[License-review] For Legacy Approval: Zope Public License v2.1

[Jens Vagelpohl]

Hi,

My name is Jens Vagelpohl and I am release manager for the Zope web application server and many of its add-on packages maintained in the GitHub organization “zopefoundation” at https://github.com/zopefoundation.

Almost all of our products, the oldest starting in the late 1990s, have been published under the Zope Public License, which had been certified by the OSI many years ago. The latest version on file at the OSI is version 2.0, see https://opensource.org/licenses/ZPL-2.0, which has existed since 2001.

The ZPL version 2.0 makes references to Zope Corporation as holding copyrights to code in Zope and related packages. However, after lobbying by the Zope Foundation Zope Corporation assigned code copyrights to the foundation in te mid-2000s. The Zope Public License was rewritten to account for this copyright change and we removed all references to Zope Corporation and released as ZPL version 2.1. The earliest license copies I found in our repositories for version 2.1 are from 2005.

At this point the ZPL version 2.0 hasn’t been used for a decade. All source code had been switched to ZPL 2.1 more than 10 years ago, and Zope Corporation has been defunct for at least as long. I do not know why no foundation representative reached out to the OSI and asked for an update to the published version on the OSI website, even though I was secretary for the Zope Foundation Board of Directors at the time.

I am hereby asking for legacy approval for the Zope Public License version 2.1. I have attached a copy of the license and a copy of the copyright header we attach to all source code files in our repositories.

Thank you for your help!

Jens Vagelpohl
Release Manager, Zope
https://plone.org/community/zope-team


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