From: "Mark Gibsonz" <mngibso@[...].com> 
>  I have a client working on zope 2.3.3.  What are the
>  advantages to upgrading zope to the latest version?

Less bugs, lot's of new neat features?

>  It's likely to be a big job, how can I justify this?

Just read through the doc/CHANGES.txt and see what's in there that could be
good for your client.

If you have many custom Python products, there will be some work in porting
them. The biggest things are the move from Python 1.5.2 to 2.x which gives
you some changes, and the Catalogs have changed quite a lot.

I don't use ZClasses, so I don't know how complicated they are to upgrade.
I've heard both that there is some work involved and that there is no work
involved.

>  What are the risks to upgrading?

None, except that it may take longer than you expect. But it can go faster
too.


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