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Update changelog for version 0.0.108

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2026-03-28 03:36:50 +00:00
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@@ -7,6 +7,308 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
<!-- towncrier release notes start -->
## [0.0.108] - 2026-03-27
### Added
- Added `SarvamLLMService` with support for `sarvam-30b`, `sarvam-30b-16k`,
`sarvam-105b` and `sarvam-105b-32k`.
(PR [#3978](https://github.com/pipecat-ai/pipecat/pull/3978))
- Added `on_turn_context_created(context_id)` hook to `TTSService`. Override
this to perform provider-specific setup (e.g. eagerly opening a server-side
context) before text starts flowing. Called each time a new turn context ID
is created.
(PR [#4013](https://github.com/pipecat-ai/pipecat/pull/4013))
- Added `XAIHttpTTSService` for text-to-speech using xAI's HTTP TTS API.
(PR [#4031](https://github.com/pipecat-ai/pipecat/pull/4031))
- Added support for "developer" role messages in conversation context across
all LLM adapters. For non-OpenAI services (Anthropic, Google, AWS Bedrock),
"developer" messages are converted to "user" messages (use
`system_instruction` to set the system instruction). For OpenAI services,
"developer" messages pass through in conversation history. For the Responses
API, they are kept as "developer" role (matching the existing "system" →
"developer" conversion).
(PR [#4089](https://github.com/pipecat-ai/pipecat/pull/4089))
- Added `SmallestTTSService`, a WebSocket-based TTS service integration with
Smallest AI's Waves API. Supports the Lightning v2 and v3.1 models with
configurable voice, language, speed, consistency, similarity, and enhancement
settings.
(PR [#4092](https://github.com/pipecat-ai/pipecat/pull/4092))
- Added warnings in turn stop strategies when `VADParams.stop_secs` differs
from the recommended default (0.2s) or when `stop_secs >= STT p99 latency`,
which collapses the STT wait timeout to 0s and may cause delayed turn
detection. The warnings guide developers to re-run the
[stt-benchmark](https://github.com/pipecat-ai/stt-benchmark) with their VAD
settings.
(PR [#4115](https://github.com/pipecat-ai/pipecat/pull/4115))
- Added `domain` parameter to `AssemblyAISTTSettings` for specialized
recognition modes such as Medical Mode (`domain="medical-v1"`).
(PR [#4117](https://github.com/pipecat-ai/pipecat/pull/4117))
- Added `NovitaLLMService` for using Novita AI's LLM models via their
OpenAI-compatible API.
(PR [#4119](https://github.com/pipecat-ai/pipecat/pull/4119))
- Added `cleanup()` method to `VADAnalyzer` and `VADController` so VAD analyzer
resources are properly released when no longer needed. Custom `VADAnalyzer`
subclasses can override `cleanup()` to free any held resources.
(PR [#4120](https://github.com/pipecat-ai/pipecat/pull/4120))
- Added `on_end_of_turn` event handler to `AssemblyAISTTService`. This fires
after the final transcript is pushed, providing a reliable hook for
end-of-turn logic that doesn't race with `TranscriptionFrame`. Works in both
Pipecat and AssemblyAI turn detection modes.
(PR [#4128](https://github.com/pipecat-ai/pipecat/pull/4128))
- Added `DeepgramFluxSageMakerSTTService` for running Deepgram Flux
speech-to-text on AWS SageMaker endpoints. Use with
`ExternalUserTurnStrategies` to take advantage of Flux's turn detection.
(PR [#4143](https://github.com/pipecat-ai/pipecat/pull/4143))
- Added `Mem0MemoryService.get_memories()` convenience method for retrieving
all stored memories outside the pipeline (e.g. to build a personalized
greeting at connection time). This avoids the need to manually handle client
type branching, filter construction, and async wrapping.
(PR [#4156](https://github.com/pipecat-ai/pipecat/pull/4156))
### Changed
- Added context prewarming path for `InworldTTSService` to improve first audio
latency.
