# SDK Releases: JavaScript SDK v2.63.0 - Added realtime Speech to Text options for secondary languages

By Steven Van · 2026-08-10

JavaScript SDK v2.63.0 - Added realtime Speech to Text options for secondary languages, language and entity detection, background audio filtering, logging…

The [ElevenLabs](<https://creatorstoolbox.com/tools/elevenlabs>) JavaScript SDK reached **v2.63.0**, with additions focused on real-time speech to text for conversations that switch languages.

- Speech to text gains options for a secondary language, plus automatic language and entity detection.

- New background audio filtering and logging options.

- Single-use token authentication is now supported.

- New events cover final transcripts, detected entities and invalid requests.

The [release](<https://elevenlabs.io/docs/changelog/2026/8/10#sdk-releases>) also fixes unaccepted terms dispatch, duplicate audio\_format parameters and inclusive VAD bounds. The Python SDK shipped the same set of changes in its own v2.63.0.

[![](<https://elevenlabs.io/docs/api/fern-docs/og?slug=docs%2Fchangelog%2F2026%2F8%2F10>)](<https://elevenlabs.io/docs/changelog/2026/8/10#sdk-releases>)

![ElevenLabs](<https://elevenlabs.io/android-chrome-512x512.png>)

ElevenLabs

AI audio platform for text to speech, voice cloning, and video dubbing across dozens of languages while preserving the original tone and emotion.

[View ElevenLabs →](<https://creatorstoolbox.com/tools/elevenlabs>)

Sources

[Original source](<https://elevenlabs.io/docs/changelog/2026/8/10#sdk-releases>)

[Read SDK Releases: JavaScript SDK v2.63.0 - Added realtime Speech to Text options for secondary languages on Creators Toolbox](<https://creatorstoolbox.com/blog/elevenlabs-sdk-releases-javascript-sdk-v2-63-0-added-realtime-speech-to-text-opt>)

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Canonical source: https://creatorstoolbox.com/blog/elevenlabs-sdk-releases-javascript-sdk-v2-63-0-added-realtime-speech-to-text-opt