🔗 Why merge queues?

Semantic merge conflicts occur when code changes merge cleanly in Git but break the build or fail tests when combined. In monorepos with large teams, frequent merging increases the likelihood of these conflicts, potentially blocking all deployments until resolved.

Merge queues test and merge changes sequentially or in batches, rebasing each change onto the trunk before running tests. They work best for monolithic builds where conflicts have high impact, but add overhead for loosely coupled microservices where conflicts are less likely or damaging.