Anysphere · 2026-04-02 · major
Cursor 3.0 — agent-native IDE
Major Cursor redesign centered on parallel agents: run many agents across repos in worktrees, cloud, or remote SSH. Adds Design Mode for visual UI annotation and a /best-of-n multi-model comparison command.
Cursor 3.0 redesigns the IDE around parallel agents — run many at once across repos, worktrees, and the cloud, all from one sidebar.
Key specs
| New plugins | 30+ |
|---|---|
| New commands | /worktree, /best-of-n |
What is it?
Cursor 3.0 is a major redesign of the Cursor AI coding IDE, released April 2, 2026. The old single-chat model is replaced by an Agents Window where multiple agents run in parallel, each in its own tab, across local repos, git worktrees, cloud containers, or remote SSH hosts. Agents can be kicked off from desktop, mobile, web, Slack, GitHub, or Linear.
How does it work?
The core change is the Agents Window: every agent session appears as a tab in a sidebar grid. New commands include /worktree (creates an isolated git worktree so changes happen in isolation) and /best-of-n (runs the same task across multiple models and compares outcomes). Design Mode lets you annotate UI elements directly in an integrated browser and feed those annotations to the agent. Over 30 new marketplace plugins ship with the release, including integrations with Atlassian, Datadog, GitLab, and Hugging Face.
Why does it matter?
The bottleneck in AI-assisted development has shifted from 'can the model write code' to 'can I run many agents on different parts of my project without them stepping on each other.' Cursor 3.0 is the first mainstream IDE to make parallel, isolated agent execution a first-class concept rather than a hack.
Who is it for?
Professional developers using AI coding agents daily.
Try it
cursor.com/download