Xcode 14.3 Beta 3 was released on 15 Mar 2023 and requires macOS 13.0+.
It can be downloaded from https://download.developer.apple.com/Developer_Tools/Xcode_14.3_beta_3/Xcode_14.3_beta_3.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 20E5238a)
- macOS 13.3 (Build 22E5245a)
- tvOS 16.4 (Build 20L5489a)
- watchOS 9.4 (Build 20T5248a)
The compilers it contains are:
- clang 14.0.3 (Build 1403.0.22.14.1)
- swift 5.8 (Build 5.8.0.124.1)