# 0.3
* Require `bifunctors-5.2` and `profunctors-5.2`. Add `Invariant(2)` instances
for newly introduced datatypes from those packages.
* Add `ProfunctorFunctor`, `ProfunctorMonad`, `ProfunctorComonad`, `Mapping`,
and `Traversing` instances for `WrappedProfunctor`
* Add `StateVar` as a dependency. Add `Invariant` instances for `StateVar` and
`SettableStateVar`.
* Add `Invariant` instances for `URec` (added to `GHC.Generics` in
`base-4.9.0.0`)
# 0.2.2
* Add `genericInvmap` function (and make it the default implementation of
`invmap` for `Invariant` instances) on GHC 7.2 or later
* Make `Tagged` instance poly-kinded
# 0.2.1
* Add `Foldable` and `Traversable` instances for `WrappedFunctor`
* Fixed build on GHC HEAD
# 0.2
* Support deriving `Invariant` and `Invariant2` instances with Template Haskell
* Added `invmapFunctor`, `invmapContravariant`, `invmap2Bifunctor`, and
`invmap2Profunctor` to make defining `Invmap` and `Invmap2` instances
somewhat easier
* Added `WrappedFunctor`, `WrappedContravariant`, `WrappedBifunctor`, and
`WrappedProfunctor` data types to allow use of `invmap` and `invmap2` for
data types that aren't `Invariant` or `Invariant2` instances.
* Added `Invariant` instances for lazy `ST`, `ArrowMonad`, `Handler`,
`Identity`, `First`, `Last`, `Alt`, `Proxy`, `ArgDescr`, `ArgOrder`, and
`OptDescr`
* Added `Invariant` and `Invariant2` instances for data types in the `array`,
`bifunctors`, `containers`, `profunctors`, `semigroups`, `stm`, `tagged`,
`transformers`, and `unordered-containers` libraries
# 0.1.2
* Add `Invariant` instances for `Dual` and `Endo`
# 0.1.1
* Bump `contravariant` upper version bounds
# 0.1.0
* Initial commit