What's Changed
* chore: drop Python 3.6 to 3.8 and add Python 3.10 and 3.11 in https://github.com/HathorNetwork/python-hathorlib/pull/25
* feat: add nano contract class with serializer/deserializer methods in https://github.com/HathorNetwork/python-hathorlib/pull/24
**Full Changelog**: https://github.com/HathorNetwork/python-hathorlib/compare/v0.3.0...v0.4.0