[libcxx-commits] [libcxx] [libc++] Fix P1206R7 feature test macros (PR #90914)

[Mark de Wever via libcxx-commits]

mordante wrote:

Sorry I missed this before. The last 18.1.x planned release has been released. @tstellar do you still accept PRs for LLVM 18?

https://github.com/llvm/llvm-project/pull/90914