ConsoleAppFramework v5 cannot handle parameter not defined in method. v4 can do it.

Program_v4.cs

// ConsoleAppFramework v4

using ConsoleAppFramework;

// # OK
// # Output: foo
// args = ["--msg", "foo"];

// # OK
// # Output: foo--hello bar
args = ["--msg", "foo", "--hello", "bar"];

var app = ConsoleApp.CreateBuilder(args).Build();
app.AddRootCommand((string msg, ConsoleAppContext context) => Console.WriteLine(msg + string.Join(" ", context.Arguments.Except(["--msg", msg]))));
await app.RunAsync();

/*
<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="ConsoleAppFramework" Version="4.2.4" />
  </ItemGroup>

</Project>
*/

Program_v5.cs

// ConsoleAppFramework v5

using ConsoleAppFramework;

// # OK
// # Output: foo
// args = ["--msg", "foo"];

// # NG
// # Output: Argument '--hello' is not recognized.
// args = ["--msg", "foo", "--hello", "bar"];

// # OK
// # Output: foo--hello bar
args = ["--msg", "foo", "--arguments", "--hello", "bar"];

var app = ConsoleApp.Create();
app.Add("", (string msg, params string[] arguments) => Console.WriteLine(msg + string.Join(" ", arguments)));
await app.RunAsync(args);


/*
<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net8.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="ConsoleAppFramework" Version="5.3.4">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>
  </ItemGroup>

</Project>
*/