Protobuf has supported this for as long as I’ve used it. You add an optional field for the new data. And there’s a couple other considerations. (Docs: [0]) Fie

Protobuf has supported this for as long as I’ve used it. You add an optional field for the new data. And there’s a couple other considerations. (Docs: [0]) Fields have a number, which you can/should mark as reserved after you take it out. Then future developers won’t use a field that was something else in the past. [1] Since version all fields are optional ( they removed the required field feature). So your app has to check that the fields you want (in that version of your app) are present. [0] https://developers.google.com/protocol-buffers/docs/proto3#updating https://developers.google.com/protocol-buffers/docs/proto3#u...