Field note

60 million Copilot code reviews: GitHub’s postmortem on signal vs thoroughness

March 2026 product essay on CCR usage scale, agentic redesign, and redefining “good review” as high-signal progress rather than exhaustive nitpicking.

Source: 60 million Copilot code reviews and counting — The GitHub Blog

GitHub reports CCR growing to a meaningful share of reviews on the platform and narrates the shift from early thoroughness goals to high-signal, actionable comments—powered by memory, models, and tool calling.

Why it matters for code review

This is the incumbent’s learning curve in public. The same quality axes (accuracy, signal, speed) show up in every serious vendor post; GitHub’s scale makes their thumbs-up loops a useful benchmark for what “good enough” looks like in the wild.