* Backed out unintended changes to pkg_resources, restoring removal of deprecated imp module (`ref <https://bitbucket.org/pypa/setuptools/commits/f572ec9563d647fa8d4ffc534f2af8070ea07a8b#comment-1881283>`_).
17.1
Not secure
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* Issue 380: Add support for range operators on environment marker evaluation.
17.0
Not secure
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* Issue 378: Do not use internal importlib._bootstrap module. * Issue 390: Disallow console scripts with path separators in the name. Removes unintended functionality and brings behavior into parity with pip.
16.0
Not secure
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* BB Pull Request 130: Better error messages for errors in parsed requirements. * BB Pull Request 133: Removed ``setuptools.tests`` from the installed packages. * BB Pull Request 129: Address deprecation warning due to usage of imp module.
15.2
Not secure
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* Issue 373: Provisionally expose ``pkg_resources._initialize_master_working_set``, allowing for imperative re-initialization of the master working set.
15.1
Not secure
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* Updated to Packaging 15.1 to address Packaging 28. * Fix ``setuptools.sandbox._execfile()`` with Python 3.1.