v1.2.1

HumanSignal/label-studiov1.2.1May 15, 2026by aconchillo

AI Summary

A maintenance release updating default WebSocket endpoints for Gradium services and fixing a bug where bots hang when using tool calls with specific filter settings.

Key Highlights

Changed default Gradium WebSocket endpoints to region-neutral URLs
Fixed bot hang when `filter_incomplete_user_turns` is enabled and LLM calls a tool

Breaking Changes

Default Gradium WebSocket endpoints changed to region-neutral URLs

Full Release Notes

### Changed

- Changed the default WebSocket endpoints for `GradiumSTTService` and `GradiumTTSService` to the region-neutral `wss://api.gradium.ai/api/speech/asr` and `wss://api.gradium.ai/api/speech/tts`. Gradium now automatically routes traffic to the nearest endpoint. Override the url to pin to a specific region.
  (PR [#4500](https://github.com/pipecat-ai/pipecat/pull/4500))

### Fixed

- Fixed bot hangs when `filter_incomplete_user_turns` was enabled and the LLM responded by calling a tool. The user turn never finalized, so the assistant aggregator gated the tool-result context push and the LLM continuation never ran. Tool calls now finalize the turn the moment they start, before the function dispatches.
  (PR [#4501](https://github.com/pipecat-ai/pipecat/pull/4501))