Drastic Prelude changes imminent

[Henning Thielemann]

On Tue, 27 Jan 2015, Herbert Valerio Riedel wrote:

> Ironically, the AMP-related warnings in GHC 7.8 weren't very effective
> at getting noticed timely in order to have Hackage ready for the actual
> AMP-changes occurring in GHC 7.10. By far the most breakages[1] I
> encountered (and reported) over the last weeks in
> popularly-depended-upon packages were due to missing Functor/Applicative
> instances. It'd be interesting to know why those warnings weren't
> acted upon during 2014.
>
> Otoh, I don't have numbers how many packages were actually fixed up
> *thanks* to the GHC 7.8 warnings...

I have added Applicative instances whereever suggested by GHC-7.8, but I 
have not recompiled all my packages since then and I have not released all 
updated packages. Maybe a year is just too short?