@livekit/agents@1.4.3

Patch Changes

• Improve audio discard checks - #1504 (@rosetta-livekit-bot)

• Add dynamic endpointing for voice turn handling. - #1475 (@rosetta-livekit-bot)

• fix(stt): reflect active child in FallbackAdapter model/provider - #1515 (@julien-lottie)

  audio_recognition.refreshUserTurnSttAttributes reads these on every STT event to stamp gen_ai.request.model / gen_ai.provider.name on the user_turn span. With static wrapper labels, every span reported FallbackAdapter / livekit regardless of which provider actually transcribed — so a mid-turn fallover was invisible in traces. Track the elected child from both the streaming and recognize paths and surface its identifiers.

• Add beta workflow InstructionParts exports. - #1500 (@rosetta-livekit-bot)

• Add updateOptions support to inference LLM for live model swaps. - #1527 (@rosetta-livekit-bot)

• fix audio resampler memory leak. - #1453 (@KrishnaShuk)

• feat(agents): add modality-aware Instructions with audio/text variants - #1484 (@toubatbrian)

  Introduce a new Instructions class for system prompts that adapt to the user's input modality. The pipeline now applies the matching variant before each LLM turn based on SpeechHandle.inputDetails.modality, and AgentSession.generateReply() and AgentSession.run() expose an inputModality option. Instructions.tpl supports JS-native prompt composition while preserving audio/text variants.

• brianyin/agt-2866-delete-room-on-session-close - #1501 (@toubatbrian)

• fix(agents): await realtime auto tool replies in RunResult - #1490 (@rosetta-livekit-bot)

• Add support for the Rime Coda TTS model. - #1523 (@rosetta-livekit-bot)

• feat(agents): add Speechmatics inference STT model options. - #1507 (@rosetta-livekit-bot)

• feat(agents): add livekit-agents download-files command for Docker layer caching - #1511 (@davidzhao)

  Adds a standalone CLI (npx livekit-agents download-files) that discovers installed @livekit/agents-plugin-* packages and downloads their asset files without loading the user's agent code.

• fix(barge-in): suppress session-level barge-in errors. - #1513 (@rosetta-livekit-bot)