Data and AI releases

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Text to Speech

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- language_code behavior: TTS request schemas clarify that unsupported language_code values are ignored rather than rejected, and that language_code is not supported on multilingual_v2 models.

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Also shipped Jun 29, 2026ElevenLabs in June 2026 →

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ElevenAgents

- Branch merge and rebase previews: Added Preview merged configuration (GET /v1/convai/agents/{agent_id}/branches/{source_branch_id}/merge-preview) and preview rebased configuration (GET /v1/convai/agents/{agent_id}/branches/{branch_id}/rebase-preview) to inspect merged or rebased agent configuration before committing.

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Speech to Text

- Combined multichannel output: Convert speech to text adds optional multichannel_output_style (separate default | combined) when use_multi_channel is enabled. Set combined to receive a single transcript with all channels merged and sorted by time instead of per-channel transcripts.

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Workspaces

- Third-party API key disabling policy: Added Set workspace third-party disabling policy (POST /v1/workspaces/api-keys/third-party-disabling) for workspace-wide control over whether API key holders can self-disable keys via the third-party disable endpoint.

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SDK Releases: JavaScript SDK

- v2.55.0 - Regenerated from the latest OpenAPI schema with branch merge and rebase preview clients, branch call-volume metrics, auth connection status fields, tool response filtering types, speech-to-text combined multichannel output, and workspace third-party API key disabling policy.

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SDK Releases: Python SDK

- v2.55.0 - Regenerated from the latest OpenAPI schema with branch merge and rebase preview clients, branch call-volume metrics, auth connection status fields, tool response filtering models, speech-to-text combined multichannel output, and workspace third-party API key disabling policy.

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SDK Releases: Packages

- @elevenlabs/client@1.13.0 - sendFeedback(like, eventId?) accepts an optional event_id to rate a specific past message. canSendFeedback now reflects connection state so feedback can be sent for any message while the session is live. @elevenlabs/client@1.14.0 - sendFeedback accepts null as the first argument to clear feedback on an event (score: null).

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SDK Releases: Android SDK

- v0.10.0 - Exposed reconciled message transcript as StateFlow. Deprecated text and agent callbacks in favor of event-id variants. v0.11.0 - Added audio frame callback for per-frame audio inspection during conversations.

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