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This release documents :ref:`the previously undocumented phases feature <phases>`,
making it part of the public API. It also updates how the example
database is used. Principally:
* The :obj:`~hypothesis.Phase.reuse` phase will now correctly control whether examples
from the database are run (it previously did exactly the wrong thing and
controlled whether examples would be *saved*).
* Hypothesis will no longer try to rerun *all* previously failing examples.
Instead it will replay the smallest previously failing example and a
selection of other examples that are likely to trigger any other bugs that
will found. This prevents a previous failure from dominating your tests
unnecessarily.
* As a result of the previous change, Hypothesis will be slower about clearing
out old examples from the database that are no longer failing (because it can
only clear out ones that it actually runs).