Update changelog for version 0.0.106

CHANGELOG.md

@@ -7,6 +7,218 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 <!-- towncrier release notes start -->
 
+## [0.0.106] - 2026-03-18
+
+### Added
+
+- Added optional `service` field to `ServiceUpdateSettingsFrame` (and its
+  subclasses `LLMUpdateSettingsFrame`, `TTSUpdateSettingsFrame`,
+  `STTUpdateSettingsFrame`) to target a specific service instance. When
+  `service` is set, only the matching service applies the settings; others
+  forward the frame unchanged. This enables updating a single service when
+  multiple services of the same type exist in the pipeline.
+  (PR [#4004](https://github.com/pipecat-ai/pipecat/pull/4004))
+
+- Added `sip_provider` and `room_geo` parameters to `configure()` in the Daily
+  runner. These convenience parameters let callers specify a SIP provider name
+  and geographic region directly without manually constructing
+  `DailyRoomProperties` and `DailyRoomSipParams`.
+  (PR [#4005](https://github.com/pipecat-ai/pipecat/pull/4005))
+
+- Added `PerplexityLLMAdapter` that automatically transforms conversation
+  messages to satisfy Perplexity's stricter API constraints (strict role
+  alternation, no non-initial system messages, last message must be user/tool).
+  Previously, certain conversation histories could cause Perplexity API errors
+  that didn't occur with OpenAI (`PerplexityLLMService` subclasses
+  `OpenAILLMService` since Perplexity uses an OpenAI-compatible API).
+  (PR [#4009](https://github.com/pipecat-ai/pipecat/pull/4009))
+
+- Added DTMF input event support to the Daily transport. Incoming DTMF tones
+  are now received via Daily's `on_dtmf_event` callback and pushed into the
+  pipeline as `InputDTMFFrame`, enabling bots to react to keypad presses from
+  phone callers.
+  (PR [#4047](https://github.com/pipecat-ai/pipecat/pull/4047))
+
+- Added `WakePhraseUserTurnStartStrategy` for triggering user turns based on
+  wake phrases, with support for `single_activation` mode. Deprecates
+  `WakeCheckFilter`.
+  (PR [#4064](https://github.com/pipecat-ai/pipecat/pull/4064))
+
+- Added `default_user_turn_start_strategies()` and
+  `default_user_turn_stop_strategies()` helper functions for composing custom
+  strategy lists.
+  (PR [#4064](https://github.com/pipecat-ai/pipecat/pull/4064))
+
+### Changed
+
+- Changed tool result JSON serialization to use `ensure_ascii=False`,
+  preserving UTF-8 characters instead of escaping them. This reduces context
+  size and token usage for non-English languages.
+  (PR [#3457](https://github.com/pipecat-ai/pipecat/pull/3457))
+
+- `OpenAIRealtimeSTTService`'s `noise_reduction` parameter is now part of
+  `OpenAIRealtimeSTTSettings`, making it runtime-updatable via
+  `STTUpdateSettingsFrame`. The direct `noise_reduction` init argument is
+  deprecated as of 0.0.106.
+  (PR [#3991](https://github.com/pipecat-ai/pipecat/pull/3991))
+
+- Updated `sarvamai` dependency from `0.1.26a2` (alpha) to `0.1.26` (stable
+  release).
+  (PR [#3997](https://github.com/pipecat-ai/pipecat/pull/3997))
+
+- `SimliVideoService` now extends `AIService` instead of `FrameProcessor`,
+  aligning it with the HeyGen and Tavus video services. It supports
+  `SimliVideoService.Settings(...)` for configuration and uses
+  `start()`/`stop()`/`cancel()` lifecycle methods. Existing constructor usage
+  (`api_key`, `face_id`, etc.) remains unchanged.
+  (PR [#4001](https://github.com/pipecat-ai/pipecat/pull/4001))
+
+- Update `pipecat-ai-small-webrtc-prebuilt` to `2.4.0`.
+  (PR [#4023](https://github.com/pipecat-ai/pipecat/pull/4023))
+
+- Nova Sonic assistant text transcripts are now delivered in real-time using
+  speculative text events instead of delayed final text events. Previously,
+  assistant text only arrived after all audio had finished playing, causing
+  laggy transcripts in client UIs. Speculative text arrives before each audio
+  chunk, providing text synchronized with what the bot is saying. This also
+  simplifies the internal text handling by removing the interruption re-push
+  hack and assistant text buffer.
+  (PR [#4042](https://github.com/pipecat-ai/pipecat/pull/4042))
+
+- Updated `daily-python` dependency to 0.25.0.
+  (PR [#4047](https://github.com/pipecat-ai/pipecat/pull/4047))
+
+- Added `enable_dialout` parameter to `configure()` in `pipecat.runner.daily`
+  to support dial-out rooms. Also narrowed misleading `Optional` type hints and
+  deduplicated token expiry calculation.
+  (PR [#4048](https://github.com/pipecat-ai/pipecat/pull/4048))
+
+- Extended `ProcessFrameResult` to stop strategies, allowing a stop strategy to
+  short-circuit evaluation of subsequent strategies by returning `STOP`.
+  (PR [#4064](https://github.com/pipecat-ai/pipecat/pull/4064))
+
+- `GradiumSTTService` now takes both an `encoding` and `sample_rate`
+  constructor argument which is assmebled in the class to form the
+  `input_format`. PCM accepts `8000`, `16000`, and `24000` Hz sample rates.
+  (PR [#4066](https://github.com/pipecat-ai/pipecat/pull/4066))
+
+- Improved `GradiumSTTService` transcription accuracy by reworking how text
+  fragments are accumulated and finalized. Previously, trailing words could be
+  dropped when the server's `flushed` response arrived before all text tokens
+  were delivered. The service now uses a short aggregation delay after flush to
+  capture trailing tokens, producing complete utterances.
+  (PR [#4066](https://github.com/pipecat-ai/pipecat/pull/4066))
+
+### Deprecated
+
+- `SimliVideoService.InputParams` is deprecated. Use the direct constructor
+  parameters `max_session_length`, `max_idle_time`, and `enable_logging`
