diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst
--- a/llvm/docs/ReleaseNotes.rst
+++ b/llvm/docs/ReleaseNotes.rst
@@ -80,6 +80,8 @@
   available in the `RFC
   <https://lists.llvm.org/pipermail/llvm-dev/2018-November/127461.html>`_.
 
+* Windows support for libFuzzer (x86_64).
+
 .. NOTE
    If you would like to document a larger change, then you can add a
    subsection about it right here. You can copy the following boilerplate