The Uno Platform team has unveiled two significant updates: Uno Platform 6.4 and Uno Platform Studio 2.0, both released on November 11, 2025. These updates bring official support for .NET 10 and Visual Studio 2026, along with groundbreaking 'agentic' development features powered by AI. Uno Platform, an alternative UI platform for building multi-device applications in C# and XAML, was launched in 2018 after years of internal use by nventive, a Canadian company. It supports Windows, iOS, Android, WebAssembly, macOS, and Linux, and is open-source on GitHub under the Apache 2.0 license. Before this release, Uno Platform had previewed .NET 10 and VS 2026 readiness, but lacked full GA support. Uno Platform Studio 1.x focused on Hot Reload, Hot Design, and design-to-code workflows, but with 2.0, it enters the 'agentic development' realm where AI models collaborate with developers within the IDE and runtime context. Version 6.4 introduces numerous platform enhancements. Uno Platform now fully supports .NET 10 and the new .slnx solution format introduced in VS 2026, with an updated Visual Studio extension. A new status panel inside the IDE provides real-time information on restore progress, server health, and SDK workload validation, streamlining solution loads and builds. The Skia rendering engine has been optimized, moving some rendering cycles off the UI thread and optimizing image loading. UI shadows are now rendered using hardware acceleration when available. For Windows desktop apps, developers gain APIs to extend the UI into title bar areas, customize drag zones, and use custom-rendered window caption buttons (Minimize, Maximize, Close). Hybrid UI scenarios benefit from Z-order and airspace fixes in WebView2 hosting, improved support for loading local HTML/CSS/JS as assets across platforms, including WASM, and mapping virtual hostnames to a local app folder. Uno Platform Studio 2.0 introduces the Hot Design Agent, an AI assistant embedded in the visual designer workspace. It can read layout hierarchies, detect controls or bindings, and suggest UI updates, reorganize components, or apply styles within a running app, allowing developers to preview changes before committing. The Studio also includes two new MCP servers: Uno Platform MCP (documentation and API knowledge layer) and App MCP (runtime service exposing live state, UI tree, and control properties), enabling agents to interact with live apps. AI agents can now simulate input, inspect state, automate UI tests, or provide guidance. During the launch period, AI features are available without credit limits, allowing developers to explore agentic workflows. Recommended scenarios for agentic development in Uno Platform Studio include scaffolding apps from a prompt, creating a page from a screenshot, creating an app from Figma files, and modernizing older apps done in Xamarin, WPF, or Windows Forms. While .NET 10 is supported, developers should confirm the maturity of dependent libraries or plugins. Organizations migrating existing Uno Platform apps should follow the migration guide, updating global.json, IDE extensions, and validating Win32 windowing customisations.
