15-01-2015, 10:03 PMMat Wrote: Doesn't entirely work like that, otherwise there would be a lot more 1.8 files, I believe the database structure is also different aswell as the IENGINE and the MYENGINE.
It actually does. Well, for most or let's say a lot of plugins.
Plugins which are core-based (based on the mybb core files) will not work. Plugins which just add additional features, will mostly work.