Paul Sawers writes that Zed has launched Delta, a collaborative development platform now in public beta that replaces pull requests with shared threads preserving the full conversation between developers and coding agents. The move responds to both volume pressure on GitHub — monthly commits jumped from roughly 1 billion in 2025 to 2.9 billion by August 2026 — and a structural mismatch: when much of the reasoning behind a change happens inside an agent conversation, a bare diff gives reviewers little context. Zed has already disabled pull requests on Delta's own repository, where 33 developers have landed 570 changes to main through threads, and co-founder Nathan Sobo expects the company to fully leave GitHub within a few months.
- DeltaDB, the version control layer beneath Delta, records individual edits and conversation events between Git commits, a finer granularity than Git's commit-based model; Zed calls these individual records "deltas."
- Sobo predicts the thread will replace the commit or branch as the fundamental unit of software development, with commits remaining only as checkpoints.
- Competitors share the thesis: SpaceX-owned Cursor launched Origin in August 2026, and GitLab has Project Switch in private beta.
- Delta works with existing Git repositories, so contributors who don't adopt it can still submit conventional pull requests; the platform is free during public beta with paid plans to follow.
- Zed raised $32 million from Sequoia Capital in August 2025, a round that also teased DeltaDB.
- DeltaDB, the version control layer beneath Delta, records individual edits and conversation events between Git commits, a finer granularity than Git's commit-based model; Zed calls these individual records "deltas."
- Sobo predicts the thread will replace the commit or branch as the fundamental unit of software development, with commits remaining only as checkpoints.
- Competitors share the thesis: SpaceX-owned Cursor launched Origin in August 2026, and GitLab has Project Switch in private beta.
- Delta works with existing Git repositories, so contributors who don't adopt it can still submit conventional pull requests; the platform is free during public beta with paid plans to follow.
- Zed raised $32 million from Sequoia Capital in August 2025, a round that also teased DeltaDB.
