GitHub Copilot Code Review Drops File Limits and Adds Resolution Reasons

GitHub has expanded Copilot code review with three concrete changes announced on August 27, 2026. The tool can now review pull requests authored by bots (including the Copilot cloud agent) and has dropped the previous hard cap of 300 files or 20,000 lines of code per PR. On top of that, developers can now attach a reason when resolving a Copilot review comment, choosing from three options: Addressed, Won't fix, or Incorrect.

What happened

Change	Detail
Bot PR reviews	Now supported when the no-license policy is enabled; billed to the organization
Copilot cloud agent PRs	Previously fell back to a limited review; now receives a full agentic review
PR size limit removed	Old cap was 300 files or 20,000 lines of code; cap no longer applies
Comment resolution reasons	Three options: Addressed, Won’t fix, Incorrect

GitHub shipped these changes to Copilot code review on August 27, 2026. The update addresses three gaps that teams hit in practice: bot-generated PRs going unreviewed, massive PRs silently skipped, and no way to tell GitHub why a comment was dismissed.

Bot-authored pull requests

When a bot opens a PR, there is no Copilot-licensed account to charge the review to. GitHub has solved this with a specific org-level policy: “Allow members without a Copilot license to use Copilot code review in GitHub.com.” With that policy on, the review runs and the cost is billed directly to the organization rather than an individual seat.

This matters most for teams using automated dependency updaters or the Copilot cloud agent, where the PR author is not a human. Previously those PRs either skipped review entirely or fell back to a degraded experience. According to GitHub, Copilot cloud agent PRs now receive a full agentic review rather than the limited fallback.

No more size limits on pull requests

The old ceiling was 300 files or 20,000 lines of code. Any PR over that threshold was simply not reviewed. GitHub has removed the cap altogether. Large refactors, dependency upgrades, or generated code dumps that previously sailed through without a Copilot pass will now get one.

Resolution reasons on comments

A new dropdown sits next to the existing “Resolve conversation” button at the bottom of any Copilot code review comment. Clicking it lets you pick one of three reasons before resolving:

• Addressed: you fixed the issue the comment raised.
• Won’t fix: you disagree or the fix is out of scope.
• Incorrect: the comment was wrong or irrelevant.

According to GitHub, the selection feeds back to the product team to improve the model’s future suggestions. That means “Incorrect” is the most valuable label to use accurately: it signals a false positive and helps reduce noise over time.

Why it matters

Teams running CI-driven workflows or agentic coding pipelines now get consistent review coverage without manually assigning a licensed reviewer to every bot PR. The size limit removal is a quieter but significant fix: very large PRs are often the ones where a second set of eyes matters most, and skipping them was a real gap in coverage.

The resolution reason feature is smaller in scope but has compounding value. Every “Incorrect” tag is a training signal. If your team consistently marks a category of Copilot suggestions as incorrect, GitHub’s model should, over time, stop making them. That feedback loop is how AI review tools get less annoying to use. If you follow updates to GitHub Copilot Enterprise, this fits a broader pattern of GitHub tightening the agentic loop across the platform.

Our take

The size limit removal is the change that will actually get noticed in day-to-day work. A 300-file cap sounds generous until you hit a large migration or a monorepo PR and the review just silently does nothing. Removing it is the right call.

The resolution reasons are a smart design choice, but only if teams use them honestly. If everyone just clicks “Addressed” to clear the queue, the feedback signal becomes useless. It is worth a five-minute team conversation about when to use “Incorrect” versus “Won’t fix” so the data going back to GitHub is actually meaningful.

For teams building agentic pipelines where the Copilot cloud agent opens its own PRs, this update closes a loop that was genuinely awkward. If you are exploring that kind of AI integration for your development workflow, the expanded review coverage makes the end-to-end pipeline feel more complete.

What to do about it

1. Check your org’s Copilot policy settings and confirm whether “Allow members without a Copilot license to use Copilot code review” is enabled, especially if your team uses dependency bots or the Copilot cloud agent.
2. Review your billing setup: bot PR reviews will now appear as org-level charges if that policy is on.
3. Brief your team on the three resolution reasons. Agree on when “Incorrect” applies so the feedback sent to GitHub is consistent and useful.
4. If you had exclusion rules or scripts routing around the old 300-file limit, audit them. Those workarounds are no longer needed.

The most practical step right now: turn on the no-license policy if bot PRs are part of your workflow, then watch your billing for the first two weeks to understand what that adds up to.

Source: GitHub Changelog