Stop the deprecation of Data.Monoid.{First,Last}

[Simon Jakobi]

Hi Keith,

Pzlease see https://gitlab.haskell.org/ghc/ghc/issues/17859, and feel
free to comment there.

Cheers,
Simon

Am Di., 28. Apr. 2020 um 15:20 Uhr schrieb Keith <keith.wygant at gmail.com>:
>
> Apropos of this, can we get flexible instances for Compose?
>
> It seems like there's some agreement that ignoring the composition is the most useful way to generate fully saturated instances (since requiring e.g. 'composition of a monoid with semigroup' is more useful than 'composition of a monoid with a monoid').
> —
> Sent from my phone with K-9 Mail.
>
> On April 25, 2020 10:56:35 AM EDT, Simon Jakobi via Libraries <libraries at haskell.org> wrote:
>>
>> Thanks for the feedback, everyone! :)
>>
>> Since option (C) received the most support, I opened an MR to implement it:
>>
>> https://gitlab.haskell.org/ghc/ghc/-/merge_requests/3154
>>
>> Once it is merged, I will make an announcement of this change, as
>> requested on r/haskell:
>>
>> https://www.reddit.com/r/haskell/comments/g3glwn/migration_path_for_last_c/fnrfzf1/
>>
>> Cheers,
>> Simon
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