Contributed a focused documentation update to the protocolbuffers/protobuf repository, reserving extension numbers 1253-1263 for protokt versions 1.0.0 and above. This work clarified the distinction between pre-1.0.0 and 1.0.0+ extension IDs, supporting a stable upgrade path and reducing the risk of future extension ID collisions. The update aligned with the project’s long-term roadmap by ensuring proper extension management for ongoing development. Leveraged Markdown for clear technical documentation and applied disciplined versioning strategy to maintain compatibility across protocol boundaries. Collaborated using Git-based workflows, emphasizing traceable change management and effective communication within the open-source development process.