[Cosmo-dev] Re: changing the format of modification recurrence-ids in eim

[Morgen Sagen]

On May 8, 2007, at 5:49 PM, Brian Moseley wrote:

> On 5/8/07, Grant Baillie <grant at osafoundation.org> wrote:
>
>> FWIW, I think Chandler clients would have to understand (at least
>> temporarily) both old and new formats, or dump and reload will be
>> broken and that will make me cry.
>
> really?

> are you trying
> to maintain complete compatibility across checkpoints?

Sure, as much as possible we try to keep people's existing dump files  
usable by newer versions of Chandler.  I think in this case it should  
be easy for Chandler to support both formats since parsing/generating  
them is limited to two methods.  What will *not* work, however, would  
be if Cosmo started using the new format for a previously published  
collection.  So I think we would require that the server-side  
collections be wiped out and that Chandler republish them.