>>> I had the idea of getting a snapshot of the entire ZODB for a given
>>> transaction serial number but I don't know how to get it. Is this
> It is possible (by means of a historical connection) and I posted
> relevant code some time ago. Search the archive for "HistoryJar".
Sorry, Google gets 0 hits on HistoryJar. Maybe this is what you have in
mind (on the Zope-CMF list a couple years ago)?
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