FogBugz' core is still in Wasabi, but nearly all new code, including one hell of a release coming out soon, is in C#. The Wasabi core is gradually dwindling in

FogBugz' core is still in Wasabi, but nearly all new code, including one hell of a release coming out soon, is in C#. The Wasabi core is gradually dwindling into an API shell, which will itself probably disappear at some point in the future. If you prefer to think of it this way: on any given FogBugz page load, you'll hit Wasabi, but the time spent in Wasabi will be increasingly tiny. Kiln is pure C#/Python, Trello is pure CoffeeScript, and so on. Wasabi solved a porting issue. It wasn't designed for and isn't used for new stuff.