I was browsing through the archives looking for some more
information about the rumors that there is some low-level Blob
support coming for the ZODB. Is there maybe a wiki or
something for information about progress on that?
Anyway, I noticed that there were some questions regarding
rolling back changes made to the ZODB; I had the same
issue 3-4 weeks ago and the solution to that is here
it allows one to roll back changes made to a given date; it
isn't well tested but it worked for us. It is neatly integrated
into the Zope system as a monkey patch and if someone
wants to include it into the main Zope distro we can give
it away under the ZPL or something like that.
For more information about ZODB, see the ZODB Wiki:
ZODB-Dev mailing list - ZODB-Dev@zope.org