--- a/mercurial/util.py	Sat May 28 12:53:33 2016 -0700
+++ b/mercurial/util.py	Sat May 28 12:57:28 2016 -0700
@@ -65,6 +65,7 @@
 
 md5 = hashlib.md5
 sha1 = hashlib.sha1
+sha256 = hashlib.sha256
 sha512 = hashlib.sha512
 _ = i18n._