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ElevenLabs releases March 2026 update with agent conversation filtering and improved SIP integration
· releasefeatureapisdkintegration · elevenlabs.io ↗

ElevenAgents Enhancements

The platform introduced powerful conversation filtering capabilities to the list conversations and text search conversations endpoints, now accepting tool_names_successful and tool_names_errored query parameters to filter by tool execution outcomes.

SIP Integration & User Management Improvements:

  • Custom SIP X- headers from inbound calls are now automatically exposed as dynamic variables (e.g., {{sip_contact_id}}, {{sip_campaign_id}}), making them accessible in agent prompts and conversation history
  • The list users endpoint now supports sort_by (by last_contact_unix_secs or conversation_count) and branch_id filtering
  • Users page is now generally available, providing a unified view of all agents' users, conversation history, and contact details

API & Configuration Updates:

  • The delete tool endpoint now accepts a force parameter to delete tools regardless of agent dependencies
  • New conversation_embedding_retention_days field controls how long embeddings are retained (max 365 days, defaults to 30)
  • Added ContentThresholdGuardrail schema for threshold-based content moderation

Workspace & Infrastructure Improvements

A new GET /v1/workspace/groups endpoint provides comprehensive workspace group management, returning group metadata including members, permissions, and usage limits. Bulk workspace invitations now support the seat_type field to specify user roles during batch operations. Mobile SSO reliability has been improved, fixing authentication hangs and workspace switching issues for SAML/OIDC users.

Music & Studio Enhancements

The Music API's generate music detailed endpoint now supports a respect_sections_durations parameter for stricter control over section timing. Studio projects gained visual customization options with text_shadow and text_outline styling, plus a new has_visual_content boolean field in chapter responses and support for media generation clip tasks.

SDK Updates Across All Platforms

Python (v2.39.0-2.39.1): Added multimodal message WebSocket event support and schema regeneration.

JavaScript (v2.39.0): Schema regeneration to match latest API.

iOS (v3.1.0): Major improvements including event-based agent state management, server error surfacing through callbacks, software muting alongside speech detection, Swift Concurrency migration, startup crash fixes, and branding updates.

JavaScript Packages: Audio resampling support in @elevenlabs/client@0.15.1 improves cross-device compatibility; React and widget components updated accordingly.