How to add the 167x167 iPad Pro app icon?

Question

There's no space in Xcode 7.1's app icon asset catalog for the iPad Pro's 167x167 app icon... aren't asset catalogs the current best practice for adding app icons? If not how are we supposed to add it?

Answer 1

There is now a space for this in Xcode 7.2

Xcode 7.2 will also warn if it is not present