What Was Announced
GitHub Copilot released a major batch of updates in March 2026, clearly motivated by competitive pressure from Cursor and Windsurf, which have been eroding Copilot's market share with more capable agentic features. The update brings Agent Mode to general availability in Visual Studio, changes the default model to GPT-4.1, and adds several integration and multi-model improvements.
Key Features and Changes
Agent Mode GA in Visual Studio
Agent Mode — previously only GA in VS Code — is now generally available in Visual Studio 2022 and 2026. In Agent Mode, Copilot takes a natural-language goal and autonomously plans and executes a multi-step coding task across files: reading relevant code, proposing changes, running builds to check for errors, and iterating until the goal is met or it gets stuck. This brings Visual Studio on feature parity with VS Code for agentic workflows.
GPT-4.1 as Default Model
GPT-4.1 replaces GPT-4o as the default model for all Copilot tiers. According to GitHub, GPT-4.1 delivers faster and more accurate code suggestions, with notable improvements on multi-file edits and instruction-following. Gemini 2.5 Pro has also been added as a selectable model, giving teams the option to use Google's frontier model within the Copilot interface — an unusual move that reflects the multi-provider direction of AI tooling in 2026.
Jira Integration
Copilot can now read Jira ticket context directly from within the IDE. When you reference a ticket number, Copilot fetches the description, acceptance criteria, and linked issues, incorporating them into its understanding of the task. This is useful for ensuring AI-generated code stays aligned with the actual requirements defined in the project management tool rather than a verbal summary.
JetBrains IDE Improvements
The JetBrains plugin received a round of reliability and performance improvements, including faster indexing, better context awareness for Kotlin, and improved inline suggestion rendering in IntelliJ IDEA.
Cursor's Competing Move: Background Agents
For context: Cursor shipped Background Agents in the same period, allowing agentic tasks to run in the background while you continue working in the foreground. Windsurf introduced Planning Mode for long-running tasks and a dedicated EU production cluster for compliance. The competition between these tools is driving the fastest pace of improvement in AI coding assistant history.
Why It Matters for Developers
Agent Mode GA in Visual Studio is particularly important for .NET and C++ developers who have been watching VS Code users get agentic capabilities while they waited. The Jira integration is a practical productivity win for teams on Atlassian tooling — it reduces the mental overhead of context-switching between a ticket and the IDE.
The model flexibility (GPT-4.1 default, Gemini 2.5 Pro available) signals that Copilot is becoming a multi-model platform rather than an OpenAI-exclusive product, which gives enterprise teams more procurement and compliance options.
Source
Read the original article — HackerNoon
