## Cadence

- Incremental releases: daily (business days).
- Breaking-change releases: weekly window with advance notice.
- Production hotfixes: immediate after minimum validation.

## Version semantics

| Type | Example | Expected impact |
| --- | --- | --- |
| Patch | `2026.03.15-p1` | fixes without contract changes |
| Minor | `2026.03.15-m1` | backward-compatible capabilities |
| Breaking | `2026.03.15-b1` | contract changes requiring migration |

## Deprecation policy

<Note title="Minimum window">Any endpoint marked as deprecated stays available for at least 90 days.</Note>

1. Changelog announcement with explicit removal date.
2. Runtime warning header for affected clients.
3. Migration guide published before deadline.

## Production release criteria

- ✅ Unit and integration tests green.
- ✅ Reversible migrations or documented rollback plan.
- ✅ Risk communication distributed to support and operations.