API Breaking Changes - Critical Rule

CRITICAL: You must NEVER introduce breaking changes to the private API without explicit user approval.

What is a Breaking Change?

A breaking change is any modification that would require existing API consumers to update their code, including:

• Endpoints: Removing or renaming API endpoints
• Schemas: Changing request/response schemas
  • Removing fields from responses
  • Changing field types (string → number, object → array, etc.)
  • Making optional fields required
  • Renaming fields
• Authentication: Modifying authentication or authorization requirements
• HTTP Methods: Changing HTTP methods (GET → POST) or status codes
• Error Formats: Altering error response formats or codes
• Query Parameters: Removing or making required previously optional parameters
• Headers: Requiring new headers or changing header validation