Cross-platform with .NET: Uno Platform 6.1 comes with a new control element
The open source and commercial versions of Uno Platform for cross-platform development of .NET applications have reached version 6.1.
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Uno Platform has released version 6.1 of its eponymous development platform, which is used to create cross-platform .NET applications using C# and XAML. Updates in the open source Uno Platform variant include a new UI control CommandBarFlyout, while customers of the Uno Platform Studio service receive new features for Hot Design.
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Improved classes in .NET 10.0, Native AOT with Entity Framework Core 10.0 and more: .NET developers will get an overview at the online conference betterCode() .NET 10.0 on November 18, 2025, followed by six full-day workshops on topics such as C# 14.0, AI deployment and web APIs.
CommandBarFlyout for more modern app control
The new CommandBarFlyout control element in Uno Platform 6.1 is a floating, contextual toolbar. This is intended to enable modern app control that displays both primary and secondary commands. The area with the secondary commands can optionally be collapsed to keep the UI clearer.
(Image:Â Uno Platform)
CommandBarFlyout can work with the standard UICommand API, so localized commands such as copy, cut or paste can be used with little effort.
Other updates in Uno Platform include status bar APIs for directly customizing background and foreground colors on iOS and Android, as well as added cookie handling for WebAssembly. Changes under the hood should also make scrolling and gestures smoother and more responsive for users.
Editor update for Hot Design
The visual designer called Hot Design is included in Uno Platform Studio. This allows developers to edit user interfaces in real time and immediately recognize the effects of XAML changes.
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Hot Design brings new updates for the user experience in this release. For example, a new Thickness Editor is available, which can be used to adjust margin, padding, border and thickness, among other things. For Margin (the space outside an element) and Padding (the internal space between the border of a control element and internal content), an illustration including arrows is provided to illustrate this:
(Image:Â Uno Platform)
Further information on the two new 6.1 releases can be found on the Uno Platform blog. The open source version can be obtained in the form of NuGet packages, while Uno Platform Studio is available from the manufacturer – optionally in a free community edition, which, in contrast to the Pro version, only offers Hot Design as a 30-day preview.
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