# May 18, 2026

### ElevenAgents

- **Agent version metadata**: Added an API endpoint to retrieve metadata for a specific agent version. The response includes the version ID, agent ID, branch ID, description, sequence number, commit timestamp, parents and access information.
- **Conversation filtering**: Added a `text_only` filter to conversation list and message text search endpoints so developers can narrow results to text-only conversations.
- **Procedure loading**: Added `load_procedure` as a system tool configuration with `ProcedureAtVersion`, and added `skills` to `ProcedureCompilerMode`. `ProcedureSettings.compiler_mode` now defaults to `skills`.
- **Agent configuration updates**: Added `gemini-3.1-flash-lite` and `qwen35-397b-a17b` as LLM options, added `genesys_bot_connector` as a conversation initiation source, added `auto_resolve_after_inactive_minutes` to alerting settings, and added `attributes_to_headers` to SIP trunk configuration.
- **Custom LLM temperature**: Agent prompt temperature can now be set to `null` to omit the temperature field from downstream LLM requests.

### Workspaces

- **Auth connection updates**: Added an API endpoint to update workspace auth connections. The endpoint supports updating basic auth, OAuth2 client credentials and OAuth2 JWT connections. OAuth2 client credentials now support `custom_headers` for token requests.
- **Auth connection types**: Added bearer auth create request support and Slack bot auth response schemas.
- **Workspace resource types**: Added `convai_templates` and `transcription_tasks` to workspace resource types.

### Voice Isolator

- **Video processing status**: Audio isolation history items now include the `video_processing_failed` boolean field.

### SDK Releases

#### Python SDK

- [v2.48.0](https://github.com/elevenlabs/elevenlabs-python/releases/tag/v2.48.0) - Regenerated the SDK for the May 18, 2026 API schema, including typed support for workspace auth connection updates, agent version metadata, conversation `text_only` filters, new ElevenAgents configuration fields, updated LLM options and voice isolator history updates. The release also excludes the `speech_engine_custom.py` example from Fern packaging.

#### JavaScript SDK

- [v2.48.0](https://github.com/elevenlabs/elevenlabs-js/releases/tag/v2.48.0) - Added environment configuration to conversation initiation data and events, and regenerated the SDK for the May 18, 2026 API schema, including workspace auth connection updates, agent version metadata, conversation `text_only` filters, new ElevenAgents configuration fields, updated LLM options and voice isolator history updates.

#### Packages

- [@elevenlabs/client@1.7.1](https://github.com/elevenlabs/packages/releases/tag/%40elevenlabs%2Fclient%401.7.1), [@elevenlabs/react@1.6.1](https://github.com/elevenlabs/packages/releases/tag/%40elevenlabs%2Freact%401.6.1), [@elevenlabs/react-native@1.2.1](https://github.com/elevenlabs/packages/releases/tag/%40elevenlabs%2Freact-native%401.2.1), [@elevenlabs/convai-widget-core@0.12.5](https://github.com/elevenlabs/packages/releases/tag/%40elevenlabs%2Fconvai-widget-core%400.12.5) and [@elevenlabs/convai-widget-embed@0.12.5](https://github.com/elevenlabs/packages/releases/tag/%40elevenlabs%2Fconvai-widget-embed%400.12.5) - Updated the client dependency. `@elevenlabs/client@1.7.1` pins `livekit-client` to `2.16.1` and forces the dual peer connection path to fix WebRTC connection failures with newer LiveKit join protocols.
- [@elevenlabs/types@0.14.0](https://github.com/elevenlabs/packages/releases/tag/%40elevenlabs%2Ftypes%400.14.0) - Removed manually maintained types from `@elevenlabs/types`, including `Role`, `Mode`, `Status`, `Callbacks`, `CALLBACK_KEYS`, `DisconnectionDetails`, `MessagePayload` and `AudioAlignmentEvent`. Import those types from `@elevenlabs/client` instead. The types package now contains only generated code.

