diff --git a/doc/src/history.adoc b/doc/src/history.adoc
index b54a840ea..2b0facf98 100644
--- a/doc/src/history.adoc
+++ b/doc/src/history.adoc
@@ -6,6 +6,8 @@
 * Fix errors configuring intel-linux toolset if icpx is not in the PATH but
   icpc is in the PATH.
   -- _Mark E. Hamilton_
+* Add `cxxstd=20` to msvc toolset now that VS 2019 onward supports it.
+  -- _Peter Dimov_
 
 == Version 4.7.1