What's Changed
* Bugfix: remove self, fix register datatype for PelletsBoiler by lein1013 in https://github.com/LavermanJJ/pysolarfocus/pull/22
* Support multiple api versions by LavermanJJ in https://github.com/LavermanJJ/pysolarfocus/pull/23
**Full Changelog**: https://github.com/LavermanJJ/pysolarfocus/compare/v3.4.0...v3.5.0