diff --git a/README b/README
index e5be06ba0..2fbae187b 100644
--- a/README
+++ b/README
@@ -89,6 +89,7 @@ invalid number formats (1.2e6.3) will cause errors as such documents can not be
  reliably.
 
 Release history:
+20170516    Roll up recent commits.
 
 20160810    Revert code that was breaking opt*() methods.