Apple、デベロッパー向けにXcode 26.1 beta 2 (17B5035f)、iOS 26.1 beta 2 (23B5059e)、iPadOS 26.1 beta 2 (23B5059e)、macOS 26.1 beta 2 (25B5057f)、macOS Sonoma 14.8.2 RC 2 (23J115)、macOS Sequoia 15.7.2 RC 2 (24G313)、tvOS 26.1 beta 2 (23J5558e)、visionOS 26.1 beta 2 (23N5028e)、watchOS 26.1 beta 2 (23S5017d)を提供開始
https://developer.apple.com/news/releases/