Comment #20 on issue 493 by protobuf-java (2.5.0) GeneratedMessage#getUnknownFields() not implemented

True, it's definitely equally applicable for other libraries. It's a shame when other libraries do that too :-)

Does the protobuf team publish a specific versioning/compatibility policy? It's important for library developers to understand that upgrade their dependency to a particular version may cause problems.

In this instance, is this the only breaking change, and if so is there a specific reason the break has to be there? It's not clear to me whether the submitted patch does an appropriate thing.


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