------
* `40`_ `BackgroundNoise` now stores sample positions in its output history
* `44`_ fixed a bug in reconstructing muda-output jams files
* `47`_ removed dependency on scikit-learn
* `48`_, `54`_ converted unit tests from nose to py.test
* `49`_ `TimeStretch` and `PitchShift` deformers now support multiple values
* `52`_ added the `Union` class
.. _40: https://github.com/bmcfee/muda/pull/40
.. _44: https://github.com/bmcfee/muda/pull/44
.. _47: https://github.com/bmcfee/muda/pull/47
.. _48: https://github.com/bmcfee/muda/pull/48
.. _49: https://github.com/bmcfee/muda/pull/49
.. _52: https://github.com/bmcfee/muda/pull/52
.. _54: https://github.com/bmcfee/muda/pull/54