diff -r e3acb8823900 -r a3fbe5293bf6 README
--- a/README	Wed May 31 22:15:34 2017 +0200
+++ b/README	Fri Jun 16 11:32:21 2017 +0200
@@ -121,6 +121,14 @@
 Changelog
 =========
 
+6.4.0 - inprogress
+------------------
+
+ - effect flag: the experiment is now active by default,
+   (see 'hg help -e evolve' to opt out)
+ - obscache: reduce impact on large repository
+ - template: signifiant improvement to the '{obsfate}' template (now 4.2+ only)
+
 6.3.2 - in progress
 -------------------