* Add support for os.PathLike by brentyi in https://github.com/brentyi/tyro/pull/37
* Add `return_unknown_args` to `tyro.cli` by JesseFarebro in https://github.com/brentyi/tyro/pull/35
* Add support for PathLike classes & objects with __new__ but no __init__ by JesseFarebro in https://github.com/brentyi/tyro/pull/38
* Smarter matching for default subcommands by brentyi in https://github.com/brentyi/tyro/pull/33
* Add support for variadic arguments, as per 39
* `--tyro-print-completion` => `--tyro-write-completion`
**Full Changelog**: https://github.com/brentyi/tyro/compare/v0.3.38...v0.4.0