[Seaside] upgrading methods

[Brad Fuller]

stephane ducasse wrote:
> This gives me the impression that it would be really important to have a 
> protocol
> to make sure that package developer can specify what action should be 
> done on upgrade.
> Doing all the time the same is a clear sign that we are missing something.

YES! Nail on the Head.
Especially since the recipe for updating will most likely change.

-- 
brad fuller
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