I installed MacOS Sonoma on HyperV, installed XCode and used the following commands to check compiler and SDK versions:
admin@son ~ % xcode-select -print-path
/Applications/Xcode.app/Contents/Developer
admin@son ~ % xcrun -sdk macosx -find clang
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
admin@son ~ % clang --version
Apple clang version 15.0.0 (clang-1500.3.9.4)
Target: x86_64-apple-darwin23.4.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
admin@son ~ % xcrun -sdk macosx --show-sdk-path
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.4.sdk