--- a/CHANGELOG	Fri Apr 06 14:37:22 2018 +0800
+++ b/CHANGELOG	Fri Apr 06 17:54:58 2018 +0200
@@ -7,6 +7,8 @@
   * drop support for Mercurial 4.1
   * `--obsolete` and `--old-obsolete` flags for `hg graft` are dropped
 
+  * fixed some memory leak issue
+
 7.3.0 -- 2018-03-21
 ---------------------