It took Apple nearly two and a half hours to go through all the new developments in its walled software garden during the WWDC 2019 keynote, and for a good reason. The iOS 13 edition was one of the biggest new iOS releases in recent memory, complete with both user-facing aesthetics like the systemwide dark mode, as well as under-the-hood improvements like 2x faster app loading and much improved app update speeds.
It was also riddled with bugs to an extent that longtime Apple fans noticed and complained about, all thanks to a software testing procedure that has been getting long in the tooth.