[llvm-branch-commits] [clang] [llvm] Add some brief LLVM 19 release notes for Pointer Authentication ABI support (PR #104657)

[Anton Korobeynikov via llvm-branch-commits]

asl wrote:

Feel free to add more, I decided to go brief as the documentation is not there yet.

Thanks!

https://github.com/llvm/llvm-project/pull/104657