“Everyone’s in a race to replace GitHub”: Zed launches Delta because agents made pull requests obsolete

8.1 relevance

Agent-based development paradigm shift with new tool Delta, highly relevant to future of code review and CI.

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Why It Matters

For solutions architects evaluating agent orchestration and platform engineering, Delta's thread-based model signals a fundamental redesign of code collaboration workflows that accounts for AI agent reasoning, potentially replacing PR-centric CI/CD paradigms and impacting how teams integrate agents into SDLC.

Key Takeaways

Explore thread-based, context-preserving collaboration models for code review and agent integration, as alternatives to pull requests that fail to capture agent decision-making and struggle with volume.

“Everyone’s in a race to replace GitHub”: Zed launches Delta because agents made pull requests obsolete

Summary

Zed launched Delta in public beta, a thread-based collaborative environment that replaces pull requests with shared, context-preserving threads for human and AI agent code review, directly challenging GitHub. Delta addresses GitHub's infrastructure strain from agent-generated code surges—2.9 billion monthly commits by August 2025 and a near-eight-hour outage—by using DeltaDB for edit-level versioning and preserving agent reasoning context. Co-founder Nathan Sobo, a former GitHub Atom editor lead, positions Delta as the inevitable successor; the project emerged from Zed's Rust-based multiplayer editor, backed by $32 million in Sequoia-led funding.

Author

Paul Sawers