Microsoft’s GitHub announced today that it is evolving its Copilot functionality with ChatGPT-4 to provide chat and voice interfaces, pull request support, and answers to questions.

“GitHub Copilot started a new age of software development as an AI pair programmer that keeps developers in the flow by auto-completing comments and code,” GitHub’s Thomas Dohmke writes. “But AI-powered auto-completion is just the starting point. Our R&D team at GitHub Next has been working to move past the editor and evolve GitHub Copilot into a readily accessible AI assistant throughout the entire development lifecycle. This is GitHub Copilot X.”

GitHub Copilot X adds the following new features to GitHub:

AI-powered chat experience. Using native integration with Visual Studio and Visual Studio Code, GitHub Copilot X introduces a ChatGPT-like chat experience right in your code editor. It recognizes the code you type, and any displayed error messages, and it provides “depth analysis and explanations of what code blocks are intended to do, generate unit tests, and even get proposed fixes to bugs.” You can sign up for the technical preview here, but note that it requires a GitHub Copilot license.

Copilot for Pull Requests. This new service uses AI to generate descriptions for pull requests on GitHub. Developers can then review or modify the suggested description. You can sign up for the technical preview here.

AI-generated answers about documentation. GitHub Copilot for Docs is an experimental chat-based tool that provides users with AI-generated responses to questions about documentation, including questions about languages, frameworks, and technologies they’re using. Today, it supports the documentation for React, Azure Docs, and MDN. You can join the waitlist here.

Copilot for the command line interface (CLI). Because developers spend so much time using command-line interfaces, GitHub Copilot CLI  will help them “compose commands and loops, and throw around obscure find flags to satisfy your query.” You can join the waitlist here.

You can learn more about GitHub Copilot X on the GitHub website.