GitHub upgrades Copilot code review agents

Summary

GitHub has announced Copilot code review updates: comments are now auto-resolved once a later commit addresses them, and applying a suggestion generates a smart commit message. Behind the scenes, the review agent uses the full shell toolset behind the Copilot agent firewall to run builds and tests, and Lite reviews now combine an ensemble of agents. GitHub's own experiments showed 47% more addressed high-severity comments at roughly 8% lower review cost.

Why it matters for our work

With routine review upkeep handled by agents, developers can focus on the feedback that still matters. The update shows a deliberate push to improve review quality and cost at the same time.

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