---
title: Localization support for POS UI extensions - 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/localization-support-for-pos-ui-extensions'
  md: 'https://shopify.dev/changelog/localization-support-for-pos-ui-extensions.md'
metadata:
  effectiveApiVersion: 2026-01
  affectedApi:
    - displayName: POS Extensions
      handle: pos-extensions
  primaryTag:
    displayName: API
    handle: api
  secondaryTag:
    displayName: New
    handle: new
  indicatesActionRequired: false
  createdAt: '2026-01-19T14:43:20-05:00'
  postedAt: '2026-01-23T17:00:00-05:00'
  updatedAt: '2026-01-23T16:15:01-05:00'
  effectiveAt: '2026-01-01T12:00:00-05:00'
---

January 23, 2026

Tags:

* POS Extensions
* 2026-01

# Localization support for POS UI extensions

Starting in POS 10.19, you can now localize your POS UI extensions for international merchants, staff, and customers. You can

* **Translate extension text**: Define locale files with translation strings that automatically resolve based on customer and shop locales.
* **Format currencies and numbers**: Use `formatCurrency` and `formatNumber` to display values in locale-appropriate formats.
* **Handle pluralization**: Support complex plural rules across languages using the standard `Intl.PluralRules` specification.

Learn how to [localize a POS UI extension](https://shopify.dev/docs/apps/build/pos/localization).