Just remember, Apple can be a bit... onerous with their review process, so don't forget to submit early, like a week or two early
In this last build, things seem pretty stable, even on iOS 9.1 Public Beta 1. Still kinda wish that bigger prisons were allowed, at least for more powerful iPads like the iPad Air 2, the iPad Mini 4, or the iPad Pro, which have 2 GB of RAM or more. A good example to look at is Procreate, a drawing/art app. It scales the number of layers allowed and the maximum size of the canvas based on the device used.

