CHANGES.md in json_pure-2.1.0 vs CHANGES.md in json_pure-2.2.0

@@ -1,6 +1,9 @@
 # Changes
 
+## 2019-02-21 (2.2.0)
+ * Adds support for 2.6 BigDecimal and ruby standard library Set datetype.
+
 ## 2017-04-18 (2.1.0)
  * Allow passing of `decimal_class` option to specify a class as which to parse
    JSON float numbers.
 ## 2017-03-23 (2.0.4)
  * Raise exception for incomplete unicode surrogates/character escape