We'll be moving a 1.6.3 wiki to a new database. We also need to update to 1.9, as the new server runs only php 5. The documentation I've seen deals with either copying a wiki (unchanged) to a new server, or with upgrading in-place. Given our scenario, I'm wondering if it would be better to do both at the same time.
In particular, if I do a mysqldump of the old wiki, will that import OK into the 1.9 wiki? Or has the db table structure changed enough to prevent this? And if so, is there an easy way around it?
Copying images should be easy enough (I'm guessing here that the image data directory structure won't need to be changed in the new wiki), and likewise I think that transferring the mods to PHP files from old to new should be OK. Skins I'll worry about when we get to that point. Right now, I'm mostly concerned about getting the db transferred.
Also, is there anywhere that lists all of the new features that have been added from version to version? I know most projects have a 'version history' page, but I haven't stumbled across it in my Google searches yet...
Thanks, Ken