2.4
===

Add ``testing.assert_distinct_covered``.

2.3
===

Add ``query.compat_explain``, providing forward compatibility
for MongoDB 3.0 `explain changes
<http://docs.mongodb.org/v3.0/reference/explain-results/>`_.

``testing.assert_covered`` uses compat_explain for MongoDB 3.0
compatibility.

2.2
===

Add query module with ``project`` function.

2.0
===

Removed references to ``jaraco.modb``. Instead, allow the Sessions object to
accept a ``codec`` parameter. Applications that currently depend on the
``use_modb`` functionality must instead use the following in the config::

    "sessions.codec": jaraco.modb

1.0
===

Initial release, introducing ``sessions`` module based on ``yg.mongodb`` 2.9.
