Apple、デベロッパー向けに macOS Big Sur 11.5 beta 5 (20G5065a)、iOS 14.7 beta 5 (18G5063a)、iPadOS 14.7 beta 5 (18G5063a)、watchOS 7.6 beta 5 (18U5561a)、tvOS 14.7 beta 5 (18M5559a)を配布開始
https://developer.apple.com/jp/news/releases/