Persistence in OH3.x

[hmerk (Hans-Jörg Merk)]

Please check this thread

Guide: Installing and testing OH3 snapshots/milestones using APT and YUM

Hi all, .DEB and .RPM packages for openHAB 3 snapshots and milestones (3.0.0.M1) are now available. I’m going to use this space to detail what’s changing and how to use them. If anything changes with the packages I will update this post. Note for openHABian users: openHABian has a few extra features such as zram that use openHAB 2 specific paths. If you want to try openHAB 3, you should disable ZRAM first and expect that there will be a few things (such as frontail) that will not work as you’d …

Upgrade existing configs from 2.5.x to 3.0 ist still on the roadmap afaik.