriWahl/Nagstamon/releases/tag/latest to help finding more bugs. Even better - check the issue tracker at https://github.com/HenriWahl/Nagstamon/issues to help fixing the already found ones.