Update CHANGELOG.md

Author: byronz

CHANGELOG.md

@@ -3,9 +3,12 @@ All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## UNRELEASED
+
 ### Fixed
 - Fixed problems with `Graph` components leaking events and being recreated multiple times if declared with no ID [#604](https://github.com/plotly/dash-core-components/pull/604)
 
+- Fixed problem with `DatePickerRange` component about `clearable` not working [#614](https://github.com/plotly/dash-core-components/issues/614) and [#594](https://github.com/plotly/dash-core-components/issues/594)
+
 ### Updated
 - Upgraded plotly.js to 1.49.4 [#612](https://github.com/plotly/dash-core-components/issues/612)
   - Patch releases [1.49.4](https://github.com/plotly/plotly.js/releases/tag/v1.49.4), [1.49.3](https://github.com/plotly/plotly.js/releases/tag/v1.49.3), [1.49.2](https://github.com/plotly/plotly.js/releases/tag/v1.49.2)