Index: clang/docs/ReleaseNotes.rst
===================================================================
--- clang/docs/ReleaseNotes.rst
+++ clang/docs/ReleaseNotes.rst
@@ -462,6 +462,12 @@
   that can be used for such compatibility. The demangler now demangles
   symbols with named module attachment.
 
+- Implemented some features for C++20 Modules, including: Partitions, 
+  Reachability, Header Unit and ``extern "C++"`` semantics.
+
+- Implemented `P1779R3: ABI isolation for member functions <https://wg21.link/P1779R3>`_.
+- Implemented `P1874R1: Dynamic Initialization Order of Non-Local Variables in Modules <https://wg21.link/P1874R1>`_.
+
 - As per "Conditionally Trivial Special Member Functions" (P0848), it is
   now possible to overload destructors using concepts. Note that the rest
   of the paper about other special member functions is not yet implemented.