## Changes in 0.11.1 [2020.01.27]
- This coincides with the `base-compat-0.11.1` release. Refer to the
[`base-compat` changelog](https://github.com/haskell-compat/base-compat/blob/master/base-compat/CHANGES.markdown#changes-in-0111-20200127)
for more details.
## Changes in 0.11.0 [2019.09.06]
- Reexport `MonadFail(fail)` from `Prelude.Compat` and `Control.Monad.Compat`.
Because `Prelude.Compat.fail` now corresponds to the `fail` from `MonadFail`
instead of `Monad`, some care is required to implement `Monad.fail` on
pre-8.8 versions of GHC. The following template is recommended:
```haskell
import Prelude.Compat
import qualified Control.Monad as Monad
import qualified Control.Monad.Fail as Fail
data Blah a = ...
instance Functor Blah where ...
instance Applicative Blah where ...
instance Monad.Monad Blah where
(>>=) = ...
#if !(MIN_VERSION_base(4,13,0))
fail = Fail.fail
#endif
instance Fail.MonadFail Blah where
fail = ...
```
This approach is also backwards-compatible with previous releases of
`base-compat-batteries`.
- Introduce the `Data.Type.Equality.Compat` module, which
reexports `Data.Type.Equality` from `base` (if using a sufficiently recent
version of GHC) or the `type-equality` library (if using an old GHC).
- This coincides with the `base-compat-0.11.0` release. Refer to the
[`base-compat` changelog](https://github.com/haskell-compat/base-compat/blob/master/base-compat/CHANGES.markdown#changes-in-0110-20190906)
for more details.
## Changes in 0.10.5 [2018.10.18]
- This coincides with the `base-compat-0.10.5` release. Refer to the
[`base-compat` changelog](https://github.com/haskell-compat/base-compat/blob/master/base-compat/CHANGES.markdown#changes-in-0105-20181018)
for more details.
## Changes in 0.10.4 [2018.07.03]
- Add a `SafeHaskellSpec` test which ensures that certain modules (such as
`Prelude.Compat`) can be imported in the presence of `Safe`.
- This coincides with the `base-compat-0.10.4` release. Refer to the
[`base-compat` changelog](https://github.com/haskell-compat/base-compat/blob/master/base-compat/CHANGES.markdown#changes-in-0104-20180703)
for more details.
## Changes in 0.10.3 [2018.07.02]
- This coincides with the `base-compat-0.10.3` release. Refer to the
[`base-compat` changelog](https://github.com/haskell-compat/base-compat/blob/master/base-compat/CHANGES.markdown#changes-in-0103-20180702)
for more details.
## Changes in 0.10.2 [2018.07.02]
- Sync with `base-4.12`/GHC 8.6
- Introduce the `Data.Functor.Contravariant.Compat` module, which
reexports `Data.Functor.Contravariant` from `base` (if using GHC 8.6 or
later) or the `contravariant` library (if using an earlier version of GHC).
- This coincides with the `base-compat-0.10.2` release. Refer to the
[`base-compat` changelog](https://github.com/haskell-compat/base-compat/blob/master/base-compat/CHANGES.markdown#changes-in-0102-20180702)
for more details.
## Changes in 0.10.1 [2018.04.10]
- Add `Data.List.NonEmpty.Compat`.
- Reexport `(Data.Semigroup.<>)` from `Data.Monoid.Compat`.
- Tighten lower bounds of compat package dependencies.
- This coincides with the `base-compat-0.10.1` release. Refer to the
[`base-compat` changelog](https://github.com/haskell-compat/base-compat/blob/master/base-compat/CHANGES.markdown#changes-in-0101-20180410)
for more details.
## Changes in 0.10.0 [2018.04.05]
- Sync with `base-4.11`/GHC 8.4
- This coincides with the `base-compat-0.10` release. Refer to the
[`base-compat` changelog](https://github.com/haskell-compat/base-compat/blob/master/base-compat/CHANGES.markdown#changes-in-0100-20180405)
for more details.