# Version 4.2.89 > Change logs general updates and new features (Change logs) - Page: https://dashboard.nizu.io/knowledge_base/view/400-version-4-2-89 - Part of: [Knowledge base](https://dashboard.nizu.io/knowledge_base/llms.txt) on NIZU — https://dashboard.nizu.io/llms.txt - Updated: 2026-10-25T11:50:03Z Change Log --- | ## 4.2.89 | #### 09-10-2026 | | --- | --- | **New** - AI App Design large Apps are now built in the background, step by step: the designer first writes a concept and a plan, then designs the records, screens, reports, automatic steps and menu one part at a time, checks everything and tests it with sample data. Keep working in the meantime; you get a notification when the first version is ready. - AI App Design while an App is being built, its line in the list shows the step it is on; open it to follow the progress. Once it is ready, the Prompt tab shows how it was built: the concept, the plan and the test results. **Updates** - AI App Design Apps can now have up to 30 kinds of records and 150 screens. A big change to an existing App is built in the background the same way. **Fix** - AI App Design describing a large App (for example a warehouse with transport management) no longer leaves an empty "Untitled App" behind. **Deprecated** -