# Hydrogen July 2024 release — Shopify developer changelog
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## Hydrogen July 2024 release

[Hydrogen v2024.7.1](https://github.com/Shopify/hydrogen/releases/tag/%40shopify%2Fhydrogen%402024.7.1)  is out today. The July 2024 Hydrogen release contains several new features and bug fixes, including:

- A new `useOptimisticVariant` hook
- `sellingPlanId` support for `<BuyNowButton />`
- New customer account session commit pattern (breaking)
- `<VariantSelector />` improved handling of options (breaking)
- Update Remix to 2.10.0 which included fixes to infinite loading error
- Type fixes for optimistic cart
- CLI: Vite bundle analyzer
- CLI: Support CSS options in Vite projects

Check out our full [Hydrogen July 2024 release blog post](https://hydrogen.shopify.dev/update/july-2024) for more details. And please drop your comments, feedback, and suggestions in [GitHub Discussions](https://github.com/Shopify/hydrogen/discussions)!

*Published: July 11, 2024*
Tags: Platform, Update
Link: https://shopify.dev/changelog/hydrogen-july-2024-release

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