diff --git a/ANNOUNCE b/ANNOUNCE
index 1b1c5b8..ff44aa2 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -8,7 +8,11 @@ programs.
 
 Highlights of this release include:
 
-- 
+- Numerous improvements to the Objective-C++ exception interoperation code.
+  The runtime now dynamically detects whether the libcxxrt, libsupc++, or
+  libc++abi variant of the Itanium C++ Exception ABI is being used.  This is
+  the first version to support exception interoperability with libc++abi.
+
 
 You may obtain the code for this release from git and use the 2.2 branch: