[WebAssembly] Update release notes
Summary:
Explicitly note that multithreading support is not included in the stable
ABI.
Differential Revision: https://reviews.llvm.org/D56681
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351213 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst
index 3ffebf1..db9cf51 100644
--- a/docs/ReleaseNotes.rst
+++ b/docs/ReleaseNotes.rst
@@ -105,6 +105,8 @@
the object file format has an ABI versioning capability, and one anticipated
use for it will be to add support for returning small structs as multiple
return values, once the underlying WebAssembly platform itself supports it.
+Additionally, multithreading support is not yet included in the stable ABI.
+
Changes to the OCaml bindings
-----------------------------
