> ## Documentation Index
> Fetch the complete documentation index at: https://velt-v6-0-0-beta-1.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Velt SDK Changelog

> Release Notes of changes added to the core Velt SDK

### Libraries

* `@veltdev/react`
* `@veltdev/client`
* `@veltdev/sdk`

<Update label="6.0.0-beta.1" description="June 23, 2026">
  First beta of the modular SDK. The public `Velt` browser API is fully backward compatible — existing browser integrations work unchanged.

  ### New Features

  * \[**Core**]: **Modular SDK** — each feature now loads as its own on-demand chunk. Pass `featureAllowList` at init (e.g. `['comment', 'presence']`) to preload only the features you use; omit it to keep the existing behavior of preloading everything. [Learn more →](/api-reference/sdk/models/data-models)

  * \[**Core**]: New `preload<Feature>()` methods (e.g. `preloadComment()`) to warm a feature chunk ahead of use, or to load tag-only features (`userInvite`, `userRequest`, `videoPlayer`). [Learn more →](/api-reference/sdk/api/api-methods)
</Update>