HOW GITHUB USES MERGE QUEUE TO SHIP HUNDREDS OF CHANGES EVERY DAY

Summary from the TLDR Web Dev newsletter

GitHub developed “merge queue” to provide a streamlined, automated, and consistent method for deploying and merging code across its repositories. Merge queue's key features include dynamic grouping of pull requests, automatic conflict detection, and integration with GitHub Actions for testing. After a phased rollout, merge queue is now the primary way GitHub engineers ship code, leading to better deployment velocity and developer satisfaction.