diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst
index b8d92a6c881c6..62f10ccdb87ec 100644
--- a/clang/docs/ReleaseNotes.rst
+++ b/clang/docs/ReleaseNotes.rst
@@ -977,6 +977,12 @@ Arm and AArch64 Support
   in leaf functions after enabling ``-fno-omit-frame-pointer``, you can do so by adding
   the ``-momit-leaf-frame-pointer`` option.
 
+- Support has been added for the following processors (-mcpu identifiers in parenthesis):
+
+  For AArch64:
+
+  * FUJITSU-MONAKA (fujitsu-monaka)
+
 Android Support
 ^^^^^^^^^^^^^^^
 
diff --git a/llvm/docs/ReleaseNotes.md b/llvm/docs/ReleaseNotes.md
index 2835ace34bff8..d478502417b37 100644
--- a/llvm/docs/ReleaseNotes.md
+++ b/llvm/docs/ReleaseNotes.md
@@ -131,6 +131,8 @@ Changes to the AArch64 Backend
 * Assembler/disassembler support has been added for Armv9.6-A (2024)
   architecture extensions.
 
+* Added support for the FUJITSU-MONAKA CPU.
+
 Changes to the AMDGPU Backend
 -----------------------------