> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.vapi.ai/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.vapi.ai/_mcp/server.

1. **Specify Start Node in Workflows with `isStart` Property**: You can now explicitly define the starting point of your workflow by setting the `isStart` property to `true` on any node like [`Say`](https://api.vapi.ai/api#:~:text=Say), [`Gather`](https://api.vapi.ai/api#:~:text=Gather), or [`Hangup`](https://api.vapi.ai/api#:~:text=Hangup).

2. **Updated Model Options in `GroqModel`**: You can now use the following new Assistant modles with [Groq](https://api.vapi.ai/api#:~:text=GroqModel):
   * `meta-llama/llama-4-maverick-17b-128e-instruct`
   * `meta-llama/llama-4-scout-17b-16e-instruct`
   * `mistral-saba-24b`
   * `compound-beta`
   * `compound-beta-mini`

![New Groq Models](/_fern-img/253b89b11e3adcdfdf6903240fbcc55d9efbe2b4f124b4099423a2a4f6e32d07.webp)

> **Warning**
>
> Note that some older models have been removed, including `llama-3.1-70b-versatile` and `mixtral-8x7b-32768`.

3. **New `Kylie` Voice Available in Vapi**: You can now use the new `Kylie` voice when using [`Vapi` as your voice provider](https://dashboard.vapi.ai/assistants#:~:text=Voice%20Configuration). You can learn more in the [Vapi voices documentation](https://docs.vapi.ai/providers/voice/vapi-voicesn).

![New Kylie Voice](/_fern-img/c665cb39151e5f0c7dab0dd3b1a72703e6a296251d66341d6c2b23169543334f.webp)