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GitHub Copilot app adds local sandboxing in public preview

2026-09-24 · that day's edition · one of the five

The feature limits what local repository and working-tree sessions can touch on a developer's machine.

GitHub's Octocat mark inside a green targeting-ring graphic, with the words Local sandboxing in GitHub Copilot app and a NEW RELEASE badge, on a dark green background.Image: GitHub
source · The vendor's own image of its own product, used to report on that product

GitHub's changelog says local sandboxing in the Copilot app limits access to files, network resources and credentials on a developer's machine. In the app, it is configured per project for local repository and working tree sessions. GitHub says the feature is off by default and is in public preview.

What this rests on

  1. Local sandboxing helps reduce the potential impact of unintended commands by limiting access to files, network resources, and credentials on your machine.

    Local sandboxing in the GitHub Copilot app · GitHub · 2026-09-23
    Local sandboxing helps reduce the potential impact of unintended commands by limiting access to files, network resources, and credentials on your machine.

  2. Local sandboxing is off by default.

    Local sandboxing in the GitHub Copilot app · GitHub · 2026-09-23
    Local sandboxing helps reduce the potential impact of unintended commands by limiting access to files, network resources, and credentials on your machine.

  3. Local sandboxing is in public preview and subject to change.

    Local sandboxing in the GitHub Copilot app · GitHub · 2026-09-23
    Local sandboxing helps reduce the potential impact of unintended commands by limiting access to files, network resources, and credentials on your machine.

  4. In the GitHub Copilot app, you configure it per project for local repository and working tree sessions.

    Local sandboxing in the GitHub Copilot app · GitHub · 2026-09-23
    Local sandboxing helps reduce the potential impact of unintended commands by limiting access to files, network resources, and credentials on your machine.

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