.NET MAUI 10 is the fifth major release of .NET MAUI, a cross-platform framework for building mobile and desktop apps.
It’s slated for a GA release during the .NET Conf, an annual virtual developer event, scheduled from Nov 11-13, 2025.
It’s packed with many quality of life improvements. The Global and Implicit Namespace for XAML feature is the pick of the lot.
To learn about the key features of .NET MAUI 10, check out this Overview article.
Yesterday marked the official release of the highly anticipated .NET MAUI Toolkit (CommunityToolkit.Maui) package v10.0, introducing native support for .NET 9.
Though it is the extended arm of .NET MAUI app development, for newcomers, this officially supported toolkit offers a comprehensive collection of essential components—such as Alerts, Behaviors, Converters, Extensions, Layouts, and Views—that are crucial for developing real-world apps.
This new release has some breaking changes, with the most notable being aligning with the design change introduced in .NET MAUI 9, where Behaviors no longer automatically inherit the BindingContext of their parent (a major shift from the original Xamarin.Forms design).
After the installation of .NET MAUI 9 Preview 5, an XAML compilation (XAMLC) issue has arisen.
In general, it is not necessary to explicitly specify the default property such as Content, Children, etc.
The Content is the default property for Page, View, and Toolkit’s Popup, and this XAMLC issue is about the Content property.