Xcode 9 has some pretty heinous issues for us, specifically within the simulator. So, this upgrades our project to the 9.1 beta format and lets us use the nice new tools without any of the 9.0 issues (although there are some 9.1 related bugs, we don't have to deal with them).
Overview
Xcode 9 has some pretty heinous issues for us, specifically within the simulator. So, this upgrades our project to the 9.1 beta format and lets us use the nice new tools without any of the 9.0 issues (although there are some 9.1 related bugs, we don't have to deal with them).