NFC: Mention auto-vec support for SVE in release notes.
diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
index e8934f7..b2d8d8c 100644
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -82,6 +82,7 @@
"tune-cpu" attribute is absent it tunes according to the "target-cpu".
* Fixed relocations against temporary symbols (e.g. in jump tables and
constant pools) in large COFF object files.
+* Auto-vectorization now targets SVE by default when available.
Changes to the ARM Backend
--------------------------
