---
title: 'Storybook 5.1 - June 2019'
---

## [Storybook 5.1](https://medium.com/storybookjs/storybook-5-1-50afd02b5bbb) is a juicy upgrade including:

- [📱 Mobile: Standalone package architecture for React Native](https://medium.com/storybookjs/whats-new-in-storybook-4-0-react-native-741c7f481bbb)
- [🎟 A11y addon: Realtime accessibility checks and visual feedback](https://medium.com/storybookjs/instant-accessibility-qa-linting-in-storybook-4a474b0f5347)
- 🛠 Context addon: New UI for themes, internationalization, & more
- 🎛 Presets: One-line configuration for babel, webpack, & addons

---

5.1 contains hundreds more fixes, features, and tweaks. Browse the <a href="https://github.com/storybookjs/storybook/blob/next/CHANGELOG.md">changelogs</a> matching `5.1.0-alpha.*`, `5.1.0-beta.*`, and `5.1.0-rc.*` for the full list of changes. See <a href="https://github.com/storybookjs/storybook/blob/next/MIGRATION.md">MIGRATION.md</a> to upgrade from 5.0 or earlier.
