advice on upgrading nav 4.9.5 on debian 8.11 to nav 5.3 ideally debian 11

Hei all,

we have a larger NAV setup with a bit more than 1000 Cisco Switches and use quite a lot of the features supported in NAV. Since our setup is a bit dusty we plan to upgrade (nav 4.9.5 on debian 8.11 to nav 5.3 ideally debian 11). I wanted to ask for your advice on the upgrade paths possible. We use a external db server that hosts the postgres db.

Requirements/Whishes: - it would be great to keep the devices history and graphs so a simple dump.py and reinstall would be a bit lossy - it would be nice to start with a fresh installed debian 11.

Is there a good/preferred path that we could follow?

Thanks for any ideas and suggestions, Mischa

p.s.: Any ideas / timeframe when nav will release debian 11 packages?