[2.1.1] - Support more scroll behavior [2.1.0] - Added custom view for month header [2.0.0-nullsafety.1] - Support Null-Safety [1.1.0] - [Make pure package] Remove dartz, rxdart [1.0.3+2] - Unit test comeback [1.0.3+1] - Release 1.0.3+1 Wellcome