# Theme Migration (Twig -> Vitrin) :::danger[] Themes built on the **Twig templating engine** are now **deprecated** and require migration to **Vitrin** to ensure continued support and compatibility with the Zid platform. ::: --- > This guide will help you migrate your existing **Twig** themes into the new **Vitrin** system, step by step—from syntax changes in Jinja to the architectural improvements offered by Vitrin. > ## Migration Timeline - **Migration window:** Developers can begin migrating their themes starting **01/08/2025**. - **Support cut-off:** All Twig themes will be deprecated by **28/12/2025**, and only Vitrin themes will remain supported in the Theme Market. --- ## Why Migrate? The new **Vitrin theming system** introduces major benefits over Twig-based themes: - **Improved performance** → faster rendering, optimized asset loading, and better caching. - **Cleaner syntax with Jinja** → widely adopted, with clearer standards and more powerful features. - **Future-proof features** → support for new storefront APIs, versioned macros, and configurable schema settings. - **Consistent merchant experience** → default fallbacks, standardized settings, and cross-theme compatibility. :::check[] Migrating ensures that your themes remain **usable, maintainable, and attractive** to Zid merchants. ::: --- ## Prerequisites **Before you begin migration, make sure you have:** - Access to your existing Twig theme source code. - A [partner account](https://partner.zid.sa) in Zid Partner Dashboard (for testing & uploading themes). --- Start by reviewing [Store Settings Mapping](https://docs.zid.sa/store-settings-mapping-1379317m0) to understand how old settings translate into the new schema, then move on to [Moving to Vitrin Using LLMs](https://docs.zid.sa/moving-to-vitrin-using-llms-1379318m0) for practical migration tools.