[Haskell-cafe] [ANN] mtl-2.3

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Congratulations to the new MTL maintainers!

Le 07/05/2022 à 22:37, Emily Pillmore a écrit :
> Hello Everyone,
>
> mtl-2.3 has been released. This release marks the first major version 
> for the library in a long time, and addresses some longstanding issues 
> that have taken years to fix. As a result, this will be a *breaking 
> update* for many. Please review the following changelog notes:
>
>   * Added instances
>     for|Control.Monad.Trans.Writer.CPS|and|Control.Monad.Trans.RWS.CPS|from|transformers|0.5.6
>     and add|Control.Monad.Writer.CPS|and|Control.Monad.RWS.CPS|.
>   * |Control.Monad.Cont|now re-exports|evalCont|and|evalContT|.
>   * Add|tryError|,|withError|,|handleError|,
>     and|mapError|to|Control.Monad.Error.Class|, and re-export
>     from|Control.Monad.Except|.
>   * Remove|Control.Monad.List|and|Control.Monad.Error|.
>   * Remove instances of deprecated|ListT|and|ErrorT|.
>   * Remove re-exports of|Error|.
>   * Add instances
>     for|Control.Monad.Trans.Accum|and|Control.Monad.Trans.Select
>     <http://control.monad.trans.select/>|.
>   * Require GHC 8.6 or higher, and|cabal-install|3.0 or higher.
>   * Require|transformers-0.5.6|or higher.
>   * Add|Control.Monad.Accum|for the|MonadAccum|type class, as well as
>     the|LiftingAccum|deriving helper.
>   * Add|Control.Monad.Select <http://control.monad.select/>|for
>     the|MonadSelect|type class, as well as the|LiftingSelect|deriving
>     helper.
>
>
> A big thank you to all contributors and commentators, and a special 
> thanks to Koz for picking up maintenance so swiftly.
>
> Happy hacking,
> Emily
>
>
>
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