[llvm-branch-commits] [clang] [18.x][Docs] Add release note about Clang-defined target OS macros (PR #80044)

[Zixu Wang via llvm-branch-commits]

zixu-w wrote:

> Looks like this patch caused the documentation build to fail.

Fixed. Thanks for checking @tstellar !

https://github.com/llvm/llvm-project/pull/80044