Add 15.6.2 changelog

CHANGELOG.md

@@ -1,3 +1,14 @@
+## 15.6.2 (August 10, 2017)
+
+### React DOM
+
+* Fix a bug where modifying document.documentMode would trigger IE detection in other browsers, breaking change events ([@aweary](https://github.com/aweary) in [#10032](https://github.com/facebook/react/pull/10032)
+* CSS Columns are treated as unitless numbers ([@aweary](https://github.com/aweary) in [#10115](https://github.com/facebook/react/pull/10115)
+* Fix bug in QtWebKit when wrapping synthetic events in proxies ([@walrusfruitcake](https://github.com/walrusfruitcake) in [#10115](https://github.com/facebook/react/pull/10011)
+* Prevent event handlers from recieving extra argument (dev only) ([@aweary](https://github.com/aweary) in [#10115](https://github.com/facebook/react/pull/8363)
+* Fix cases where onChange would not fire with defaultChecked on radio inputs ([@jquense](https://github.com/jquense) in [#10156](https://github.com/facebook/react/pull/10156))
+* Add support for controlList attribute to DOM property whitelist ([@nhunzaker](https://github.com/nhunzaker) in [#9940](https://github.com/facebook/react/pull/9940))
+
 ## 15.6.1 (June 14, 2017)
 
 ### React DOM
@@ -1193,4 +1204,4 @@ Each of these changes will continue to work as before with a new warning until t
 
 ## 0.3.0 (May 29, 2013)
 
-* Initial public release
+* Initial public release