# March 9, 2026

### ElevenAgents

- **New LLM options**: Added [claude-sonnet-4-6](https://www.anthropic.com/claude/sonnet) and `gemini-3.1-flash-lite-preview` as supported LLM providers for agent conversation configuration.

- **Guardrail execution mode**: Custom guardrails now support a configurable `execution_mode` field with the `GuardrailExecutionMode` enum, and have separate input and output schema definitions. This allows more precise control over when guardrail logic runs and which message direction it applies to.

- **Guardrail triggered client event**: Added `guardrail_triggered` to the `ClientEvent` enum, enabling agent workflows and client-side handlers to respond when a guardrail fires during a conversation.

- **Batch calling concurrency**: Added `target_concurrency_limit` field to the [submit batch call](/guides/changelog-api-reference-batch-calling-create) request body, allowing you to control the target number of concurrent calls for a given batch.

- **Agent testing type filter**: The [list agent tests](https://elevenlabs.io/docs/api-reference/tests/list) endpoint now accepts a `types` query parameter to filter results by test type. The `include_folders` query parameter is deprecated in favor of the new `types` filter.

- **Telephony call configuration**: Added `telephony_call_config` to outbound call request schemas for [Twilio](/guides/changelog-api-reference-integrations-twilio-outbound-call) and [SIP trunk](/guides/changelog-api-reference-sip-trunk-outbound-call) calls, with a default `ringing_timeout_secs` of 60 seconds.

- **WhatsApp audio message responses**: Added `enable_audio_message_response` to WhatsApp account configuration, enabling agents to send audio messages in addition to text in WhatsApp conversations.

### ElevenCreative Studio

- **ElevenCreative Studio agent settings**: ElevenCreative Studio project models now expose an `agent_settings` field using `StudioAgentSettingsModel`, giving agent-connected studio projects a consistent settings surface alongside the new `StudioAgentToolSettingsModel`.

### Mobile

- **SAML SSO for iOS and Android**: Enterprise customers using SAML-based identity providers can now sign in from the ElevenLabs iOS and Android apps.

### Speech to Text

- **No verbatim transcription mode**: Added `no_verbatim` as a transcription option on the [convert speech to text](/guides/changelog-api-reference-text-to-dialogue-convert) endpoint, allowing the model to produce cleaned-up output rather than a verbatim transcript.

### Music

- **SDK CRLF fix**: Resolved an issue in the Python and JavaScript SDKs where the [generate music detailed](/guides/changelog-api-reference-music-compose-detailed) endpoint response was not correctly parsed when the server used `\r\n\r\n` line endings. The parsers now handle both `\r\n` and `\n` line endings.

### Voices

- **Voice captcha font support for non-Latin scripts**: Fixed an issue where the instant voice cloning captcha displayed unreadable characters for some non-Latin scripts. Added font support and correct language selection for Hebrew, Thai, Armenian, Georgian, Malayalam, Telugu, and Gurmukhi. The captcha now uses the actual language of the cloned voice rather than defaulting to English.

### SDK Releases

#### JavaScript SDK

- [v2.38.0](https://github.com/elevenlabs/elevenlabs-js/releases/tag/v2.38.0) - Fern regeneration to match the latest API schema, including new ElevenAgents fields, updated SMB tool types, and studio agent settings.
- [v2.38.1](https://github.com/elevenlabs/elevenlabs-js/releases/tag/v2.38.1) - Fixed CRLF parsing for the music detailed endpoint response stream.

#### Python SDK

- [v2.38.0](https://github.com/elevenlabs/elevenlabs-python/releases/tag/v2.38.0) - Fern regeneration to match the latest API schema, including new ElevenAgents fields, updated SMB tool types, and studio agent settings.
- [v2.38.1](https://github.com/elevenlabs/elevenlabs-python/releases/tag/v2.38.1) - Fixed CRLF parsing for the music detailed endpoint response stream.

