Originally published on AI Tech Connect.
What changed with Zed 1.0 After three years in beta, the Rust-built editor Zed reached version 1.0 on 29 April 2026. The headline feature is not a new chat panel or another bundled model. It is a documented, open specification called the Agent Client Protocol (ACP) that lets any external command-line coding agent plug into the editor as a first-class participant. Alongside ACP, the 1.0 release brings parallel agents in a single window, support for DeepSeek V4 and Claude Opus 4.7, and the open-weight Zeta2 edit-prediction model. For builders evaluating IDEs in May 2026 — whether you are a product team in Bengaluru trying to standardise on a single editor, or a regulated-sector engineer in Manchester who cannot ship source code to a third-party API — Zed 1.0 changes the shape of the…
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