[LLD] [doc] Add release notes for MinGW changes for 15.x

diff --git a/lld/docs/ReleaseNotes.rst b/lld/docs/ReleaseNotes.rst
index 6cc4cb465ad71ec6cfd56d944744c611e05f57c6..a2afdc4d2bf32a5d22ca22c29f709344b3428122 100644 (file)
--- a/lld/docs/ReleaseNotes.rst
+++ b/lld/docs/ReleaseNotes.rst
@@ -60,7 +60,8 @@ COFF Improvements
 MinGW Improvements
 ------------------
 
-* ...
+* The ``--disable-reloc-section`` option is now supported.
+  (`D127478 <https://reviews.llvm.org/D127478>`_)
 
 MachO Improvements
 ------------------