diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index ed0c0e369fca74..9e1558d8acc99f 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -302,6 +302,11 @@ Modified Compiler Flags
   the ``promoted`` algorithm for complex division when possible rather than the
   less basic (limited range) algorithm.
 
+- The ``-fveclib`` option has been updated to enable ``-fno-math-errno`` for
+  ``-fveclib=ArmPL`` and ``-fveclib=SLEEF``. This gives Clang more opportunities
+  to utilize these vector libraries. The behavior for all other vector function
+  libraries remains unchanged.
+
 Removed Compiler Flags
 -------------------------