For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
Conversation ID in Twilio/SIP webhooks: The conversation_id is now included in webhook payloads when fetching conversation initiation client data for Twilio, SIP, and WhatsApp integrations. This enables real-time monitoring without polling the API to retrieve conversation IDs.
Agent versioning fields: Agent response models now include version_id, branch_id, and main_branch_id fields (nullable strings) for tracking agent versions and branches.
Conversation version tracking: Added version_id field to conversation models to identify the agent version used for each conversation.
Batch call enhancements: The BatchCallRecipientStatus enum now includes dispatched status, and batch call responses include total_calls_finished field with improved defaults for tracking.
Voices
Collection IDs: Voice models now include a collection_ids field (array of strings, nullable) indicating which collections a voice belongs to.
Voice type filter expansion: The GET /v2/voices endpoint now supports saved as a voice_type filter value for retrieving non-default voices that have been added to a collection.
SDK Releases
Python SDK
v2.28.0 - Updated API schema with agent versioning fields, voice collection IDs, batch call enhancements, and phone number labels
JavaScript SDK
v2.29.0 - Updated API schema with agent versioning fields, voice collection IDs, batch call enhancements, and phone number labels
