On Thu, Aug 17, 2017 at 10:06 AM, Strainu strainu10@gmail.com wrote:
Will the upgrade be seamless regardless of how they upgrade their version?
In the best-case scenario, they'll have to run update.php as with most other MediaWiki updates, and it'll update everything for them. I don't know of any reason that shouldn't be the case.
We may also increase the version requirement, so if they're still on PG 8.3 they might have to upgrade that too.
Will they be able to recover their website after disaster from a backup with the old layout?
They'd likely be able to repeat whatever had to be done to upgrade the first time around.