0.6.1
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* Update dependencies

0.6
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* Removed `self`/`selfM`. Use `pure` and `return`.

0.5
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* Updated dependencies
* Added `uninterruptiblMask` to the `MonadCatch` instance.

0.4.1
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* Build fixes for GHC < 7.6

0.4
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* Added `MonadCatch` instance.

0.3.1
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* Marked the package `Trustworthy`.