Apple、デベロッパー向けにiOS 16.3 RC (20D47)、iPadOS 16.3 RC (20D47)、macOS 13.2 RC (22D49)、watchOS 9.3 RC (20S648)、tvOS 16.3 RC (20K650)、
iOS 15.7.3 RC (19H307)、iPadOS 15.7.3 RC (19H307)を配布開始
https://developer.apple.com/jp/news/releases/