OpenSilver 3.1 has been launched, bringing new options to the open supply framework for constructing internet apps utilizing .NET. These embrace a drag-and-drop XAML designer for VS code, a extra fashionable UI theme, expanded help for Home windows Presentation Basis (WPF) options, and full compatibility with .NET 9.
The brand new drag-and-drop XAML designer in VS Code contains over 100 ready-to-use controls, resembling knowledge grids and charts, and a built-in AI assistant for producing UI layouts.
It additionally works seamlessly throughout Home windows, macOS, and Linux, making this a significant milestone for cross-platform improvement, as beforehand XAML UI design was restricted to Visible Studio on Home windows.
Its new UI theme is extra fashionable and takes inspiration from Materials and Fluent Design ideas. It contains mild and darkish modes and the flexibility to simply regulate shade palettes. Moreover, the splash display screen that signifies that an software is loading additionally now has a extra fashionable look.
Builders engaged on legacy purposes will nonetheless be capable to entry authentic Silverlight themes, the crew famous.
Help for a number of WPF options was added, together with DynamicResource, MultiBinding, x:Static, and UniformGrid. The 2025 roadmap contains including extra WPF options, resembling triggers and types.
Different options on the OpenSilver roadmap embrace MAUI Hybrid integration, Blazor interoperability, and 3D UI help.
“We’re dedicated to supporting the .NET ecosystem by providing instruments that assist builders construct fashionable internet apps and modernize legacy ones effectively,” stated Giovanni Albani, CEO of Userware, the corporate behind OpenSilver. “OpenSilver bridges legacy and greenfield improvement, equipping companies with a forward-looking framework.”
