tl;dr: Zed is launching Delta, a new multiplayer application (separate from the Zed editor) for collaborative coding with AI agents, now in private beta. It's built on DeltaDB, which replicates both conversations and the git worktree in real time, letting teammates comment on any line of code or conversation, join threads via browser (via Rust compiled to WebAssembly/WebGL), and integrate with tools like Claude Code. Rather than retrofitting Zed, the team built Delta from scratch to center the interface on the agent conversation rather than the editor.