mtl-2.1.3.1: CHANGELOG.markdown
2.1.3.1 ------- * Avoid importing `Control.Monad.Instances` on GHC 7.8 to build without deprecation warnings. 2.1.3 ----- * Removed the now-irrelevant `Error` constraint from the `MonadError` instance for `Either e`.
2.1.3.1 ------- * Avoid importing `Control.Monad.Instances` on GHC 7.8 to build without deprecation warnings. 2.1.3 ----- * Removed the now-irrelevant `Error` constraint from the `MonadError` instance for `Either e`.