Hydrogen 2026.4 Ships Three Breaking Changes: The Mandatory Storefront API Proxy, Backend Consent Mode, and the End of @shopify/remix-oxygen

Shopify shipped Hydrogen 2026.4.0 on April 17, 2026. Most of the release notes celebrate React Router 7.9.2 middleware support, Miniflare v3, and ten new Cookbook recipes. Fine — but buried in PRs #3649 and #3621 are three breaking changes that will ...