The biggest announcement at this week’s WWDC is one hardly anyone noticed. During the Platforms State of the Union on Tuesday, Andreas Wendker briefly mentioned Bitcode, describing it as an opportunity for future compiler optimizations to be applied to already-submitted apps. He also mentioned that it allows apps to be future-proofed by letting the store add support for future CPU features without developers having to resubmit.
Apple subtly snuck this in as just one more boring App Store requirement. Here’s why it is so much more.
via Ben Bajarin
Fascinating stuff. Basically, this could free Apple from having to think about backward compatibility of apps when designing future chips. That's big.