Building fine-grained version control for agents with Rust and Durable Objects — Delta Blog

Zed Industries developers have introduced DeltaDB, a version control system designed to manage agent context by streaming edits from humans and agents into a monotonically growing causal graph of CRDTs. The system stores all data locally in SQLite using copy-on-write B+ trees and synchronizes thread states across clients and Cloudflare Durable Objects. The authors explain that DeltaDB underpins their new first-party agentic coding harness, Delta, allowing seamless real-time collaboration and fine-grained history tracking without relying on Git for cross-agent coordination. Open article →