Support timeline for Apple LLVM version 9.1.0 (clang-902.0.39.2)

I am running macOS High Sierra 10.13.6 with Xcode version 9.4.1. That means I’m running Apple LLVM version 9.1.0 as stated in the subject line. CUDA 9.2 does not currently work with the version of clang I have. My question is simply what is the timeline for CUDA supporting the this version of clang? Weeks? Months? Years?