CHANGELOG.md in uglifier-3.1.11 vs CHANGELOG.md in uglifier-3.1.12

@@ -1,4 +1,8 @@
+## 3.1.12 (31 March 2017)
+
+- update UglifyJS to 2.8.20
+
 ## 3.1.11 (28 March 2017)
 
 - update UglifyJS to 2.8.17
 
 ## 3.1.10 (25 March 2017)