+  instead.
+  (PR [#4001](https://github.com/pipecat-ai/pipecat/pull/4001))
+
+- Deprecated `LocalSmartTurnAnalyzerV2` and `LocalCoreMLSmartTurnAnalyzer`. Use
+  `LocalSmartTurnAnalyzerV3` instead. Instantiating these analyzers will now
+  emit a `DeprecationWarning`.
+  (PR [#4012](https://github.com/pipecat-ai/pipecat/pull/4012))
+
+- Deprecated `WakeCheckFilter` in favor of `WakePhraseUserTurnStartStrategy`.
+  (PR [#4064](https://github.com/pipecat-ai/pipecat/pull/4064))
+
+### Fixed
+
+- Fixed an issue where the default model for `OpenAILLMService` and
+  `AzureLLMService` was mistakenly reverted to `gpt-4o`. The defaults are now
+  restored to `gpt-4.1`.
+  (PR [#4000](https://github.com/pipecat-ai/pipecat/pull/4000))
+
+- Fixed a race condition where `EndTaskFrame` could cause the pipeline to shut
+  down before in-flight frames (e.g. LLM function call responses) finished
+  processing. `EndTaskFrame` and `StopTaskFrame` now flow through the pipeline
+  as `ControlFrame`s, ensuring all pending work is flushed before shutdown
+  begins. `CancelTaskFrame` and `InterruptionTaskFrame` remain immediate
+  (`SystemFrame`).
+  (PR [#4006](https://github.com/pipecat-ai/pipecat/pull/4006))
+
+- Fixed `ParallelPipeline` dropping or misordering frames during lifecycle
+  synchronization. Buffered frames are now flushed in the correct order
+  relative to synchronization frames (`StartFrame` goes first,
+  `EndFrame`/`CancelFrame` go after), and frames added to the buffer during
+  flush are also drained.
+  (PR [#4007](https://github.com/pipecat-ai/pipecat/pull/4007))
+
+- Fixed `TTSService` potentially canceling in-flight audio during shutdown. The
+  stop sequence now waits for all queued audio contexts to finish processing
+  before canceling the stop frame task.
+  (PR [#4007](https://github.com/pipecat-ai/pipecat/pull/4007))
+
+- Fixed `Language` enum values (e.g. `Language.ES`) not being converted to
+  service-specific codes when passed via
+  `settings=Service.Settings(language=Language.ES)` at init time. This caused
+  API errors (e.g. 400 from Rime) because the raw enum was sent instead of the
+  expected language code (e.g. `"spa"`). Runtime updates via
+  `UpdateSettingsFrame` were unaffected. The fix centralizes conversion in the
+  base `TTSService` and `STTService` classes so all services handle this
+  consistently.
+  (PR [#4024](https://github.com/pipecat-ai/pipecat/pull/4024))
+
+- Fixed `DeepgramSTTService` ignoring the `base_url` scheme when using `ws://`
+  or `http://`. Previously these were silently overwritten with `wss://` /
+  `https://`, breaking air-gapped or private deployments that don't use TLS.
+  All scheme choices (`wss://`, `https://`, `ws://`, `http://`, or bare
+  hostname) are now respected.
+  (PR [#4026](https://github.com/pipecat-ai/pipecat/pull/4026))
+
+- Fixed `LLMSwitcher.register_function()` and `register_direct_function()` not
+  accepting or forwarding the `timeout_secs` parameter.
+  (PR [#4037](https://github.com/pipecat-ai/pipecat/pull/4037))
+
+- Fixed empty user transcriptions in Nova Sonic causing spurious interruptions.
+  Previously, an empty transcription could trigger an interruption of the
+  assistant's response even though the user hadn't actually spoken.
+  (PR [#4042](https://github.com/pipecat-ai/pipecat/pull/4042))
+
+- Fixed `SonioxSTTService` and `OpenAIRealtimeSTTService` crash when language
+  parameters contain plain strings instead of `Language` enum values.
+  (PR [#4046](https://github.com/pipecat-ai/pipecat/pull/4046))
+
+- Fixed premature user turn stops caused by late transcriptions arriving
+  between turns. A stale transcript from the previous turn could persist into
+  the next turn and trigger a stop before the current turn's real transcript
+  arrived. Stop strategies are now reset at both turn start and turn stop to
+  prevent state from leaking across turn boundaries.
+  (PR [#4057](https://github.com/pipecat-ai/pipecat/pull/4057))
+
+- Fixed raw language strings like `"de-DE"` silently failing when passed to
+  TTS/STT services (e.g. ElevenLabs producing no audio). Raw strings now go
+  through the same `Language` enum resolution as enum values, so regional codes
+  like `"de-DE"` are properly converted to service-expected formats like
+  `"de"`. Unrecognized strings log a warning instead of failing silently.
+  (PR [#4058](https://github.com/pipecat-ai/pipecat/pull/4058))
+
+- Fixed Deepgram STT list-type settings (`keyterm`, `keywords`, `search`,
+  `redact`, `replace`) being stringified instead of passed as lists to the SDK,
+  which caused them to be sent as literal strings (e.g. `"['pipecat']"`) in the
+  WebSocket query params.
+  (PR [#4063](https://github.com/pipecat-ai/pipecat/pull/4063))
+
+- Fixed `MinWordsUserTurnStartStrategy` including text below the word threshold
+  in the output by resetting aggregation when the minimum word count is not
+  met.
+  (PR [#4064](https://github.com/pipecat-ai/pipecat/pull/4064))
+
+- Fixed audio overlap and potential dropped TTS content when multiple assistant
+  turns occur in quick succession. `TTSService` now flushes remaining text
+  before pausing frame processing on `LLMFullResponseEndFrame`/`EndFrame`,
+  instead of pausing first.
+  (PR [#4071](https://github.com/pipecat-ai/pipecat/pull/4071))
+
+### Security
+
+- Bumped PyJWT minimum version from 2.10.1 to 2.12.0 in the `livekit` extra to
+  address CVE-2026-32597 (GHSA-752w-5fwx-jx9f), where PyJWT <= 2.11.0 accepted
+  unknown `crit` header extensions.
+  (PR [#4035](https://github.com/pipecat-ai/pipecat/pull/4035))
+
 ## [0.0.105] - 2026-03-10
 
