Xcode 14.3 Beta 1 was released on 16 Feb 2023 and requires macOS 13.0+.
It can be downloaded from https://download.developer.apple.com/Developer_Tools/Xcode_14.3_beta/Xcode_14.3_beta.xip.
Release notes are located at https://developer.apple.com/documentation/xcode-release-notes/xcode-14_3-release-notes.
The SDKs it contains are:
- iOS 16.4 (Build 20E5212f)
- macOS 13.3 (Build 22E5219e)
- tvOS 16.4 (Build 20L5463g)
- watchOS 9.4 (Build 20T5222f)
The compilers it contains are:
- clang 14.0.3 (Build 1403.0.22.11)
- swift 5.8 (Build 5.8.0.117.11)