| Feature | New, user-visible functionality. | High |
| Enhancement | Improvement to existing behaviour (perf, ergonomics, refactor). | Medium |
| Bug Fix | A defect was repaired. | Low–Medium |
| Security Fix | A vulnerability was patched. Read it. | Critical |
| Breaking Change | API, config, or behaviour that won’t be backwards-compatible. Read it before upgrading. | Critical |
| Deprecation | Marked for removal in a future release; still works for now. | High |
| Maintenance | Chore — build scripts, formatting, dev tooling. Hidden by default. | Noise |
| Dependency Update | Bumping a transitive dep. Hidden by default. | Noise |