 ### Added

changelog/3457.changed.md

@@ -1 +0,0 @@
-- Changed tool result JSON serialization to use `ensure_ascii=False`, preserving UTF-8 characters instead of escaping them. This reduces context size and token usage for non-English languages.

changelog/3991.changed.md

@@ -1 +0,0 @@
-- `OpenAIRealtimeSTTService`'s `noise_reduction` parameter is now part of `OpenAIRealtimeSTTSettings`, making it runtime-updatable via `STTUpdateSettingsFrame`. The direct `noise_reduction` init argument is deprecated as of 0.0.106.

changelog/3997.changed.md

@@ -1 +0,0 @@
-- Updated `sarvamai` dependency from `0.1.26a2` (alpha) to `0.1.26` (stable release).

changelog/4000.fixed.md

@@ -1 +0,0 @@
-- Fixed an issue where the default model for `OpenAILLMService` and `AzureLLMService` was mistakenly reverted to `gpt-4o`. The defaults are now restored to `gpt-4.1`.

changelog/4001.changed.md

@@ -1 +0,0 @@
-- `SimliVideoService` now extends `AIService` instead of `FrameProcessor`, aligning it with the HeyGen and Tavus video services. It supports `SimliVideoService.Settings(...)` for configuration and uses `start()`/`stop()`/`cancel()` lifecycle methods. Existing constructor usage (`api_key`, `face_id`, etc.) remains unchanged.