(PR [#4013](https://github.com/pipecat-ai/pipecat/pull/4013))
- Added `KrispVivaVadAnalyzer` for Voice Activity Detection using the Krisp
VIVA SDK (requires `krisp_audio`).
(PR [#4022](https://github.com/pipecat-ai/pipecat/pull/4022))
- Modified `InworldTTSService` to close context at end of turn instead of
relying on idle timeout.
(PR [#4028](https://github.com/pipecat-ai/pipecat/pull/4028))
- Added Gemini 3 support to the Gemini Live service.
(PR [#4078](https://github.com/pipecat-ai/pipecat/pull/4078))
- `TTSService`: the default `stop_frame_timeout_s` (idle time before an
automatic `TTSStoppedFrame` is pushed when `push_stop_frames=True`) has
changed from `2.0` to `3.0` seconds.
(PR [#4084](https://github.com/pipecat-ai/pipecat/pull/4084))
- ⚠️ `GeminiLLMAdapter` now only treats `messages[0]` as the initial system
message, matching all other adapters. Previously it searched for the first
"system" message anywhere in the conversation history. A "system" message
appearing later in the list will now be converted to "user" instead of being
extracted as the system instruction.
(PR [#4089](https://github.com/pipecat-ai/pipecat/pull/4089))
- Fixed `InworldTtsService` to fallback to full text when TTS timestamps are
not received.
(PR [#4113](https://github.com/pipecat-ai/pipecat/pull/4113))
- ⚠️ Realtime services (Gemini Live, OpenAI Realtime, Grok Realtime, Nova
Sonic) now prefer `system_instruction` from service settings over an initial
system message in the LLM context, matching the behavior of non-realtime
services. Previously, context-provided system instructions took precedence. A
warning is now logged when both are set.
(PR [#4130](https://github.com/pipecat-ai/pipecat/pull/4130))
- Bumped `nvidia-riva-client` minimum version to `>=2.25.1`.
(PR [#4136](https://github.com/pipecat-ai/pipecat/pull/4136))
- Upgraded `protobuf` from 5.x to 6.x (`>=6.31.1,<7`).
(PR [#4136](https://github.com/pipecat-ai/pipecat/pull/4136))
- Unrecognized language strings (e.g. Deepgram's `"multi"`) no longer produce a
warning at startup. The log message has been downgraded to debug level since
these are valid service-specific values that are passed through correctly.
(PR [#4137](https://github.com/pipecat-ai/pipecat/pull/4137))
- `GrokLLMService` and `GrokRealtimeLLMService` now live in the
`pipecat.services.xai` module alongside `XAIHttpTTSService`, since all three
use the same xAI API. Update imports from `pipecat.services.grok.*` to
`pipecat.services.xai.*` (e.g. `from pipecat.services.xai.llm import
GrokLLMService`).
(PR [#4142](https://github.com/pipecat-ai/pipecat/pull/4142))
- ⚠️ Bumped `mem0ai` dependency from `~=0.1.94` to `>=1.0.8,<2`. Users of the
`mem0` extra will need to update their mem0ai package.
(PR [#4156](https://github.com/pipecat-ai/pipecat/pull/4156))
### Deprecated
- `pipecat.services.grok.llm`, `pipecat.services.grok.realtime.llm`, and
`pipecat.services.grok.realtime.events` are deprecated. The old import paths
still work but emit a `DeprecationWarning`; use `pipecat.services.xai.llm`,
`pipecat.services.xai.realtime.llm`, and
`pipecat.services.xai.realtime.events` instead.
(PR [#4142](https://github.com/pipecat-ai/pipecat/pull/4142))
### Removed
- ⚠️ `TTSService.add_word_timestamps()` no longer supports the `"Reset"` and
`"TTSStoppedFrame"` sentinel strings. If you have a custom TTS service that
called `await self.add_word_timestamps([("Reset", 0)])` or `await
self.add_word_timestamps([("TTSStoppedFrame", 0), ("Reset", 0)], ctx_id)`,
replace them with `await self.append_to_audio_context(ctx_id,
TTSStoppedFrame(context_id=ctx_id))` and let `_handle_audio_context` manage
the word-timestamp reset automatically.
