- Implement API version management middleware
- Add version lifecycle management (dev/stable/maintenance/deprecated/sunset)
- Add deprecation warning headers (X-API-Deprecated, X-API-Sunset-Date)
- Add version tracking headers (X-API-Version)
- Handle sunset versions with 410 Gone response
- Comprehensive API versioning documentation
- Include migration guide and best practices
- Support gradual version rollout
Phase 4 Task 44/68 completed
- Implement DependencyContainer for all repositories and use cases
- Create singleton pattern for repository instances
- Factory methods for all use cases (auth + workspace)
- Auth middleware: get_current_user with JWT verification
- Permission middleware: require_workspace_access/admin/owner
- Support optional authentication (get_current_user_optional)
- Integrate with PermissionChecker and QuotaChecker
Phase 4 Task 25/68 completed