I would be thankful if you use the development version of PIO Core. It's very stable and you should not have any problems with it.
This should help us to be informed about any critical changes in PIO Core which can affect this project. Please report us any issues if they are related to PIO Core.
5.1.4 20170601
* Removed pre-compiled versions from repository as they are available
within the release
* Changed HUE Device type to color supporting version (#464)
* Fix compile error when BE_MINIMAL is selected (#467, #476)
* Add multiple compiled versions to release using updated Travis script
and platformio.ini (#467)