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  1. 9f1165c all: fix reflection behavior for empty lists and maps by Damien Neil · 13 days ago master
  2. 82886da reflect/protoreflect: add {Message,List,Map}.IsValid by Damien Neil · 13 days ago
  3. 1c31032 testing/protocmp: add Ignore options and Any support by Joe Tsai · 6 weeks ago
  4. fab1c8d testing/protocmp: switch Enum.Number to be a method by Joe Tsai · 4 weeks ago
  5. 613285c internal/impl: refactor makeStructInfo by Joe Tsai · 4 weeks 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.