v0.55.0 v0.55.1
low risk
umputun/ralphexOct 2, 2026 → Oct 2, 20260 days between releases
What's New
Switches default TTS to Deepgram Aura and fixes pause-mode barge-in audio drops.
New Features
- Deepgram Aura TTS integration as default provider.
- OpenAI TTS model selection configuration with BOT_TTS_MODEL setting.
Improvements
- Reduced TTS latency by switching to Deepgram Aura.
- Improved OpenAI TTS stability by defaulting to the `tts-1` model.
Bug Fixes
- Fixed pause-mode barge-in dropping bot audio after resolution.
Upgrade Notes
The example bot now defaults to Deepgram Aura TTS; if using OpenAI, ensure `BOT_TTS_MODEL` is set to `tts-1` or higher. The pause-mode barge-in bug fix applies to all configurations.
The Two Releases
v0.55.0
v0.55.0
Oct 2, 2026· 20 days ago
Introduces a new Pipecat transport layer for integrating SiphonAI with Pipecat pipelines and updates the ratatui dependency to address security vulnerabilities.
Full release notesv0.55.1
v0.55.1
Oct 2, 2026· 20 days ago
This release focuses on performance improvements for Text-to-Speech by making Deepgram Aura the default provider and fixes a bug where pause-mode barge-in would drop bot audio after resolution.
Full release notes