CHANGELOG.md in esp_sdk-2.1.0 vs CHANGELOG.md in esp_sdk-2.2.0

@@ -1,5 +1,9 @@
-## 2.1.0 - 2015-01-15
+## 2.2.0 - 2016-03-2
+### Added
+- Added the ESP::ScanInterval object to use the new scan interval endpoint on the API
+
+## 2.1.0 - 2016-02-10
 ### Added
 - Implemented searching using `where` on many object.
 - Add external account script.  Run with `esp a`
 - Added ability to set a proxy using either the `http_proxy` environment variable, or setting it manually wiht `ESP.http_proxy = <proxy>`