# Version 0.3.3
- Improve performance by a lot
- Fix documentation
- Update `itertools` dependency
# Version 0.3.2
- Update dependencies
- Address compiler warnings (Rust 1.46.0)
# Version 0.3.1
- Added license file
# Version 0.3.0
- Update to Rust 2018 (1.35.0)
# Version 0.2.0
- Implemented a writer
- Support attributes in xml tags
- Renamed reader `event` method to `hepeup`
- Separate `xml_header` method for reading xml headers
- Added changelog