v0.5.0 (in development)

v0.4.0 (2023-12-18)

Formatting InputArg::Stdin or OutputArg::Stdout with {:#} will now produce "<stdin>" or "<stdout>", respectively
Adjusted the trait bounds on the from_arg() methods and the From implementations. Pre-existing code that uses these features will still work, but now some more types are accepted, and there should be no more needless copying of data.
Added "serde" feature to enabling serializing & deserializing with serde

Initial release