What's Changed
* Fix warnings by loganbvh in https://github.com/loganbvh/py-tdgl/pull/70
* Save version info with Solution by loganbvh in https://github.com/loganbvh/py-tdgl/pull/72
* Allow epsilon < -1 by loganbvh in https://github.com/loganbvh/py-tdgl/pull/73
* Convert to scipy.sparse.csc_matrix for PyPardiso by loganbvh in https://github.com/loganbvh/py-tdgl/pull/75
* Improve Parameter serialization by loganbvh in https://github.com/loganbvh/py-tdgl/pull/76
**Full Changelog**: https://github.com/loganbvh/py-tdgl/compare/v0.8.0...v0.8.1