GitHub Stacked Pull Requests: What Shipped and What to Measure — On 30 July 2026 GitHub put stacked pull requests into public preview: a chain of small PRs that depend on each other, instead of one huge change. Small PRs are easier to review. You still need to watch the large ones, not just typical size.
Your Cycle Time Is One Number. Your PR Pipeline Has Four Stages. — A July 2026 CMU/Stanford study of 196,212 pull requests had to split the wait into stages before it could say where delivery time actually goes. GitQuick's Pipeline view does the same per org — and across eighteen public showcase orgs, the stage that looks fastest is often just the one with the most bots in it.
Your PRs Are Approved. Why Aren't They Merging? — Everyone watches review latency. Almost nobody watches the gap between the green checkmark and the merge. Across public organizations showcases, median approval-to-merge is minutes, but the P90 tail runs hours to over a day, and GitQuick's Merge Pipeline Friction signal fires on every one of them.
Half Your Merges Might Have Zero Review. Do You Know the Number? — Zero-review merges are up 31% industry-wide even as Copilot runs 60M reviews. GitQuick showcase data from ten major open-source orgs shows the range - from 0.1% to 52.4% - and why most teams still do not track it.
The Bottleneck Moved. Your Metrics Probably Didn't. — AI coding tools boosted commits by 180%, but releases only rose 30%. Recent engineering debates and real PR data from major open-source organizations point to the same problem: code review is becoming the new delivery constraint.
Your Code Reviews Are Slower Than You Think — Why teams underestimate review speed: selective memory, weekend blind spots, and averages that hide the long tail — and what to measure instead.