Hacker News upvoted this because it hits a pain every large repo has: giant PRs that are hard to review and harder to land. GitHub’s Stacked PRs preview turns a big change into an ordered chain of smaller PRs, then gives that chain first-class UI, merge behavior, and a dedicated gh stack CLI.
One of the ugliest pull-request stalls just became a button. GitHub says its new Fix with Copilot flow can resolve merge conflicts, re-check build and tests, and push the repaired branch from a cloud-based development environment.
GitHub’s private-preview stacked pull request workflow drew strong Hacker News attention by promising smaller review units, a built-in stack map, and automatic rebasing across dependent PRs.
In an April 8, 2026 X post, Cursor said its code review agent can learn from pull-request activity in real time. The company also claimed that 78% of the issues the agent finds are resolved by the time the PR is merged.
GitHub now lets users mention <code>@copilot</code> in a pull request to request changes on that same PR. The company says Copilot coding agent handles the work in a cloud development environment, runs tests and linting, then pushes updates; pull requests from forks are not yet supported.
A satirical HN hit called RFC 406i turns maintainer frustration with low-effort AI submissions into a standard rejection link and a sharper statement about review burden.