[ZODB-Dev] ZODB.POSException.ReadConflictError

[Tim Peters]

[Steve Alexander]
> I was being sloppy. I mean persistent objects where the class of the
> object can be defined to use descriptors for its members.

I believe so; Jim would know for sure since he did this part, and maybe
Jeremy knows for sure too.

> Ok. I assume "beta" means "feature freeze".

Yes.

> So, if I want to back-port a feature from ZODB 4, and get that
> shipped with ZODB 3.3, I'll need to act fairly fast.

If you believe the projected dates <wink>.

> What's the ZODB 3.3 branch called?

We don't do ZODB release branches anymore.  ZODB 3.3 final will be cut from
the Zope 2.8 tree, and pre-releases of ZODB 3.3 will be cut from the ZODB3
module in then-current Zope HEAD.  None of the MVCC code lives there yet,
though.  That still needs to be merged from the temporary
ZODB3-mvcc-2-branch development branch.  OTOH, ZODB3-mvcc-2-branch doesn't
contain Jim's persistence changes (they're on Zope HEAD now).

In short, Zope HEAD is the best answer to your question.

> Do you know of any plans to make a ZODB 4 -> ZODB 3.3 storage
> migration script?

I don't, but I don't think I would know of such a plan if there were one --
I haven't been near Zope3 or ZODB4 for months.