---
title: POS UI Extensions 2025-04 Update - Shopify developer changelog
description: >-
  Shopify’s developer changelog documents all changes to Shopify’s platform.
  Find the latest news and learn about new platform opportunities.
source_url:
  html: 'https://shopify.dev/changelog/posts/pos-ui-extensions-2025-04-update'
  md: 'https://shopify.dev/changelog/posts/pos-ui-extensions-2025-04-update.md'
metadata:
  effectiveApiVersion: 2025-04
  affectedApi:
    - displayName: POS Extensions
      handle: pos-extensions
  primaryTag:
    displayName: API
    handle: api
  secondaryTag:
    displayName: Update
    handle: update
  indicatesActionRequired: false
  createdAt: '2025-03-13T10:48:16-04:00'
  postedAt: '2025-03-28T12:00:00-04:00'
  updatedAt: '2026-08-24T09:45:00-04:00'
  effectiveAt: '2025-04-01T12:00:00-04:00'
---

March 28, 2025

# POS UI Extensions 2025-04 Update

DateMarch 28, 2025

Version[2025-04](https://shopify.dev/changelog?api_version=2025-04)

FlagsUpdate

SurfacesAPI

Affected APIs[POS Extensions](https://shopify.dev/changelog?api_type=pos-extensions)

As of April 1, 2025, we made the following updates to POS UI Extensions:

### Features

**Developer Preview**

* Added support for the [`pos.transaction-complete.event.observe`](https://shopify.dev/docs/api/pos-ui-extensions/targets/post-purchase/pos-transaction-complete-event-observe) target.
* Added support for the [`pos.cart-update.event.observe`](https://shopify.dev/docs/api/pos-ui-extensions/unstable/targets/cart-details/pos-cart-update-event-observe) target.
* Added support for [`pos.cash-tracking-session-start.event.observe`](https://shopify.dev/docs/api/pos-ui-extensions/targets/cash-tracking/pos-cash-tracking-session-start-event-observe) and [`pos.cash-tracking-session-complete.event.observe`](https://shopify.dev/docs/api/pos-ui-extensions/targets/cash-tracking/pos-cash-tracking-session-complete-event-observe) targets.
* Introduced a [`QRCode`](https://shopify.dev/docs/api/pos-ui-extensions/unstable/components/qrcode) component.

All of the changes are available for POS UI extensions version 2025-04 and POS app version 9.31.0. For all version details, refer to the [version log](https://shopify.dev/docs/api/pos-ui-extensions/unstable/versions).