protoc v3.6 and v3.15 compatibility for different languages

Luigi Riefolo

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Apr 21, 2021, 4:23:35 AM4/21/21

to Protocol Buffers

Hello people,

I have two services that are exchanging protobuf messages (not over gRPC), one is written in Ruby and uses v3.6 while the other one is written in Go v3.15.

Recently I've come across a change that requires an update in the Ruby service, as it needs to support the new timestamp format. Unfortunately this will not be possible for a while.

So my question is: given that these two services are using different protobuf versions and different languages, is there any chance that I might introduce a compatibility issue? Or anything related?

Regards,

Luigi

Marc Gravell

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Apr 21, 2021, 4:47:11 AM4/21/21

to Luigi Riefolo, Protocol Buffers

The actual serialization format hasn't changed since protobuf was released; as long as *your schemas* haven't changed in that time (at least, not in incompatible ways; adding fields etc is pretty safe as long as they aren't "required" in proto2), you should be absolutely fine. It is expected and normal that producers and consumers might be using different implementations / languages / library versions / etc.

Marc

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Regards,

Marc

Luigi Riefolo

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Apr 21, 2021, 5:02:32 AM4/21/21

to Marc Gravell, Protocol Buffers

thanks Marc.

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Regards,

Luigi

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