{"version":"2.1.260","anchor":"new-streaming-latency-telemetry-fields-on-sdk-turn-results","canonical_anchor":"new-streaming-latency-telemetry-fields-on-sdk-turn-results","heading":"New streaming latency telemetry fields on SDK turn results","tier":"internal","area":"Headless SDK","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.260\/e\/new-streaming-latency-telemetry-fields-on-sdk-turn-results","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.260","markdown":"### New streaming latency telemetry fields on SDK turn results\n\nSDK turn results now capture finer streaming latency timing for the first content frame.\n\nHeadless SDK query results now capture finer-grained streaming latency: `first_content_frame_ms` and timing for when the first stream chunk was posted\/acknowledged, including wall-clock variants, added alongside the existing ttft metrics.\n\n- Area: Headless SDK\n- Names: `first_content_frame_ms`\n- Tier: Under the hood\n- Useful: 2\/5\n- Signal: 1\/5"}