I have an old install of ownCloud with data that I’d like to get into Nextcloud 10. I just wanted to confirm that the correct migration path would be the following manual upgrades:
ownCloud 8.2.3 > Nextcloud 9.0.53 > Nextcloud 10
The data I want is in the contacts, calendar and bookmark apps. I’m presuming the versions mentioned in the upgrade path above would carry compatability across, right?
PS, for the record, no, I haven’t been just using ownCloud 8.2.3 while being an NC contributor all this time! This is data from my old server that I never bothered to migrate. NC 10 runs on my main site!
On the basis NC is a direct drop in for OC 9 I don’t see any issue upgrading from OC 8.2.3 to NC 9.0.53, although if I were to do it right now I’d probably update to OC 9, swap to NC9 and update to 10. So clarification would indeed be useful.
I can confirm that 8.2.7 (from debian packages) -> 9.0.53 (from zipfile, and changing to php7 along the way) -> 10.0 works and preserves data in calendar, contacts, news and tasks. Well, and your files, of course.
Still: You want to have a backup before upgrading. Database and files, of course!
calendar and contacts will auto-upgrade, news and tasks have to be installed manually (but will remember their previous data).