----- * removed support for Python 3.5 * added support for Python 3.9 * enabled code coverage in tox * support symengine 0.7.0 * add [OSQP](https://github.com/oxfordcontrol/osqp) as additional solver * add [cbc](https://github.com/coin-or/python-mip) as additional solver
1.4.7
----- * fix: except AttributeError when setting tolerance on cloned Configuration * enable cloning models between solver interfaces that do not support the same set of tolerance parameters