diff --git a/doc/variant2/changelog.adoc b/doc/variant2/changelog.adoc
index 34a5b91..c13464a 100644
--- a/doc/variant2/changelog.adoc
+++ b/doc/variant2/changelog.adoc
@@ -1,5 +1,5 @@
 ////
-Copyright 2019 Peter Dimov
+Copyright 2019, 2020 Peter Dimov
 
 Distributed under the Boost Software License, Version 1.0.
 
@@ -11,6 +11,10 @@ http://www.boost.org/LICENSE_1_0.txt
 # Revision History
 :idprefix: changelog_
 
+## Changes in 1.73.0
+
+* Added support for `std::hash`, `boost::hash`
+
 ## Changes in 1.71.0
 
 After the Boost formal review, the implementation has been