Optional expected version? about cqrslite

[gautema]

I must admit, I can't remember why ExpectedVersion is required there. I think it started together with a few other fields as required, and most of them have been removed since other users have needed versions without knowing Id and so on. I'll look a bit further into this tomorrow and see if the property is ready for being retired.

[binarymash]

Well there are many use cases where it does makes sense to pass an expected version on the command, but as per your comment on #40 I think it shouldn't be a requirement. So I suppose the question is, should it be a nullable int on ICommand, or should it be up to the user to add it to their commands themselves if they need it? Looks like the code compiles if I comment out the property on ICommand, but as it's a common use case it might make sense to keep it on there but make it nullable.

Keep in mind that I don't really know what I'm doing with CQRS/ES so I might be talking rubbish :)

[gautema]

I agree that it shouldn't be required here since it's not required later in the chain. I think removing it will be the best, so existing users don't have to start casting or change their code in other ways.

[binarymash]

Yeah, I think that's the best approach. I'll create a pull request.

[binarymash]

Looks good in 0.21.0, thanks.