gosu began in 2002 as a scripting language called gscript at guidewire software. it was used to configure business logic in guidewire's applications and was more of a simple rule definition language. in its original incarnation it followed ecmascript guidelines. guidewire enhanced the scripting language over the next 8 years, and released gosu 0.7 beta to the community in november 2010. the 0.8 beta was released in december 2010, and 0.8.6 beta was released in mid-2011 with additional typeloaders, making gosu capable of loading xml schema definition files and xml documents as native gosu types. the latest version is 1.10, released in january 2016, along with a new intellij idea editor plugin.