Apple、デベロッパー向けに macOS Big Sur 11.5 beta 4 (20G5052c)、iOS 14.7 beta 4 (18G5052d)、iPadOS 14.7 beta 4 (18G5052d)、watchOS 7.6 beta 4 (18U5552d)、tvOS 14.7 beta 4 (18M5552d) を配布開始
https://developer.apple.com/jp/news/releases/