Xcode 13.3 Beta 2 was released on 8 Feb 2022 and requires macOS 12.0+.
It can be downloaded from https://download.developer.apple.com/Developer_Tools/Xcode_13.3_beta_2/Xcode_13.3_beta_2.xip.
Release notes are located at https://developer.apple.com/documentation/xcode-release-notes/xcode-13_3-release-notes.
The SDKs it contains are:
- iOS 15.4 (Build 19E5219e)
- macOS 12.3 (Build 21E5206d)
- tvOS 15.4 (Build 19L5419e)
- watchOS 8.5 (Build 19T5223e)
The compilers it contains are:
- clang 13.1.6 (Build 1316.0.20.6)
- swift 5.6 (Build 5.6.0.322.3)