After the buggy iOS 13 release, Apple changed tack for the feature-rich iOS 14 development

It turns out that Apple has indeed prepped a buggy iOS 13 thanks to a software testing procedure that has been getting long in the tooth. All the new and untested features have been heretofore folded into one big daily build with a disparate level of readiness, resulting in a myriad of bugs been carried out since the first alphas into the final retail release, as many an iPhone or iPad owner became painfully aware of in the last two months or so. Crashing apps, including stock ones like Mail or messaging, and signal drop glitches are just a few examples why Apple was quick to issue a release after release to iron them out so quickly.
Going forward, Apple's head of software development Craig Federighi will require all buggy and unfinished features to be turned off by default in the daily builds, and the testers can then choose to flip the switch at will, resulting in a much more streamlined process, ensuring everyone is on the same page.
Talk about a lesson learned, and the new software testing procedure will apply not only to iOS, but also to iPadOS, watchOS, macOS and tvOS going forward. Fingers crossed, but now we can't help but wonder what would this "breadth of new capabilities" coming with iOS 14 entail. Any wild guesses?