> It means that Haskell is almost never something I can expect a lot from, but a weird combination of extensions changing to "non-standard" behaviours. I can't

> It means that Haskell is almost never something I can expect a lot from, but a weird combination of extensions changing to "non-standard" behaviours. I can't think of a weird combination of behaviors from extensions that would change semantics... maybe it's because I don't use that many extensions usually. When I do they are related to type level programming and all they seem to affect is type inference.