Apple iOS 8.1 beta 2 is now availble to iOS developers. It has been started to seed to its registered developers. The new update is about 57MB in size which brings bug fixes and performance improvements from the previous beta version.
Apple has already started to work in series of updates. The new updates iOS 8.2 and 8.3 are already in working state. This update iOS 8.1 beta 2 includes the improvement in Bluetooth connections. Its been a week since the Apple seeded the beta 1 updates to the developers.