### Added - Support transforming a value before validating it ([#26](https://github.com/nesk/akkurate/issues/26)) - New constraint to ensure a collection doesn't contain duplicated elements ([#28](https://github.com/nesk/akkurate/issues/28)) - New constraints to check if a value is an instance of some type ([#27](https://github.com/nesk/akkurate/issues/27)) - New accessors to easily validate a specific index of a collection ([#29](https://github.com/nesk/akkurate/issues/29))