[NFC][AArch64] Late 2022 A-Profile Extension Release Notes

diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index da0ede2..98582b3 100644 (file)
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -82,6 +82,9 @@ Changes to Interprocedural Optimizations
 Changes to the AArch64 Backend
 ------------------------------
 
+* Added Assembly Support for the 2022 A-profile extensions FEAT_GCS (Guarded
+  Control Stacks), FEAT_CHK (Check Feature Status), and FEAT_ATS1A.
+
 Changes to the AMDGPU Backend
 -----------------------------
 * More fine-grained synchronization around barriers for newer architectures