If you’re writing a client, I could see this being a problem.
If you’re writing a server, I believe the rule is that any once valid input must stay valid forever, so you just never delete fields. The main benefit of DisallowUnknownFields is that it makes it easier for clients to know when they’ve sent something wrong or useless.
If you’re writing a server, I believe the rule is that any once valid input must stay valid forever, so you just never delete fields. The main benefit of DisallowUnknownFields is that it makes it easier for clients to know when they’ve sent something wrong or useless.