Apple has a habit of extracting any shared code between apps into an OS lib, and this is actually often easier to develop on internally than hosting shared deps elsewhere because all devs are constantly updating to the latest nightly OS release and therefore constantly getting the latest version of everyone else's libs.
The result is that it's basically impossible to write new code without it having hard dependencies on the newest OS! Kinda sucks for the outside world though.
The result is that it's basically impossible to write new code without it having hard dependencies on the newest OS! Kinda sucks for the outside world though.