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Hydrogen 2026-10 is now available

The new Hydrogen is now GA: A framework-agnostic JavaScript library to add Shopify commerce to your existing stack, plus skills for coding agents and starters for React Router and Next.js.
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Changelog
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Surfaces & APIs

Versions

Change type

  1. October 2026

    Surface
    1. Detect when a POS extension screen finishes navigating
      POS Extensions
    2. Identify the published version running in a POS extension
      POS Extensions
    3. Cart mutations reject unconfirmed writes in POS UI extensions 2026-10
      Breaking changesPOS Extensions
    4. POS UI extensions now return percentage values for percentage discounts
      Breaking changesPOS Extensions

  2. September 2026

    Surface
    1. Request a bundle size exception for existing UI extensions
      Admin Extensions
    2. Removed session.currentSession.staffMemberId from POS UI Extensions (2026-10)
      Breaking changesPOS Extensions

  3. July 2026

    Surface
    1. POS UI extensions can now print directly to hardware receipt printers
      POS Extensions
    2. POS UI Extensions 2026-07 adds discount allocations to bundle components
      POS Extensions
    3. POS Extensions now supports a background extension target
      POS Extensions
    4. POS UI extensions 2026-07 uses per-unit fixed-amount line item discounts
      Breaking changesPOS Extensions

  4. April 2026

    Surface
    1. Minor rounding change for custom line item discounts in POS 11.5
      POS Extensions
    2. Automated testing for Shopify UI extensions with @shopify/ui-extensions-tester
      Admin Extensions
    3. New retail cash management capabilities
      Admin GraphQL API
    4. Removing outdated Polaris reference docs
      Admin Extensions

  5. March 2026

    Surface
    1. POS UI extensions can now run without network access
      POS Extensions

  6. February 2026

    Surface
    1. shopify.app.extensions() in App Bridge now supports POS UI extensions
      App Bridge

  7. January 2026

    Surface
    1. Ensuring POS UI extension stability by hardening callback handling
      Breaking changesPOS Extensions
    2. Localization support for POS UI extensions
      POS Extensions
    3. POS UI extensions can now use the device camera
      POS Extensions

  8. December 2025

    Surface
    1. Revamped POS UI extensions reference
      POS Extensions

  9. October 2025

    Surface
    1. POS UI extensions: Developer experience Improvements
      POS Extensions
    2. Subscription Selling Plan support with POS UI Extensions
      POS Extensions

  10. July 2025

    Surface
    1. POS UI Extensions 2025-07 update
      Breaking changesPOS Extensions

  11. April 2025

    Surface
    1. POS UI Extensions - Cart API: Customer fields removed from subscribable hook
      Breaking changesPOS Extensions

  12. March 2025

    Surface
    1. POS UI Extensions 2025-04 Update
      POS Extensions
    2. End of Compatibility for Old POS UI Extensions Versions
      Action requiredPOS Extensions
    3. POS UI Extensions: Modal update
      POS Extensions

  13. January 2025

    Surface
    1. POS UI Extensions 2025-01 Update
      POS Extensions

  14. December 2024

    Surface
    1. Print API will be available for POS Extensions
      POS Extensions

  15. November 2024

    Surface
    1. POS Legacy Extensions Will Be Deprecated in February 2025
      Action requiredPOS Extensions