Containers and folds

[Johan Tibell]

On Fri, Sep 24, 2010 at 10:51 PM, Thomas Schilling
<nominolo at googlemail.com> wrote:
> On 24 September 2010 21:20, Johan Tibell <johan.tibell at gmail.com> wrote:
>>> - should we really deprecate fold and foldWithKey? It could break
>>>  a lot of code.
>>
>> I think so. Give people a year or so to move over.
>
> I'd prefer two years.  Not everyone is moving as quickly as GHC, and
> containers is a core library.

An alternative would be to see how many hackage libraries would build
after e.g. one year if we removed the function. If there are any, wait
some more, if there are few, remove the functions.

I picked one year as that's equivalent to two HP releases.