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docs: Changelog - error-context, help, usage flags

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Steven Tang 2022-09-22 19:42:58 +10:00
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CHANGELOG.md
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@ -184,6 +184,7 @@ Subtle changes (i.e. compiler won't catch):
- `mut_arg` can no longer be used to customize help and version arguments, instead disable them (`Command::disable_help_flag`, `Command::disable_version_flag`) and provide your own (#4056)
- Removed lifetimes from `Command`, `Arg`, `ArgGroup`, and `PossibleValue`, assuming `'static`. `string` feature flag will enable support for `String`s (#1041, #2150, #4223)
- `arg!(--flag <value>)` is now optional, instead of required. Add `.required(true)` at the end to restore the original behavior (#4206)
- Added default feature flags, `help`, `usage` and `error-context` (#4236)
- *(parser)* Always fill in `""` argument for external subcommands to make it easier to distinguish them from built-in commands (#3263)
- *(parser)* Short flags now have higher precedence than hyphen values with `Arg::allow_hyphen_values`, to be consistent with `Command::allow_hyphen_values` (#4187)
- *(parser)* `Arg::value_terminator` must be its own argument on the CLI rather than being in a delimited list (#4025)
@ -267,8 +268,8 @@ Behavior Changes
- Allow non-bool `value_parser`s for `ArgAction::SetTrue` / `ArgAction::SetFalse` (#4092)
- Allow resetting most builder methods
- Can now pass runtime generated data to `Command`, `Arg`, `ArgGroup`, `PossibleValue`, etc without managing lifetimes with the `string` feature flag (#2150, #4223)
- New default `error-context`, `help` and `usage` feature flags that can be turned off for smaller binaries (#4236)
- *(error)* `Error::apply` for changing the formatter for dropping binary size (#4111)
- *(error)* New default `error-context` feature flag that can be turned off for smaller binaries
- *(help)* Show `PossibleValue::help` in long help (`--help`) (#3312)
- *(help)* New `{tab}` variable for `Command::help_template` (#4161)