What's Changed
* Add support for parsing data from a memory buffer by glopesdev in https://github.com/harp-tech/harp-python/pull/37
* Allow formatting data as binary protocol messages by glopesdev in https://github.com/harp-tech/harp-python/pull/40
* Ensure datetime index when epoch is specified by glopesdev in https://github.com/harp-tech/harp-python/pull/41
* Use index suffix for array register column labels by glopesdev in https://github.com/harp-tech/harp-python/pull/43
* Refactor IO API for consistency and symmetry by glopesdev in https://github.com/harp-tech/harp-python/pull/44
**Full Changelog**: https://github.com/harp-tech/harp-python/compare/v0.3.0...v0.4.0