Apple、デベロッパー向けにiOS 18.3 RC (22D60)、iPadOS 18.3 RC (22D60)、iPadOS 17.7.4 RC (21H414)、macOS 15.3 RC (24D60)、macOS Sonoma 14.7.3 RC 4 (23H417)、tvOS 18.3 RC (22K557)、visionOS 2.3 RC (22N896)、watchOS 11.3 RC (22S553)を配布開始
https://developer.apple.com/news/releases/