Copilot code review adds Max, a multi-model review tier, and its approvals now count toward merges
In public preview since Oct 28, Max runs several independent review agents on models from different providers and has an aggregation agent reconcile them into one review; GitHub's docs estimate about $10 in AI credits per Max review versus $1.50 for Balanced. Copilot approvals are now GA and count toward required approvals, but get dismissed when new commits land (docs).
