# DeltaDB

> DeltaDB is a version control system from Zed that records every operation between commits as addressable deltas and links each change to the agent conversation that produced it, so teammates and agents can collaborate on live work without pull requests.

DeltaDB is a version control system from Zed Industries, built for software development where AI agents do much of the work. Announced on the Zed blog in June 2026 and opening in early access, it treats the conversation with an agent as the real source of the code and keeps the two tied together as both change. The stated aim is to replace the pull-request ceremony with a way to collaborate on work while it is still happening.

## What It Is

Zed describes DeltaDB as a new kind of version control built on a single abstraction that turns your conversations with agents and the worktrees they edit into shared artifacts. Where Git records a snapshot at each commit, DeltaDB records every operation in between as a fine-grained delta and gives each one a stable identity. Because any delta can be addressed on its own, the company says you can point to the code at a specific moment in its history even as it keeps changing.

## How It Works

DeltaDB embeds conflict-free replicated worktrees, which Zed says lets many people and agents edit the same files at once across different machines. The files are real: agents work in them through a terminal, and you can mount the whole worktree to disk to run your own tools on it. Because it virtualizes the worktree, the site says spinning up a new agent branch is effectively free, and any point in history, including mid-run, is a valid branch point.

## Code Tied to Conversation

Every reference is anchored to a delta rather than a line number, so it survives as the code moves underneath it. From a line in a past conversation you can jump to that code as it stands now or as it stood when the agent wrote it, and from any line of code you can find the conversation that produced it and every conversation that has touched it since. Zed says agents can draw on this too, picking up the context behind the code they are editing or consulting the earlier agents that worked on it.

## Collaboration Without Commits

The stated goal is to make the conversation with the agent the only conversation a team needs. A teammate can join while the work is still in progress, talk to the agent that did it, and annotate as they go, without waiting for a commit and push first. Zed positions Git and CI as still useful for running checks and connecting to the outside world, rather than being the place collaboration is forced to happen.

## Availability

As of the June 2026 announcement, DeltaDB was described as a beta a few weeks away, with sign-ups collected through an early-access waitlist that asks for an email and GitHub username. It is developed by Zed Industries, the team behind the Zed editor, which the company founded in 2021 to move past the constraints of commit-based collaboration.

## Features
- Records every operation between commits as fine-grained deltas with stable identities
- Rewind to the code as it stood at any point in its evolution
- Links every change to the agent conversation that produced it
- Bidirectional navigation between any line of code and its originating conversation
- Virtualized worktree makes spinning up an agent branch effectively free
- Branch from any point in history, including mid-run
- Conflict-free replicated worktrees let multiple people and agents edit the same files across machines
- Mount the worktree to disk to use your own local tools
- Agents can retrieve the context behind existing code and consult prior agents
- Teammates can join active work, talk to the agent, and annotate without waiting for a commit and push
- Works alongside Git and CI for checks and external integration

## Integrations
Git, CI

## Platforms
MACOS, WINDOWS, LINUX

## Pricing
Freemium — Free tier available with paid upgrades

## Links
- Website: https://zed.dev/deltadb
- EveryDev.ai: https://www.everydev.ai/tools/deltadb