diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -56,7 +56,8 @@
 Changes to the LLVM IR
 ----------------------
 
-* ...
+* Using the legacy pass manager for the optimization pipeline is deprecated and
+  will be removed after LLVM 14.
 
 Changes to building LLVM
 ------------------------