v0.55.0 v0.55.1

low risk

BITyia/DroneSplatOct 2, 2026 → Oct 2, 20260 days between releases

What's New

Default TTS provider changed to Deepgram Aura and pause-mode audio drop bug fixed.

Breaking Changes

  • Python bot example now defaults to Deepgram Aura TTS instead of OpenAI
  • OpenAI TTS now requires explicit BOT_TTS_MODEL configuration

New Features

  • Deepgram Aura TTS integration
  • OpenAI TTS model configuration setting

Improvements

  • Reduced time-to-first audio latency
  • Improved PSTN call latency
  • Reused Deepgram API key for TTS

Bug Fixes

  • Fixed critical audio drop during pause-mode barge-in
  • Resolved 158-frame audio loss on PSTN calls

Upgrade Notes

If using the Python bot example, the TTS provider now defaults to Deepgram Aura. To use OpenAI TTS, explicitly set `BOT_TTS_PROVIDER=openai` and `BOT_TTS_MODEL=tts-1`. The pause-mode barge-in audio bug has been resolved.

The Two Releases

v0.55.0

v0.55.0

Oct 2, 2026· 20 days ago

SiphonAI v0.55.0 adds native support for Pipecat transport, a new Python bot example, and updates security dependencies.

Full release notes
v0.55.1

v0.55.1

Oct 2, 2026· 19 days ago

SiphonAI v0.55.1 updates the default TTS provider for the Python bot to Deepgram Aura and fixes a critical audio drop issue during pause-mode barge-in.

Full release notes