Changelog of @hackage/either 3.4.1

3.4.1

• Trustworthy despite UndecidableInstances

3.4

• Delegate fail to the underlying Monad, rather than error.

3.3

• Inverted roles between Semigroup and Alt. This let us write Alternative and MonadPlus instances that are compatible.
• Removed the Functor constraint on most instances in exchange for incurring a Monad constraint on Traversable. EitherT is after all, a Monad transformer first and foremost.

3.2

• Changed the Semigroup to use a Semigroup to combine Left branches. Left Alt untouched, so you can mix and match.

3.1

• Added instances for mtl classes and MonadRandom.
• The meaning of mapEitherT has changed to match mapErrorT in the mtl. The old mapEitherT is now bimapEitherT.

3.0.3

• Started CHANGELOG