> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zelinqa.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> Latest changes to the NBQ Engine API and documentation.

<Update label="β 0.9" description="2026-06-30">
  **Public beta launch.**

  * Public REST API at `api.zelinqa.ai`: `POST /v1/next-questions`, `POST /v1/sessions/{session_id}/conversion`, and `GET /v1/health`.
  * **NBQ Studio** — no-code back-office to configure questions, behavior, and API keys.
  * API key authentication with `nbq_live_…` keys.
  * Python SDK and bilingual documentation (English + French).
</Update>