0.12.2.1
* Refactor in a few views to keep compatibility with MonadFail changes.

0.12.2.0
* Loosen dependencies.

0.12.1.1
* Add missing test suite files to package.

0.12.1.0
* Backwards compatibility fixes for versions of base < 4.8.

0.12.0.0
* Support snap 1.0. This drops support for some older versions of snap.