deepseq-1.5.2.0: changelog.md
# Changelog for [`deepseq` package](http://hackage.haskell.org/package/deepseq)
## Upcoming
## 1.5.2.0
* Deprecate function instance of NFData
([#16](https://github.com/haskell/deepseq/issues/16), [#109](https://github.com/haskell/deepseq/issues/109))
## 1.5.1.0
* Add Unit monoid with `seq`
([#18](https://github.com/haskell/deepseq/issues/18), [#105](https://github.com/haskell/deepseq/issues/105))
* Drop the dependency on `array`
([#102](https://github.com/haskell/deepseq/issues/102), [#107](https://github.com/haskell/deepseq/issues/107))
## 1.5.0.0
* Add quantified superclasses to NFData(1,2)
([#88](https://github.com/haskell/deepseq/issues/88))
* Alter superclasses for Data.Functor.{Sum, Product}
([#95])(https://github.com/haskell/deepseq/pull/95)
* Drop support for GHC < 8.6
([#94](https://github.com/haskell/deepseq/pull/94))
* List fusion in `instance NFData [a]` reduces allocations
([#99](https://github.com/haskell/deepseq/pull/99))
## 1.4.8.1
* Adapt the rename of the Solo constructor to MkSolo
([#87](https://github.com/haskell/deepseq/pull/87))
* Add instances for the indexed `TypeRep`, along with `Module`.
([#83](https://github.com/haskell/deepseq/pull/83))
## 1.4.8.0
* Add `NFData` instance for `MutableByteArray`
([#84](https://github.com/haskell/deepseq/pull/84))
* Change RnfArgs to be a data family
([#85](https://github.com/haskell/deepseq/pull/85))
## 1.4.7.0
* Add instances for `Solo` (GHC-9)
([#69](https://github.com/haskell/deepseq/pull/69))
* Add once again `infixr 0 deepseq`
([#56](https://github.com/haskell/deepseq/pull/56), [#74](https://github.com/haskell/deepseq/issues/74))
* Add `NFData` instance for `ByteArray`
([#65](https://github.com/haskell/deepseq/pull/65))
* Drop support for GHC 7 to simplify CPP
([#75](https://github.com/haskell/deepseq/pull/75))
## 1.4.6.1
* Revert `infixr 0 deepseq`; this does not appear in the version of `deepseq` pinned to GHC 9.2.1
## 1.4.6.0
* Bundled with GHC 9.2.1
* Remove instances for Data.Semigroup.Option for GHC >= 9.2
([#62](https://github.com/haskell/deepseq/pull/62))
* Set the `infixr 0 deepseq` to be consistent with `seq`
([#56](https://github.com/haskell/deepseq/pull/56))
## 1.4.5.0
* Add `GNFData` for URec
This will enable deriving NFData instances for unboxed types
## 1.4.4.0 *Sep 2018*
* Bundled with GHC 8.6.1
* Add `NFData` instance for `MaskingState`
([#38](https://github.com/haskell/deepseq/pull/38))
* Define the `NFData` instances for `TypeRep` and `TyCon` on all supported
versions of `base`, not just 4.8 and later
([#40](https://github.com/haskell/deepseq/pull/40))
## 1.4.3.0 *Apr 2017*
* Bundled with GHC 8.2.1
* Drop support for GHC 7.0 & GHC 7.2
* Changed strictness behavior of generic `NFData` instances for
constructor-less data types. Before, a generic `rnf`
implementation would always `error` on a data type with no
constructors. Now, it will force the argument, so if the argument
is a diverging computation, a generic `rnf` implementation will
actually trigger the diverging computation.
