CHANGELOG.md in uglifier-3.1.0 vs CHANGELOG.md in uglifier-3.1.1

@@ -1,4 +1,8 @@
+## 3.1.1 (27 February 2017)
+
+- disable `reduce_vars` by default as it causes JS errors (#110)
+
 ## 3.1.0 (27 February 2017)
 
 - update UglifyJS to 2.8.0
 - add reduce_vars compress option
 - enable `reduce_vars` and `collapse_vars` compress options by default