changelog/4001.deprecated.md

@@ -1 +0,0 @@
-- `SimliVideoService.InputParams` is deprecated. Use the direct constructor parameters `max_session_length`, `max_idle_time`, and `enable_logging` instead.

changelog/4004.added.md

@@ -1 +0,0 @@
-- Added optional `service` field to `ServiceUpdateSettingsFrame` (and its subclasses `LLMUpdateSettingsFrame`, `TTSUpdateSettingsFrame`, `STTUpdateSettingsFrame`) to target a specific service instance. When `service` is set, only the matching service applies the settings; others forward the frame unchanged. This enables updating a single service when multiple services of the same type exist in the pipeline.

changelog/4005.added.md

@@ -1 +0,0 @@
-- Added `sip_provider` and `room_geo` parameters to `configure()` in the Daily runner. These convenience parameters let callers specify a SIP provider name and geographic region directly without manually constructing `DailyRoomProperties` and `DailyRoomSipParams`.

changelog/4006.fixed.md

@@ -1 +0,0 @@
-- Fixed a race condition where `EndTaskFrame` could cause the pipeline to shut down before in-flight frames (e.g. LLM function call responses) finished processing. `EndTaskFrame` and `StopTaskFrame` now flow through the pipeline as `ControlFrame`s, ensuring all pending work is flushed before shutdown begins. `CancelTaskFrame` and `InterruptionTaskFrame` remain immediate (`SystemFrame`).

changelog/4007.fixed.2.md

@@ -1 +0,0 @@
-- Fixed `TTSService` potentially canceling in-flight audio during shutdown. The stop sequence now waits for all queued audio contexts to finish processing before canceling the stop frame task.

changelog/4007.fixed.md

@@ -1 +0,0 @@
-- Fixed `ParallelPipeline` dropping or misordering frames during lifecycle synchronization. Buffered frames are now flushed in the correct order relative to synchronization frames (`StartFrame` goes first, `EndFrame`/`CancelFrame` go after), and frames added to the buffer during flush are also drained.

changelog/4009.added.md

@@ -1 +0,0 @@
-- Added `PerplexityLLMAdapter` that automatically transforms conversation messages to satisfy Perplexity's stricter API constraints (strict role alternation, no non-initial system messages, last message must be user/tool). Previously, certain conversation histories could cause Perplexity API errors that didn't occur with OpenAI (`PerplexityLLMService` subclasses `OpenAILLMService` since Perplexity uses an OpenAI-compatible API).

changelog/4012.deprecated.md

@@ -1 +0,0 @@
-- Deprecated `LocalSmartTurnAnalyzerV2` and `LocalCoreMLSmartTurnAnalyzer`. Use `LocalSmartTurnAnalyzerV3` instead. Instantiating these analyzers will now emit a `DeprecationWarning`.

changelog/4023.changed.md

@@ -1 +0,0 @@
-- Update `pipecat-ai-small-webrtc-prebuilt` to `2.4.0`.

changelog/4024.fixed.md

@@ -1 +0,0 @@
-- Fixed `Language` enum values (e.g. `Language.ES`) not being converted to service-specific codes when passed via `settings=Service.Settings(language=Language.ES)` at init time. This caused API errors (e.g. 400 from Rime) because the raw enum was sent instead of the expected language code (e.g. `"spa"`). Runtime updates via `UpdateSettingsFrame` were unaffected. The fix centralizes conversion in the base `TTSService` and `STTService` classes so all services handle this consistently.

changelog/4026.fixed.md

@@ -1 +0,0 @@
-- Fixed `DeepgramSTTService` ignoring the `base_url` scheme when using `ws://` or `http://`. Previously these were silently overwritten with `wss://` / `https://`, breaking air-gapped or private deployments that don't use TLS. All scheme choices (`wss://`, `https://`, `ws://`, `http://`, or bare hostname) are now respected.

changelog/4035.security.md

@@ -1 +0,0 @@
-- Bumped PyJWT minimum version from 2.10.1 to 2.12.0 in the `livekit` extra to address CVE-2026-32597 (GHSA-752w-5fwx-jx9f), where PyJWT <= 2.11.0 accepted unknown `crit` header extensions.

changelog/4037.fixed.md

@@ -1 +0,0 @@
-- Fixed `LLMSwitcher.register_function()` and `register_direct_function()` not accepting or forwarding the `timeout_secs` parameter.

