mabshoff wrote:
> On Jun 28, 2:10 pm, Carl Witty <[EMAIL PROTECTED]> wrote:
>> On Jun 28, 1:55 pm, Carl Witty <[EMAIL PROTECTED]> wrote:
> 
> Hi Carl,
> 
>>> During Developer Days 1, I announced that I wanted to rewrite
>>> fast_float to support evaluation over more types, to handle common
>>> subexpressions, and to handle conditional expressions.  I've started
>>> this project by writing a new version of the fast_eval.pyx module
>>> docstring, and I'm wondering if anybody has any comments on it.
>> Another question about the rewrite: does anybody mind if I break
>> unpickling of old pickled fast_float objects?  I can make them work,
>> but it would require keeping around hundreds of lines of code that I'd
>> rather get rid of.
> 
> I believe the current policy is to preserve the old pickles since we
> now have the pickle jar to do regression testing. And I agree with
> that policy since we must avoid breaking backward compatibility at all
> (reasonable) cost. Since we have versioned pickles would that cause
> massive pain for you?


What is the policy on breaking backward compatibility of pickling at 
major releases (e.g., 4.0)?


Jason


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