I think the README addresses this question well, if you're familar with Haskell and know what to look for. The main differences are the macro and the fiber syst

I think the README addresses this question well, if you're familar with Haskell and know what to look for. The main differences are the macro and the fiber system for metaprogramming and concurrency respectively; Passerine aims to keep functional programming fun, so you don't need to worry about Monads or Lenses or Contraroutines* (jk) before writing a simple program. * This is an inside joke.