Zope 5.0a1 released

On behalf of Zope developer community I am pleased to announce the release of the first alpha release of the Zope 5 series: 5.0a1

Zope 5 drops support for

  • Python 2.7, it supports Python 3.5 up to 3.8
  • ZServer, it is now WSGI only

To migrate to Zope 5: first migrate to the lastest Zope 4 release.

If your code runs on the WSGI stack without showing deprecations warnings it should also be able to run on Zope 5, too, without changes.

All other changes (besides these non-backwards compatible ones) have been back ported to Zope 4.x.
(We will keep doing so until the final Zope 5 release.)

For details of the changes see https://zope.readthedocs.io/en/latest/changes.html#a1-2020-02-28

To install the new version see https://zope.readthedocs.io/en/latest/INSTALL.html

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Clarifying followup about ZServer support:

There is a separate project underway to port ZServer to Python 3 and make it compatible with the Zope WSGI stack. If and when the project reaches maturity we will help integrate this new ZServer into Zope.

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This probably refers to my Twisted ZServer fork. There has not been progress lately, because I have been off from suitable projects, but it has not been abandoned and my intention is to run our future Python 3 Plone projects on it. That said, there will be major refactoring in my fork once Plone has been migrated to the latest Zope 4.x with restored WebDAV support. Those interested to try it out, can ping me.

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Thanks, yes, I was referring to your fork, to alleviate concerns some users may have about the future of ZServer.

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How do you enable WebDAV support in 5.0a1? Just removing the comment from webdav-source-port in zope.conf does not seem to be suffcient.

Take a look at the documentation please:

https://zope.readthedocs.io/en/latest/operation.html#zope-configuration-reference

Scroll down to the botom, that’s where it explains how to set webdav-source-port and what else you need to do.

Here is the report

Do you think Zope 5 could integrate some of dm.historical in zope? It would be a powerful tool for administrators

Version 2.0
...........

Made compatible with Python 3

Version 1.2
...........

Made compatible with ZODB 3.10

That does not belong into the Zope core. It's good having it but keep the core small.

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As I already said in the issue tracker issue you created for this: Your use case, full WebDAV file system support, has never been supported by the Zope WebDAV code and most likely will never be supported. It can do whatever it did in Zope 2.13. The goals are entirely different here.

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