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