From publisher blurb:
As promised due to overwhelming community support during our Kickstarter, Silver Games LLC is proud to present the 4th edition translation for the core races of Everglow, along with the basic pony types, and zebras for extra bonus.
Have fun bringing these races into your fourth edition game. Fourth edition of what, you may be asking, but we cannot say. At least the book is free, so you can discover for yourself at no risk!