> ## Documentation Index
> Fetch the complete documentation index at: https://www.bolna.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Bolna AI Updates for September, 2026

> September 2026 Bolna changelog: multilingual voice agents now switch languages mid-call more accurately, without being tripped up by a stray word, a number, or an OTP.

<Update label="1st September, 2026">
  ## 🌐 More accurate language switching for multilingual agents

  If your voice agent speaks more than one language, it's now much better at telling when a caller has *actually* switched languages, instead of reacting to a single stray word.

  **Before:** one borrowed word — like an English word inside a Hindi sentence — could make the agent switch languages by mistake.

  **Now:**

  * The agent only switches when the caller speaks a full sentence in another language, or clearly asks for one by name.
  * Everyday things like "okay," a phone number, or an OTP no longer count as a language change, even mid-sentence.
  * If the agent misreads a word, it recovers on the caller's next turn instead of staying stuck in the wrong language.

  This works automatically for every multilingual agent — no setup changes needed.

  📘 [How Language Switching Works](/docs/customizations/language-switching-behavior)
</Update>