Changelog of @hackage/either 4.1.1

4.1

  • Added instances for MonadBase, MonadBaseControl, and MonadTransControl.

4.0

  • Updated dependencies.

3.4.2

  • Added 'Data.Either.Combinators'.

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