Apple、デベロッパー向けにmacOS Big Sur 11 beta 7 (20A5374g)、iOS 14.2 beta (18B5052h)、iPadOS 14.2 beta (18B5052h)、watchOS 7.1 beta (18R5552f)、tvOS 14.2 beta (18K5027e)を配布開始
https://developer.apple.com/news/releases/