v0.76.2 livekit-agents@1.8.2
livekit/agentsSep 14, 2026 → Sep 15, 20261 day between releases
What's New
Introduces blocking detection, prefork startup, and Speechmatics STT migration.
Breaking Changes
- Speechmatics STT plugin migrated to Agent STT, requiring code or config updates.
- Refuses to start DuplexModel under text simulation, potentially breaking text simulation setups.
New Features
- Synthesia interactive-avatar plugin support.
- Rime Coda streaming support in LiveKit.
- ElevenLabs secondary languages and language detection for realtime STT.
- Speechmatics STT plugin migration to Agent STT.
- Speechify attribution header support.
Improvements
- Run loop blocking detection surfaces stalls in Agent Insights without a profiler.
- Prefork server preloads libraries to cut agent startup time by up to 800ms.
- Improved telemetry traces cover the full agent lifecycle from dispatch to session start.
- New telemetry spans added for turn handoff, interruptions, and RPC calls.
Bug Fixes
- Detects silently dropped sockets in Deepgram STT to prevent hanging.
- Repositions mid-conversation instructions for Gemini gateway and Mistral.
- Pins Anthropic dependency below version 1 for stability.
- Refuses to start DuplexModel under text simulation to prevent errors.
Upgrade Notes
If using Speechmatics STT, you must migrate to the new Agent STT plugin interface. Ensure your text simulation setup is compatible with the new DuplexModel validation logic.
The Two Releases
v0.76.2
Sep 14, 2026· 1 month ago
Minimal release notes: "**Full Changelog**: https://github.com/Mesh-LLM/mesh-llm/compare/v0.76.1...v0.76.2"
Full release noteslivekit-agents@1.8.2
Sep 15, 2026· 1 month ago
This release focuses on performance optimizations and enhanced telemetry. It introduces blocking detection for the asyncio event loop, faster agent startup times, and comprehensive lifecycle tracing to help developers identify stalls and optimize their voice agent applications.
Full release notes