Apple、デベロッパー向けにmacOS Big Sur 11.2 beta 2 (20D5042d)、iOS 14.4 beta 2 (18D5043d)、iPadOS 14.4 beta 2 (18D5043d)、watchOS 7.3 beta 2 (18S5793d)、tvOS 14.4 beta 2 (18K5793d)を配布開始
https://developer.apple.com/jp/news/releases/