What's Changed
- Add tagged union benchmarks by @adriangb in #656
- update to PyO3 0.19.0 by @davidhewitt in #658
- use default allocator by @adriangb in #662
- Allow non-scalar values as tagged union keys by @adriangb in #655
- Uprev version to 0.39.0 by @adriangb in #665
Full Changelog: v0.38.0...v0.39.0