Apple swiftly released a revised iOS 26 beta 1 (23A5260u) just days after the initial release (23A5260n). This unexpected second build, available only for iPhone 15 and 16 models, likely addresses a critical bug, security flaw, or potential product leak. While the version number shows minimal change, users shouldn't expect visible interface alterations. Apple's rapid response highlights the importance of the correction.

Prepared by Jonathan Pierce and reviewed by editorial team.