v2.0.0
- dart sdk updated: >=2.12.0 <3.0.0 (null safety)
- web support
- useDefaultLogger: default as false
- fix: accepting non-maps types on the "body" field of an update request
- other adjustments/fixes
- documentation and README changes
- code refactoring
- unit tests added
- examples updated to null safety
- new dependencies in pubspec.yaml