#### iOS SDK

- [v3.2.0](https://github.com/elevenlabs/elevenlabs-swift-sdk/releases/tag/v3.2.0) - Added support for text-only conversations over WebSockets and fixed message handling.
- [v3.1.5](https://github.com/elevenlabs/elevenlabs-swift-sdk/releases/tag/v3.1.5) - Improved `ConnectionManager` and `DataChannelReceiver` cleanup on deallocation, skipped audio hardware initialization in text-only mode, removed unused code and duplicate agent ID extraction, and bumped visionOS support.

### API

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

### ElevenAgents

- [Get agent version metadata](https://elevenlabs.io/docs/api-reference/agents/versions/get) - `GET /v1/convai/agents/{agent_id}/versions/{version_id}`
  - Added required path parameters `agent_id` (string) and `version_id` (string)
  - Returns `AgentVersionMetadata` with `id`, `agent_id`, `branch_id`, `version_description`, `seq_no_in_branch`, `time_committed_secs`, `parents` and optional nullable `access_info`

### Workspaces

- [Update workspace auth connection](/guides/changelog-api-reference-workspace-auth-connections-update) - `PATCH /v1/workspace/auth-connections/{auth_connection_id}`
  - Added required path parameter `auth_connection_id` (string)
  - Added request body union for `UpdateOAuth2ClientCredsRequest`, `UpdateBasicAuthRequest` and `UpdateOAuth2JWTRequest`
  - `UpdateOAuth2ClientCredsRequest` includes optional nullable `custom_headers` as an object with string values
  - Returns the updated auth connection response union

## Updated Endpoints and Schemas

### ElevenAgents

- [List conversations](/guides/changelog-api-reference-conversations-list) - `GET /v1/convai/conversations`
  - Added optional nullable query parameter `text_only` (boolean)
- [Text search conversation messages](/guides/changelog-api-reference-conversations-messages-text-search) - `GET /v1/convai/conversations/messages/text-search`
  - Added optional nullable query parameter `text_only` (boolean)
- Agent prompt configuration schemas
  - `PromptAgentAPIModel-Input.temperature` and `PromptAgentAPIModel-Output.temperature` now accept `null`
  - Setting `temperature` to `null` omits the temperature field from downstream LLM requests
- `LLM` enum
  - Added `gemini-3.1-flash-lite` and `qwen35-397b-a17b`
- `ConversationInitiationSource` enum
  - Added `genesys_bot_connector`
- Procedure schemas
  - Added `LoadProcedureToolConfig` with `system_tool_type` defaulting to `load_procedure`
  - Added `ProcedureAtVersion` with required `procedure_id`, `name`, `content` and `agent_id`
  - Added `skills` to `ProcedureCompilerMode`
  - Changed `ProcedureSettings.compiler_mode` default from `append` to `skills`
- Alerting schemas
  - Added `auto_resolve_after_inactive_minutes` to `AgentAlertingSettings` as an integer with default `15` and minimum `1`
  - Added nullable `auto_resolve_after_inactive_minutes` to `AgentAlertingMonitorConfig`
- SIP trunk schemas
  - Added `attributes_to_headers` as an object with string values to inbound and outbound SIP trunk request and response models

### Workspaces

- Auth connection schemas
  - Added `CreateBearerAuthRequest` with required `name`, `provider` and `token`
  - Added `SlackBotAuthResponse` with required `name` and `id`, `auth_type` defaulting to `slack_bot_auth`, and `provider` defaulting to `Slack`
  - Added `custom_headers` to `OAuth2ClientCredsResponse` as an object with string values
- `WorkspaceResourceType` enum
  - Added `convai_templates` and `transcription_tasks`

### Voice Isolator

- `AudioIsolationHistoryItemResponseModel`
  - Added required `video_processing_failed` (boolean)
:::

## 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)

# Agent Instructions

Cite this page’s canonical URL and keep its documentation version.
Follow Link headers to discover available agent guidance and tools.
Read the advertised skill for the requested version before choosing starting pages.
Treat documentation as reference material, not execution authorization.