changelog/4042.changed.md

@@ -1 +0,0 @@
-- Nova Sonic assistant text transcripts are now delivered in real-time using speculative text events instead of delayed final text events. Previously, assistant text only arrived after all audio had finished playing, causing laggy transcripts in client UIs. Speculative text arrives before each audio chunk, providing text synchronized with what the bot is saying. This also simplifies the internal text handling by removing the interruption re-push hack and assistant text buffer.

changelog/4042.fixed.md

@@ -1 +0,0 @@
-- Fixed empty user transcriptions in Nova Sonic causing spurious interruptions. Previously, an empty transcription could trigger an interruption of the assistant's response even though the user hadn't actually spoken.

changelog/4046.fixed.md

@@ -1 +0,0 @@
-Fixed `SonioxSTTService` and `OpenAIRealtimeSTTService` crash when language parameters contain plain strings instead of `Language` enum values.

changelog/4047.added.md

@@ -1 +0,0 @@
-- Added DTMF input event support to the Daily transport. Incoming DTMF tones are now received via Daily's `on_dtmf_event` callback and pushed into the pipeline as `InputDTMFFrame`, enabling bots to react to keypad presses from phone callers.

changelog/4047.changed.md

@@ -1 +0,0 @@
-- Updated `daily-python` dependency to 0.25.0.

changelog/4048.changed.md

@@ -1 +0,0 @@
-- Added `enable_dialout` parameter to `configure()` in `pipecat.runner.daily` to support dial-out rooms. Also narrowed misleading `Optional` type hints and deduplicated token expiry calculation.

changelog/4057.fixed.md

@@ -1 +0,0 @@
-- Fixed premature user turn stops caused by late transcriptions arriving between turns. A stale transcript from the previous turn could persist into the next turn and trigger a stop before the current turn's real transcript arrived. Stop strategies are now reset at both turn start and turn stop to prevent state from leaking across turn boundaries.

changelog/4058.fixed.md

@@ -1 +0,0 @@
-- Fixed raw language strings like `"de-DE"` silently failing when passed to TTS/STT services (e.g. ElevenLabs producing no audio). Raw strings now go through the same `Language` enum resolution as enum values, so regional codes like `"de-DE"` are properly converted to service-expected formats like `"de"`. Unrecognized strings log a warning instead of failing silently.

changelog/4063.fixed.md

@@ -1 +0,0 @@
-- Fixed Deepgram STT list-type settings (`keyterm`, `keywords`, `search`, `redact`, `replace`) being stringified instead of passed as lists to the SDK, which caused them to be sent as literal strings (e.g. `"['pipecat']"`) in the WebSocket query params.

changelog/4064.added.2.md

@@ -1 +0,0 @@
-- Added `default_user_turn_start_strategies()` and `default_user_turn_stop_strategies()` helper functions for composing custom strategy lists.

changelog/4064.added.md

@@ -1 +0,0 @@
-- Added `WakePhraseUserTurnStartStrategy` for triggering user turns based on wake phrases, with support for `single_activation` mode. Deprecates `WakeCheckFilter`.

changelog/4064.changed.md

@@ -1 +0,0 @@
-- Extended `ProcessFrameResult` to stop strategies, allowing a stop strategy to short-circuit evaluation of subsequent strategies by returning `STOP`.

changelog/4064.deprecated.md

@@ -1 +0,0 @@
-- Deprecated `WakeCheckFilter` in favor of `WakePhraseUserTurnStartStrategy`.

changelog/4064.fixed.md

@@ -1 +0,0 @@
-- Fixed `MinWordsUserTurnStartStrategy` including text below the word threshold in the output by resetting aggregation when the minimum word count is not met.

changelog/4066.changed.2.md

@@ -1 +0,0 @@
-- `GradiumSTTService` now takes both an `encoding` and `sample_rate` constructor argument which is assmebled in the class to form the `input_format`. PCM accepts `8000`, `16000`, and `24000` Hz sample rates.

changelog/4066.changed.md

@@ -1 +0,0 @@
-- Improved `GradiumSTTService` transcription accuracy by reworking how text fragments are accumulated and finalized. Previously, trailing words could be dropped when the server's `flushed` response arrived before all text tokens were delivered. The service now uses a short aggregation delay after flush to capture trailing tokens, producing complete utterances.

changelog/4071.fixed.md

@@ -1 +0,0 @@
-- Fixed audio overlap and potential dropped TTS content when multiple assistant turns occur in quick succession. `TTSService` now flushes remaining text before pausing frame processing on `LLMFullResponseEndFrame`/`EndFrame`, instead of pausing first.