I am think of moving from 3.0.88 to 4, mostly due to wanting to run some things that require moving to Debain 9. I can't seem to find any guides and only one forum post noting issues when upgrading.
My my main concern is loosing data in a large 24 disk snapraid array. My disks are mounted in a mixture of /media and /srv (newer disks in /srv, but the snapraid array combines drives from both) Are there any known issues?
These days I run very few plugins and almost everything I run on my NAS is done through docker, but are 3.x plugins still compatible?
In fact if anybody has any useful info I would be very grateful to hear how it went. I am planning to simply take the omv-release-upgrade route.