Although changes to the firmware are still unknown, iOS 8.2 beta 4 does take a step closer to the upcoming release of the Apple Watch, enabling support for WatchKit for developers. The latest beta version of the firmware can be installed today, but we expect Apple to release a smaller update, iOS 8.1.3, before releasing iOS 8.2 to the public alongside the Apple Watch.
iOS 8.2 beta 4 can be installed going in Settings > Software Update on a device enabled within Apple's developer portal. Since the beta is coming to a close, we assume Apple will release the final build to the public sometime in March.