#### Packages

- [@elevenlabs/convai-widget-core@0.10.1](https://github.com/elevenlabs/packages/releases/tag/@elevenlabs/convai-widget-core@0.10.1) - Fixed a widget crash on Wix sites where Wix security hardening makes `addEventListener` non-writable.
- [@elevenlabs/convai-widget-core@0.10.2](https://github.com/elevenlabs/packages/releases/tag/@elevenlabs/convai-widget-core@0.10.2) - Registered missing `livekit-client` pnpm patch in `patchedDependencies`.
- [@elevenlabs/convai-widget-embed@0.10.1](https://github.com/elevenlabs/packages/releases/tag/@elevenlabs/convai-widget-embed@0.10.1) - Fixed a widget crash on Wix sites where `addEventListener` is non-writable.
- [@elevenlabs/convai-widget-embed@0.10.2](https://github.com/elevenlabs/packages/releases/tag/@elevenlabs/convai-widget-embed@0.10.2) - Registered missing `livekit-client` pnpm patch in `patchedDependencies`.

### API

:::accordion{title="View API changes"}
## Updated Endpoints

### ElevenAgents

- [Create agent](https://elevenlabs.io/docs/api-reference/agents/create)

  - Added `enable_versioning` query parameter (boolean, optional) to enable version tracking on creation

- [Update agent](https://elevenlabs.io/docs/api-reference/agents/update)

  - Added `enable_versioning_if_not_enabled` query parameter (boolean, optional) to opt existing agents into versioning

- [List agent tests](https://elevenlabs.io/docs/api-reference/tests/list)

  - Added `types` query parameter (string, optional) to filter tests by type
  - Deprecated `include_folders` query parameter

- [Submit batch call](/guides/changelog-api-reference-batch-calling-create)

  - Added `target_concurrency_limit` field (integer, optional) to set the target number of concurrent calls

- [Twilio outbound call](/guides/changelog-api-reference-integrations-twilio-outbound-call), [SIP trunk outbound call](/guides/changelog-api-reference-sip-trunk-outbound-call)

  - Added `telephony_call_config` field with `TelephonyCallConfig` schema (default `ringing_timeout_secs: 60`)

- [Get conversation](/guides/changelog-api-reference-conversations-get)

  - Added `environment` field to conversation records

- [Get WhatsApp account](/guides/changelog-api-reference-integrations-whats-app-accounts-get), [Update WhatsApp account](https://elevenlabs.io/docs/api-reference/whats-app/accounts/update)
  - Added `enable_audio_message_response` field (boolean, optional)

### Speech to Text

- [Convert speech to text](/guides/changelog-api-reference-text-to-dialogue-convert)
  - Added `no_verbatim` transcription option
  - Removed `scribe_v2_turbo` from `ASRProvider` enum

### Audio Native

- [Update Audio Native content](https://elevenlabs.io/docs/api-reference/audio-native/update)
  - Made `author` and `title` fields optional in update requests

### ElevenCreative Studio

- [Get project](/guides/api-reference-studio-get-project), [Add project](/guides/api-reference-studio-add-project), [Update project](/guides/api-reference-studio-edit-project)
  - Added `agent_settings` field using `StudioAgentSettingsModel`
  - Clip responses now include `playback_speed` field

## Schema Changes

### New Schemas

- `TelephonyCallConfig` - Configuration for telephony outbound calls including `ringing_timeout_secs`
- `GuardrailExecutionMode` - Enum controlling when custom guardrail logic executes
- `StudioAgentSettingsModel` - Agent settings attached to studio projects
- `StudioAgentToolSettingsModel` - Tool-level settings within studio agent configuration
- `CheckServiceAvailabilityParams`, `CreateAssetParams`, `CreateClientAppointmentParams` - Additional SMB tool discriminated parameter types for rental and appointment workflows

### Modified Schemas

- `ClientEvent` - Added `guardrail_triggered` enum value
- `CustomGuardrailConfig` - Added `execution_mode` field (string, optional) and separate input/output schema definitions
- `ConversationUserResponseModel` - `last_contact_agent_id` is now nullable and non-required
- `SMBToolConfig` - Added rental and appointment operation types with corresponding parameter schemas
:::

## Related pages

- [Administration](./administration-index.md)
- [API reference](./api-reference-index.md)
- [Changelog](./changelog-index.md)
- [ElevenAgents](./elevenagents-index.md)
- [ElevenAPI](./elevenapi-index.md)
- [ElevenCreative](./elevencreative-index.md)
- [ElevenLabs Documentation Docs](../index.md)
- [General Troubleshooting FAQ](./troubleshooting-index.md)
- [General Website FAQ](./website-index.md)
- [Help Center](./help-center-2-index.md)

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