> ## 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 November, 2025

> Explore the latest features, improvements, and API updates introduced in November 2025 for Bolna Voice AI agents.

<Update label="26th Nov, 2025">
  ## Support for AiSensy WhatsApp messaging

  Bolna now supports **AiSensy** for sending WhatsApp messages, enabling seamless WhatsApp outreach as part of your workflows and campaigns.
</Update>

<Update label="16th Nov, 2025">
  ## Configurable Style exaggeration parameter for ElevenLabs

  We've added **Style Exaggeration** controls for ElevenLabs voices, allowing you to fine-tune how expressive and stylistic the generated speech sounds.

  * Increase exaggeration for more dramatic, expressive delivery.
  * Reduce it for a more neutral and natural speaking style.

  <Frame caption="These settings are now available across all supported ElevenLabs voices.">
    <img src="https://mintcdn.com/bolna-54a2d4fe/XrsLF7QpWPpV2sSG/images/changelog/16_november_2025_elevenlabs_voice_exaggeration.png?fit=max&auto=format&n=XrsLF7QpWPpV2sSG&q=85&s=d896ea21bff906b50fc1eb998881d4c4" alt="ElevenLabs style exaggeration control in Bolna for adjusting expressiveness of text-to-speech output" width="1636" height="848" data-path="images/changelog/16_november_2025_elevenlabs_voice_exaggeration.png" />
  </Frame>
</Update>

<Update label="12th Nov, 2025">
  ## Revamped workflows and campaigns

  Bolna workflows and campaigns have been refreshed for a smoother build-and-run experience. Follow the step-by-step guide in [this doc](/workflows-and-campaigns#creating-workflows) to create and launch workflows.

  * Build multi-step outreach flows with calls, WhatsApp, and email automation.
</Update>

<Update label="7th Nov, 2025">
  ## Detailed latency metrics for Voice AI calls

  Bolna now provides comprehensive latency metrics for every Voice AI call. Learn more in the [latencies](/call-latencies) documentation.

  * Monitor and optimize the performance of your conversational AI agents.
  * Gain clear visibility into where time is spent across the conversation pipeline.
  * Analyze latency using overall averages and percentiles such as P50, P90, and P95.
</Update>

<Update label="4th Nov, 2025">
  ## We've added new configurable voice parameters for finer control over ElevenLabs TTS output:

  * **Similarity Boost** – Adjusts how closely the generated voice matches the original reference voice.
  * **Stability** – Controls variation in tone and expression, helping balance naturalness with consistency.

  <Frame caption="These settings are now available across all supported ElevenLabs voices.">
    <img src="https://mintcdn.com/bolna-54a2d4fe/wGMsKRPKze41oXTD/images/changelog/4_november_2025_elevenlabs_voice_settings.png?fit=max&auto=format&n=wGMsKRPKze41oXTD&q=85&s=7b69c313880f7ef9030ac3cd61bf773c" alt="ElevenLabs voice settings in Bolna showing configurable parameters like Similarity Boost and Stability for TTS output control" width="1684" height="490" data-path="images/changelog/4_november_2025_elevenlabs_voice_settings.png" />
  </Frame>
</Update>

<Update label="2nd Nov, 2025">
  ## Voice cloning available for Cartesia `sonic-3` models

  * You can now clone your voices using Cartesia's latest `sonic-3` text-to-speech model for the following languages:
    | Language  | Language code | BCP Format |
    | --------- | ------------- | ---------- |
    | English   | en            | bn-IN      |
    | Bengali   | bn            | bn-IN      |
    | Gujarati  | gu            | gu-IN      |
    | Hindi     | hi            | hi-IN      |
    | Kannada   | kn            | kn-IN      |
    | Malayalam | ml            | ml-IN      |
    | Marathi   | mr            | mr-IN      |
    | Punjabi   | pa            | pa-IN      |
    | Tamil     | ta            | ta-IN      |
    | Telugu    | te            | te-IN      |
</Update>