How is the Response version handled

[Nugine]

https://docs.rs/http/latest/http/response/struct.Response.html#method.version_mut

http::Response has a version field. It is mostly the default vaule.

What is the use of it? Does hyper handle this automatically?

[seanmonstar]

It's worth it for you to set it when you can. And hyper will update it when giving your response.

[Nugine]

Thank you!
I'm also curious about the best practice. Do we need to copy the request version to response version?
What is the exact effect of setting a response version?