(PR [#4145](https://github.com/pipecat-ai/pipecat/pull/4145))
- Removed `SambaNovaSTTService`. SambaNova no longer offers speech-to-text
audio models. Use another STT provider instead.
(PR [#4154](https://github.com/pipecat-ai/pipecat/pull/4154))
### Fixed
- Fixed Gemini Live (`GoogleGeminiLiveLLMService`) not honoring
`settings.system_instruction`. The system instruction was being read from a
deprecated constructor parameter instead of the settings object, causing it
to be silently ignored.
(PR [#4089](https://github.com/pipecat-ai/pipecat/pull/4089))
- Fixed `AWSBedrockLLMAdapter` sending an empty message list to the API when
the only message in context was a system message. The lone system message is
now converted to "user" role instead of being extracted, matching the
existing Anthropic adapter behavior.
(PR [#4089](https://github.com/pipecat-ai/pipecat/pull/4089))
- Fixed Gemini Live pipeline hanging indefinitely when an `EndFrame` was
deferred while waiting for the bot to finish responding and `turn_complete`
never arrived. As a possible root-cause fix, `turn_complete` messages are now
handled even if they lack `usage_metadata`. As a fallback, the deferred
`EndFrame` now has a 30-second safety timeout.
(PR [#4125](https://github.com/pipecat-ai/pipecat/pull/4125))
- Fixed ElevenLabs WebSocket disconnections (1008 "Maximum simultaneous
contexts exceeded") caused by rapid user interruptions. When interruptions
arrived before any TTS text was generated, phantom contexts were created on
the ElevenLabs server that were never closed, eventually exceeding the
5-context limit.
(PR [#4126](https://github.com/pipecat-ai/pipecat/pull/4126))
- Fixed the final sentence being dropped from the conversation context when
using RTVI text input with non-word-timestamp TTS services. The
`LLMFullResponseEndFrame` was racing ahead of the last `TTSTextFrame`,
causing the `LLMAssistantAggregator` to finalize the context before the final
sentence arrived.
(PR [#4127](https://github.com/pipecat-ai/pipecat/pull/4127))
- Fixed audio crackling and popping in recordings when both user and bot are
speaking. `AudioBufferProcessor` no longer injects silence into a track's
buffer while that track is actively producing audio, preventing mid-utterance
interruptions in the recorded output.
(PR [#4135](https://github.com/pipecat-ai/pipecat/pull/4135))
- Fixed websocket TTS word timestamps so interrupted contexts cannot leak stale
words or backward PTS values into later turns.
(PR [#4145](https://github.com/pipecat-ai/pipecat/pull/4145))
- Fixed a race condition in `InterruptibleTTSService` where, if `run_tts` had
been invoked but `BotStartedSpeakingFrame` had not yet been received, a user
interruption could allow stale audio to leak through.
(PR [#4145](https://github.com/pipecat-ai/pipecat/pull/4145))
- Fixed Gemini Live local VAD mode (`GeminiVADParams(disabled=True)` with
external VAD) not working. The bot now correctly detects user speech and
signals turn boundaries to the Gemini API.
(PR [#4146](https://github.com/pipecat-ai/pipecat/pull/4146))
- Fixed Gemini Live message handling to process all `server_content` fields
independently. Gemini 3.x can bundle multiple fields (e.g. `model_turn` and
`output_transcription`) on the same message, but the previous `elif` chain
only processed the first match, silently dropping the rest.
(PR [#4147](https://github.com/pipecat-ai/pipecat/pull/4147))
- Fixed `ServiceSwitcher` with `ServiceSwitcherStrategyFailover` incorrectly
triggering failover when `ErrorFrame`s from other pipeline stages (e.g. TTS)
propagated upstream through the switcher. Previously, any non-fatal error
passing through would be misattributed to the active service and trigger an
unwanted service switch. Now only errors originating from the switcher's own
managed services trigger failover.
(PR [#4149](https://github.com/pipecat-ai/pipecat/pull/4149))
- Fixed `LiveKitOutputTransport` not clearing the `rtc.AudioSource` internal
buffer on interruption, causing the bot to continue speaking for several
seconds after being interrupted.
