v2.0.9 changelog

Author: chriddyp

CHANGELOG.md

@@ -2,7 +2,10 @@
 All notable changes to this project will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
-## [Unreleased]
+## [2.0.9] - 2017-05-30
+### Fixed
+- Fixes issue [https://github.com/plotly/plotly.py/issues/721](https://github.com/plotly/plotly.py/issues/721). There was an issue when running `import plotly` with old versions of the `decorator` package. We now require installations to use at least version `4.0.6` of the `decorator` package. See [https://github.com/micheles/decorator/blob/master/CHANGES.md](https://github.com/micheles/decorator/blob/master/CHANGES.md) for the `decorator` package changelog.
+
 ### Added
 - 'sort' parameter to `FF.create_violin` to control whether violin plots are sorted alphabetically.