GitHub unveils new Git storage architecture for agentic development scale
GitHub announced a redesigned Git storage architecture at GitHub Universe that separates storage from compute and limits coordination to reference updates rather than entire pushes. Internal testing showed the system handling 5,000 concurrent agents on a single repository with 7,200 pushes per second while maintaining low-latency reads, and the rollout has migrated 99.99999% of repositories to Azure using scoped write quorums and virtual replicas on Azure Blob Storage.
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GitHub frames the redesign as necessary infrastructure for supporting AI coding agents, which generate far higher write volumes on repositories than human developers typically do. By decoupling storage, request serving, and repository maintenance, the architecture could let GitHub scale each component independently without disrupting the familiar push/fetch/branch workflow for existing developers.
- New architecture supports 5,000 concurrent agents and 7,200 pushes per second on one repo in testing
- 99.99999% of repositories have been migrated to Azure using scoped write quorums and virtual replicas
- Design decouples storage from compute by limiting required coordination to reference updates only
Source: github.blog — Karthik Raman, 2026-11-06
Published there as: “GitHub's new Git storage architecture”
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