hnix-0.9.0: CHANGELOG.md

# Changelog

## [0.9.0](https://github.com/haskell-nix/hnix/compare/0.8.0...0.9.0) (2020-06-15)

* Changelog started. Previous release was `0.8.0`. In new release:

* Major breaking:
  * Removed instances due to migration to `haskeline >= 0.8 && < 0.9`:
    * `instance MonadException m => MonadException(StateT(HashMap FilePath NExprLoc) m)`
    * `instance MonadException m => MonadException(Fix1T StandardTF m)`

* Minor:
  * Added support for `GHC 8.4.4, 8.8.3`

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`HNix` uses [PVP Versioning][1].

[1]: https://pvp.haskell.org