What changed
No action needed unless you validate responses against a closed schema.
Affects InputTextContentParam reachable from 7 operations.
Who is affected
Code that reads OpenAI's InputTextContentParam objects, used by 7 OpenAI operations.
Before and after
| Where | Before | After |
|---|---|---|
| InputTextContentParam.prompt_cache_breakpoint.ttl | absent | present |
Based on OpenAI’s published API specification. How severity is decided.