What happened
Cursor 2.0 shipped with two headline features: a new proprietary coding model and a redesigned agent interface built around a dedicated sidebar. The sidebar lets developers manage multiple AI agents and their plans directly inside the editor — no more juggling chat windows or losing context between tasks.
The update also introduces a plan-based workflow: agents now surface structured plans that developers can review, approve, or modify before execution. Rather than prompting an AI in a side chat and manually applying results, developers can work with agents that propose multi-step sequences — file edits, terminal commands, dependency changes — visible in a persistent sidebar.
NOTE
Cursor labels this a full version bump from 1.x to 2.0. The changelog positions the agent sidebar and proprietary model as the defining additions, signaling a shift from inline completions and chat toward agent-driven workflows.
Why it matters
The proprietary coding model is the structural change worth watching. Previous Cursor versions offered model selection from third-party providers. A model built specifically for Cursor’s editor context could, in principle, integrate more tightly with the sidebar and plan structure — though the changelog does not detail the model’s architecture or how it differs from third-party options under the hood. This is worth testing empirically rather than assuming.
The plan-based workflow changes how developers interact with AI assistance. Instead of a single prompt producing a single response, the agent decomposes a task into reviewable steps. Each step is visible in the sidebar before execution. For multi-file operations — renaming a module and updating every import, for example — this structured approach surfaces the full scope of changes before any file is touched.
TIP
If you’re already on Cursor, update to 2.0 and try the agent sidebar on a refactoring task first — something like “rename this module and update all imports across the project.” Multi-file coordination is where the plan-based workflow shows its value over single-prompt chat.
The AI coding IDE space has grown competitive. GitHub Copilot, Windsurf, and others have each introduced their own agent-oriented features in recent months. Cursor’s approach — making agent management a structural element of the IDE with a persistent sidebar and reviewable plans — is a distinct design choice, though direct feature comparisons require hands-on testing of each tool.
Who should care
Developers already using Cursor daily will notice the workflow shift immediately — the sidebar introduces a different interaction model alongside the existing chat. Anyone evaluating AI coding IDEs should test 2.0 before making a decision, since the agent interface changes the comparison surface area.
Team leads managing multi-developer projects should pay attention to the plan visibility feature. Reviewable agent plans mean you can audit what the AI proposed before it touches your codebase — a meaningful step toward using AI agents in production codebases where unreviewed changes are a liability.
| Audience | What to evaluate in 2.0 |
|---|---|
| Daily Cursor users | How the sidebar workflow compares to the previous chat model for your common tasks |
| IDE evaluators (Cursor vs. alternatives) | Whether plan-based agents change your feature comparison criteria |
| Team leads / code owners | Plan visibility as an audit mechanism before AI-proposed changes land in the codebase |
| Developers using specific third-party models | Whether the new proprietary model handles your use cases or if model selection remains available |
Practical takeaway
Update Cursor to 2.0 and spend 30 minutes with the agent sidebar on a real task. The plan-based interaction model requires a different prompting style than chat. Be specific about scope (“refactor the auth module to use dependency injection”) rather than vague (“improve the code”). Bounded, well-defined tasks give the agent enough structure to produce a plan you can meaningfully review step by step.
Before committing to the new workflow, verify two things: whether the proprietary model is the default or an option alongside third-party models, and whether you can still select specific models for tasks where you have a preference. The changelog is the authoritative source for these details.
WARNING
The new coding model is proprietary to Cursor. If your workflow depends on selecting specific third-party models for certain tasks, confirm that model selection still works as expected in 2.0 before switching over entirely. The changelog should clarify what’s available.