- Add support for Python 3.4, 3.5, 3.6 and PyPy. Update minimum dependency versions appropriately.
3.8.0
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- Remove include of ``zope.app.zopeappgenerations`` that is not useful unless upgrading a database older than Zope 3.4. This cuts the last dependency on ``zope.app.authentication`` from the ZTK.
3.7.1
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- Move include of ``zope.dublincore.browser`` here from ``zope.dublincore`` (LP: 590668).