# Changelog for the [`ghc-typelits-extra`](http://hackage.haskell.org/package/ghc-typelits-extra) package
# 0.2.4 *January 4th 2018*
* Add support for GHC-8.4.1-alpha1
# 0.2.3 *May 15th 2017*
* Support GHC 8.2
* `Max`, `Min`, `GCD`, and `LCM` now have a commutativity property [#9](https://github.com/clash-lang/ghc-typelits-extra/issues/9)
* Reduce `GCD 0 x` to `x` [#9](https://github.com/clash-lang/ghc-typelits-extra/issues/9)
* Reduce `GCD 1 x` to `1` [#9](https://github.com/clash-lang/ghc-typelits-extra/issues/9)
* Reduce `GCD x x` to `x` [#9](https://github.com/clash-lang/ghc-typelits-extra/issues/9)
* Reduce `LCM 0 x` to `0` [#9](https://github.com/clash-lang/ghc-typelits-extra/issues/9)
* Reduce `LCM 1 x` to `x` [#9](https://github.com/clash-lang/ghc-typelits-extra/issues/9)
* Reduce `LCM x x` to `x` [#9](https://github.com/clash-lang/ghc-typelits-extra/issues/9)
* Reduce `Max (0-1) 0` to `0` [#10](https://github.com/clash-lang/ghc-typelits-extra/issues/10)
* Reduce `Min (0-1) 0` to `0 - 1` [#10](https://github.com/clash-lang/ghc-typelits-extra/issues/10)
* Fixes bugs:
* Solver turns LCM into GCD [#8](https://github.com/clash-lang/ghc-typelits-extra/issues/8)
* Solver turns Max into Min
# 0.2.2 *January 15th 2017*
* Reduce `Min n (n+1)` to `n`
* Reduce `Max n (n+1)` to `n+1`
* Reduce cases like `1 <=? Div 18 6` to `True`
* Add a type-level division that rounds up: `type DivRU n d = Div (n + (d - 1)) d`
* Add a type-level `divMod` : `DivMod :: Nat -> Nat -> '(Nat, Nat)`
# 0.2.1 *September 29th 2016*
* Reduce `Max n n` to `n`
* Reduce `Min n n` to `n`
# 0.2 *August 19th 2016*
* New type-level operations:
* `Max`: type-level `max`
* `Min`: type-level `min`
* `Div`: type-level `div`
* `Mod`: type-level `mod`
* `FLog`: floor of logBase
* `Log`: exact integer logBase (i.e. where `floor (logBase b x) ~ ceiling (logBase b x)` holds)
* `LCM`: type-level `lcm`
* Fixes bugs:
* `CLog b 1` doesn't reduce to `0`
## 0.1.3 *July 19th 2016*
* Fixes bugs:
* Rounding error in `CLog` calculation
## 0.1.2 *July 8th 2016*
* Solve KnownNat constraints over CLog and GCD, i.e., KnownNat (CLog 2 4)
## 0.1.1 *January 20th 2016*
* Compile on GHC 8.0+
## 0.1 *October 21st 2015*
* Initial release