Xcode 15.1 Beta 1 was released on 3 Oct 2023 and requires macOS 13.5+.
It can be downloaded from https://download.developer.apple.com/Developer_Tools/Xcode_15.1_beta/Xcode_15.1_beta.xip.
Release notes are located at https://developer.apple.com/documentation/xcode-release-notes/xcode-15_1-release-notes.
The SDKs it contains are:
- iOS 17.0 (Build 21A326)
- macOS 14.0 (Build 23A334)
- tvOS 17.0 (Build 21J351)
- watchOS 10.0 (Build 21R354)
- visionOS 1.0 (Build 21N5259i)
The compilers it contains are:
- clang 15.0.0 (Build 1500.1.0.1.1)
- swift 5.9 (Build 5.9.2.1.6)