Reviewing diffs

At the top of a compare page you'll find a component that looks like this:

Comparing abc123 and xyz987.

Status
Awaiting review Learn more
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This is Happo asking you to manually review the diffs on the page and either accept or reject them. By accepting, you signal to others that the diffs are expected, or at least okay from a design standpoint. The component will then switch to this:

Comparing abc123 and xyz987.

Status
Accepted by John Doe
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By rejecting, you signal to others that the diffs aren't okay, and that the author needs to follow up with something.

Comparing abc123 and xyz987.

Status
Rejected by John Doe
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If you have the right CI setup, the accept/reject status will also be posted back to the PR/commit on github.com.