================
- Use ``sys._current_frames`` (rather than ``threading.enumerate``)
as base for new thread detection, fixes
`130 <https://github.com/zopefoundation/zope.testrunner/issues/130>`_.
- New option ``--gc-after-test``. It calls for a garbage collection
after each test and can be used to track down ``ResourceWarning``s
and cyclic garbage.
With ``rv = gc.collect()``, ``!`` is output on verbosity level 1 when
``rv`` is non zero (i.e. when cyclic structures have been released),
``[``*rv*``]`` on higher verbosity levels and
a detailed cyclic garbage analysis on verbosity level 4+.
For details, see
`133 <https://github.com/zopefoundation/zope.testrunner/pull/133>`_.
- Allow the filename for the logging configuration to be specified
via the envvar ``ZOPE_TESTRUNNER_LOG_INI``.
If not defined, the configuration continues to be locked for
in file ``log.ini`` of the current working directory.
Remember the logging configuration file in envvar
``ZOPE_TESTRUNNER_LOG_INI`` to allow spawned child processes
to recreate the logging configuration.
For details, see
`134 <https://github.com/zopefoundation/zope.testrunner/pull/134>`_.