docs(changelog): update changelog [ci skip]

CHANGELOG.md

@@ -1,5 +1,22 @@
 # Change Log
 
+## [v0.63.4](https://github.com/Semantic-Org/Semantic-UI-React/tree/v0.63.4) (2016-12-31)
+[Full Changelog](https://github.com/Semantic-Org/Semantic-UI-React/compare/v0.63.3...v0.63.4)
+
+**Implemented enhancements:**
+
+- Typings: Add Comments from Source Files [\#1075](https://github.com/Semantic-Org/Semantic-UI-React/issues/1075)
+- Consider Adding "container" prop to Grid.js [\#983](https://github.com/Semantic-Org/Semantic-UI-React/issues/983)
+
+**Fixed bugs:**
+
+- Input/Dropdown/Button should not have tab stops when disabled [\#966](https://github.com/Semantic-Org/Semantic-UI-React/issues/966)
+
+**Merged pull requests:**
+
+- fix\(tabIndex\): use -1 when disabled, allow override [\#1100](https://github.com/Semantic-Org/Semantic-UI-React/pull/1100) ([levithomason](https://github.com/levithomason))
+- [email protected] untested ⚠️ [\#1097](https://github.com/Semantic-Org/Semantic-UI-React/pull/1097) ([greenkeeperio-bot](https://github.com/greenkeeperio-bot))
+
 ## [v0.63.3](https://github.com/Semantic-Org/Semantic-UI-React/tree/v0.63.3) (2016-12-30)
 [Full Changelog](https://github.com/Semantic-Org/Semantic-UI-React/compare/v0.63.2...v0.63.3)