0.3 [2019.05.10]
----------------
* `jerks` now has a `MonadFail` constraint instead of just `Monad`.

0.2.5
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* Add `Semigroup` instance for `Jacket`.

0.2.4
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* Support `doctest-0.12`

0.2.3
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* Revamp `Setup.hs` to use `cabal-doctest`. This makes it build
  with `Cabal-2.0`, and makes the `doctest`s work with `cabal new-build` and
  sandboxes.

0.2.2
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* Fix compilation of tests with `stack`

0.2.1
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* Migrate zipper benchmarks from `lens`

0.1
---
* Repository initialized