(PR [#4151](https://github.com/pipecat-ai/pipecat/pull/4151))
- Fixed a crash in OpenAI LLM processing when the provider returns
`chunk.choices[0].delta.audio = None`, which caused `'NoneType' object has no
attribute 'get'` errors during audio transcript handling.
(PR [#4152](https://github.com/pipecat-ai/pipecat/pull/4152))
- Fixed error floods in `DeepgramSTTService` when the WebSocket connection
drops. With Deepgram SDK 6.x, `send_media()` raises exceptions on a dead
connection instead of silently failing, causing every queued audio frame to
log an error. Now `send_media()` failures are caught gracefully — a single
warning is logged and audio frames are skipped until the existing
reconnection logic restores the connection.
(PR [#4153](https://github.com/pipecat-ai/pipecat/pull/4153))
- `Mem0MemoryService` no longer blocks the event loop during memory storage and
retrieval. All Mem0 API calls now run in a background thread, and message
storage is fire-and-forget so it doesn't delay downstream processing.
(PR [#4156](https://github.com/pipecat-ai/pipecat/pull/4156))
- Fixed `Mem0MemoryService` failing to store messages when the context
contained system or developer role messages. The Mem0 API only accepts user
and assistant roles, so other roles are now filtered out before storing.
(PR [#4156](https://github.com/pipecat-ai/pipecat/pull/4156))
- Added missing `on_dtmf_event` callback to `LemonSliceTransportClient.setup()`
`DailyCallbacks` construction, fixing a `ValidationError` at pipeline setup
time.
(PR [#4161](https://github.com/pipecat-ai/pipecat/pull/4161))
- Fixed an issue in `InworldTTSService` where, in cases of fast interruption,
we would continue receiving audio from the previous context.
(PR [#4167](https://github.com/pipecat-ai/pipecat/pull/4167))
- Fixed a word timestamp interleaving issue in `InworldTTSService` when
processing multiple sentences.
(PR [#4167](https://github.com/pipecat-ai/pipecat/pull/4167))
- Fixed duplicate `TTSStoppedFrame` being pushed in TTS services using
`push_stop_frames=True`. When the stop-frame timeout fired, a second
`TTSStoppedFrame` could be pushed after the normal one at context completion.
(PR [#4172](https://github.com/pipecat-ai/pipecat/pull/4172))
- ⚠️ Fixed `DeepgramSTTService` compatibility with deepgram-sdk 6.1.0. The SDK
now requires explicit message objects for `send_keep_alive()`,
`send_close_stream()`, and `send_finalize()`. The minimum deepgram-sdk
version is now 6.1.0.
(PR [#4174](https://github.com/pipecat-ai/pipecat/pull/4174))
- Fixed RTVI events not being delivered to clients when using WebSocket
transports. `ProtobufFrameSerializer` now sets `ignore_rtvi_messages=False`
by default.
(PR [#4176](https://github.com/pipecat-ai/pipecat/pull/4176))
- Fixed a timing issue where turn detection timer tasks (idle controller,
speech timeout, turn analyzer, and turn completion) could miss their first
tick because the newly created asyncio task was not yet scheduled when the
caller continued.
(PR [#4183](https://github.com/pipecat-ai/pipecat/pull/4183))
- Fixed `FastAPIWebsocketTransport` intermittently hanging on shutdown when the
remote side (e.g. Twilio) disconnects while audio is being sent. A race
condition between the send and receive paths could cause the
`on_client_disconnected` callback to be skipped, leaving the pipeline waiting
for a disconnect signal that never came.
(PR [#4186](https://github.com/pipecat-ai/pipecat/pull/4186))
### Performance
- `RimeTTSService` now handles Rime's `done` WebSocket message to complete
audio contexts immediately, eliminating the 3-second idle timeout that
previously added latency at the end of each utterance.
(PR [#4172](https://github.com/pipecat-ai/pipecat/pull/4172))
## [0.0.107] - 2026-03-23
### Added