Data and AI releases

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Copilot harness generally available in Copilot for JetBrains

Generally availableVerified

This update brings Copilot harness to generally availability. You also get more stable account, model, and MCP experiences. What’s new Copilot harness generally available Copilot harness is now generally available, providing faster feature delivery and better code quality.

AI agentsMCPObservabilityDeveloper toolsCoding agents

Read on github.blog

Also shipped Aug 25, 2026GitHub in August 2026 →

More from GitHub CopilotEvery GitHub Copilot release →

GitHub Copilot app Customize tab is generally available

GitHub Copilot is more useful when it works with the tools, knowledge, and workflows your team already relies on. The new Customize tab in the GitHub Copilot app brings MCP servers, plugins, skills, and canvases together in one place. Explore featured customizations, browse by type, and find new ways to tailor Copilot to how you and your team work.

GA
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Global model policy generally available

In July, we announced a default model policy for generally available GitHub Copilot models on Copilot Business and Copilot Enterprise plans. Starting today, we’re gradually rolling out enforcement of the policy through September 1, so it will take effect at different times for different enterprises.

GA
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Copilot code review: Resolution reasons and expanded capabilities

Copilot code review can now review two types of pull requests it didn’t cover before: Reviews requested automatically on pull requests authored by bots, including Copilot cloud agent Very large pull requests Additionally, you can now submit the reason for why you’re resolving a particular Copilot code review comment.

Update
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GitHub Copilot in Visual Studio , August update

August 2026 brought more control over how GitHub Copilot reasons, which models you use, how teams share specialized agents, and when you ask for a code review. Highlights Here’s what’s new with GitHub Copilot in Visual Studio 2026.

Update
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GitHub Copilot weekly releases , August 24

This week’s updates give you more control over how Copilot runs, from team sessions in Slack and Teams to customization across the app, CLI, and your IDE. GitHub Copilot in Slack and Microsoft Teams Turn team conversations into shared agent sessions.

GA
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The new GitHub Copilot experience in Slack

The GitHub integration in Slack now brings the agentic capabilities of GitHub Copilot CLI and the GitHub Copilot app into Slack in public preview. You can work with @GitHub to plan changes, investigate problems, and hand off coding tasks from the conversations where your team coordinates work.

Preview
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