Lennart Regebro wrote:
On the Paris sprint, one thing that was noted was how ironic it was
that the release of 2.8, which includes support for the new
recommended development paradigm, was held up becuase we neeeded to
support an old non-recommended one. :-)


It boils down to backward compatibility. Backward compatibility is important. People aren't going to use our platform if it keeps changing. in backward incompatible ways without reletively smooth transition tools. We can't simply drop such a critical feature just because we don't want to maintain it. Heck, I'd love to drop version support from ZODB, but I'm not going to until I can offer a replacement to the people who depend on versions today.


Anyway, my main question is: You who are using ZClasses, can't you just stay on Zope2.8 or 2.9, if Zope 2.10 would not contain ZClass support? The main features of 2.8 is support for the component architecture,

For many people, the main features of 2.8 are multi-version concurrency control and better garbage collection.

> and for zope 2.9 and 2.10 this will be even more true:
there will most likely be very few new features besides this.

I wouldn't assume that. People continue to do interesting things on this platform. In any case, if we put people in the place where they couldn't (in a practical, rather than theoretical sense) migrate from a particular version, then we'd have to consider maintaining that version longer that we otherwise would, if only to give people bug fixes (especially security fixes).

> With 2.9
or 2.10 the idea is that you can use both  ZClasses, *and* write
products that work under Zope3. I'm not even sure there will be a
2.10, and in any case you won't really have much need of it.

I'd be very surprised if there was not a Zope 2.10, or even a Zope 2.11.

Jim
--
Jim Fulton           mailto:[EMAIL PROTECTED]       Python Powered!
CTO                  (540) 361-1714            http://www.python.org
Zope Corporation     http://www.zope.com       http://www.zope.org

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