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  1. 2c6f098 protogen: simplify and fix naming derivation logic by Joe Tsai · 21 hours ago master
  2. 7c624e2 encoding/textpb: ignore reserved field names during unmarshal by Herbie Ong · 25 hours ago
  3. 7065195 encoding/textpb: switch tests to use V2 generated messages by Herbie Ong · 25 hours ago
  4. 20a1d31 encoding/textpb: add marshaling of unknown fields by Herbie Ong · 3 days ago
  5. 800c990 encoding/textpb: initial textproto unmarshaling by Herbie Ong · 8 days ago

Next Generation Go Protocol Buffers

WARNING: This repository is in active development. There are no guarantees about API stability. Breaking changes will occur until a stable release is made and announced.

This repository is for the development of the next major Go implementation of protocol buffers. This library makes breaking API changes relative to the existing Go protobuf library. Of particular note, this API aims to make protobuf reflection a first-class feature of the API and implements the protobuf ecosystem in terms of reflection.

Design Documents

List of relevant design documents:


We appreciate community contributions. See

Reporting Issues

Issues regarding the new API can be filed at Please use a APIv2: prefix in the title to make it clear that the issue is regarding the new API work.