[Checkins] [zopefoundation/Zope] ddde3a: - publish version information for Zope 4.2.1

[Jens Vagelpohl]

  Branch: refs/heads/gh-pages
  Home:   https://github.com/zopefoundation/Zope
  Commit: ddde3a57ac2ce77870d3c41069b81429ab1a2d18
      https://github.com/zopefoundation/Zope/commit/ddde3a57ac2ce77870d3c41069b81429ab1a2d18
  Author: Jens Vagelpohl <jens at netz.ooo>
  Date:   2020-02-09 (Sun, 09 Feb 2020)

  Changed paths:
    M README.md
    A releases/4.2.1/constraints.txt
    A releases/4.2.1/requirements-full.txt
    A releases/4.2.1/versions-prod.cfg
    A releases/4.2.1/versions.cfg

  Log Message:
  -----------
  - publish version information for Zope 4.2.1