What changed
No action needed unless you validate responses against a closed schema.
Affects POST /accounts/{account_id}/ai-search/instances/{id}/chat/completions.
Who is affected
Code that reads POST /accounts/{account_id}/ai-search/instances/{id}/chat/completions (chunks[].media_start_ms).
Before and after
| Where | Before | After |
|---|---|---|
| POST /accounts/{account_id}/ai-search/instances/{id}/chat/completions · chunks[].media_start_ms | absent | present |
| POST /accounts/{account_id}/ai-search/namespaces/{namespace}/instances/{id}/chat/completions · chunks[].media_start_ms | absent | present |
| POST /accounts/{account_id}/ai-search/namespaces/{name}/chat/completions · chunks[].media_start_ms | absent | present |
Based on Cloudflare’s published API specification. How severity is decided.