- Stable null safety release.
- Require Dart 2.12.0.
- Require Dart 2.0.0.
- Fixed Tuple7's operator==.
- Prepare for Dart 2 stable.
- Fix all strong-mode warnings and errors.
- Remove _hash function and use quiver_hashcode package instead.
- Add fromList factory constructor.
- Add Tuple6 and Tuple7 classes.
- Add toList method.
- Rename PersistentTuple classes to Tuple; remove Tuple classes.
- Rename each iN item to itemN.
- Rename setIN to withItemN.
- Fix a bug in == operator of PersistentTuple classes.
- Add operator == and hashCode to classes, so that tuples may be used as keys in hashes.
- Initial release.