([#19](https://github.com/haskell/deepseq/issues/19))
* Add new `rwhnf` function defined as `rwhnf !_ = ()`
([#3](https://github.com/haskell/deepseq/issues/3))
* Add `(<$!!>) :: (Monad m, NFData b) => (a -> b) -> m a -> m b`
([#13](https://github.com/haskell/deepseq/issues/13))
* Add `NFData1` and `NFData2` type classes
([#8](https://github.com/haskell/deepseq/issues/8))
* Add `NFData` instance for `Down` for `base` versions prior to
`base-4.6.0` which didn't yet export it via `Data.Ord`
([#28](https://github.com/haskell/deepseq/pull/28))
* Add `NFData` instance for `Foreign.C.Types.CBool`
([#33](https://github.com/haskell/deepseq/pull/33))
* Add `NFData` instance for `Ordering`
([#25](https://github.com/haskell/deepseq/pull/25))
* Add `NFData1` and `NFData` instances for `Data.Functor.{Compose,Sum,Product}`
([#30](https://github.com/haskell/deepseq/pull/30))
* Add `NFData`, `NFData1`, and `NFData2` instances for `(:~:)` and `(:~~:)`
from `Data.Type.Equality`
([#31](https://github.com/haskell/deepseq/issues/31))
## 1.4.2.0 *Apr 2016*
* Bundled with GHC 8.0.1
* New instances for types provided by `semigroups` prior to
`base-4.9` (i.e. `NonEmpty`, `Min`, `Max`, `Arg`,
`Semigroup.First`, `Semigroup.Last`, `WrappedMonoid`, and
`Option`) ([#11](https://github.com/haskell/deepseq/issues/11))
* New instances for `Ptr` and `FunPtr`
([#10](https://github.com/haskell/deepseq/pull/10))
* New instances for `IORef`, `STRef`, and `MVar`
([#6](https://github.com/haskell/deepseq/issues/6))
* New instance for `ExitCode`
([#4](https://github.com/haskell/deepseq/issues/4))
* New instances for `CallStack` and `SrcLoc`
* Make `NFData (Proxy a)` instance poly-kinded
## 1.4.1.2 *Aug 2015*
* Avoid the broken combination of GHC-7.2 with `array>=0.4`
([#7](https://github.com/haskell/deepseq/pull/7))
## 1.4.1.1 *Mar 2015*
* Bundled with GHC 7.10.1
* Drop redundant `ghc-prim` dependency
## 1.4.1.0 *Mar 2015*
* Drop redundant constraints from a few `NFData` instances (if
possible for a given `base` version)
## 1.4.0.0 *Dec 2014*
* Switch to Generics based `DefaultSignature` `rnf` method
implementation (based on code from `deepseq-generics`)
**Compatibility Note**: if you need the exact default-method
semantics of `deepseq` prior to 1.4, replace occurences of
instance NFData XYZ
by
instance NFData XYZ where rnf x = seq x ()
* New `NFData` instances for `base` types:
- `Control.Applicative.Const`
- `Control.Applicative.ZipList`
- `Control.Concurrent.ThreadId`
- `Data.Functor.Identity.Identity`
- `Data.Monoid.{Dual,First,Last,Any,All,Sum,Product}`
- `Data.Ord.Down`
- `Data.Proxy.Proxy`
- `Data.Typeable.Internal.TyCon`
- `Data.Typeable.Internal.TypeRep`
- `Data.Unique.Unique`
- `Data.Void.Void`
- `GHC.Fingerprint.Type.Fingerprint`
- `Numeric.Natural.Natural`
- `System.Mem.StableName.StableName`
- `Foreign.C.Types.C*`
## 1.3.0.2 *Nov 2013*
* Bundled with GHC 7.8.1
* Update package description to Cabal 1.10 format
* Add support for GHC 7.8
* Drop support for GHCs older than GHC 7.0.1
* Add `/since: .../` annotations to Haddock comments
* Add changelog
## 1.3.0.1 *Sep 2012*
* No changes
## 1.3.0.0 *Feb 2012*
* Add instances for `Fixed`, `a->b` and `Version`
## 1.2.0.1 *Sep 2011*
* Disable SafeHaskell for GHC 7.2
## 1.2.0.0 *Sep 2011*
* New function `force`
* New operator `$!!`
* Add SafeHaskell support
* Dropped dependency on containers
## 1.1.0.2 *Nov 2010*
* Improve Haddock documentation
## 1.1.0.1 *Oct 2010*
* Enable support for containers-0.4.x
## 1.1.0.0 *Nov 2009*
* Major rewrite
## 1.0.0.0 *Nov 2009*
* Initial release