---
summary: User-visible changes to ScaiEcho.
title: Changelog
path: changelog
status: published
---

User-visible changes only. Internal refactors and infrastructure work omitted.

## v0.0.1 — Initial rollout

The current phase ships the speech-to-text surface end-to-end. Module identity, permissions, admin pages, and the lifecycle hooks are all wired; the API mounts at `/v1/modules/scaiecho/`.

- Batch transcription via `POST /transcribe`. Inline for short audio, async via the arq worker pool for long audio with `GET /transcribe/jobs/{id}` for polling.
- Real-time WebSocket streaming at `WS /stream/transcribe`. Bearer auth from query or header, binary audio in, JSON delta frames out.
- WebRTC streaming under `/stream/transcribe/webrtc/`. Session create, SDP offer/answer, ICE trickle, control WebSocket for deltas, session teardown.
- Speaker library — list, get, enroll, warm-inspect, proactive warm, update, delete. Enrollment captures reference and consent audio with quality preflight and fan-out to every online pyannote node.
- Optional speaker diarization on streaming routes via `diarize=true`. Silently no-op on Backend B.
- Per-tenant backend policy at `/tenant-policy`. Lazy-provisioned from tier defaults.
- MCP tool `scaiecho.transcribe` registered in the catalog.
- Speaker erasure with immutable audit row and replica eviction.