Xamarin.Forms 4.0 is here with an array of new features and capabilities to help you create amazing, multi-experience apps that perform efficiently and look great. Xamarin.Forms 4.0.0 also introduces Shell—a simplified, navigation-aware container that makes it easier to build mobile applications. The upgrade path to 4.0 and Shell is also designed to be as simple as possible. Finally, the latest release adds extended support for faster renderers and a unified image source feature to help you create better apps for your users. 

.NET 6 Release Candidate 1 (RC1) is now available and includes many great new improvements to ASP.NET Core. 

FluentValidation 9.0 is a major release that included several breaking changes. Please review this document before upgrading from FluentValidation 8.x to 9. 

This release brings continued improvements to the C# and .NET experiences, new Git performance and experiences, updates for C++ developers, and new Azure tools for local development and deployment. We also continue to address your direct feedback submitted via Developer Community, addressing over 400 feedback items in this release! You can see the broader list of community feedback addressed in releases by visiting the fixes page on Developer Community. 

.NET Core

• January 2020 Updates – 2.1.15, 3.0.2, and 3.1.1

• .NET Core 3.1.1 and .NET Core SDK 3.1.101( Release Notes | Download )

• .NET Core 3.0.2 and .NET Core SDK 3.0.102 ( Release Notes | Download )

• .NET Core 2.1.15 and .NET Core SDK 2.1.803 ( Release Notes | Download )

We’re excited to announce the release of .NET Core 3.0. It includes many improvements, including adding Windows Forms and WPF, adding new JSON APIs, support for ARM64 and improving performance across the board. C# 8 is also part of this release, which includes nullable, async streams, and more patterns. F# 4.7 is included, and focused on relaxing syntax and targeting .NET Standard 2.0. You can start updating existing projects to target .NET Core 3.0 today. The release is compatible with previous versions, making updating easy. 

The next stop for .NET 7 is General Availability, one month out, as Microsoft today shipped .NET 7 Release Candidate 2.  

Today, we are releasing the .NET April 2021 Updates. These updates contains reliability and other non-security improvements. See the individual release notes for details on updated packages.

You can download 5.0.5 versions for Windows, macOS, and Linux, for x86, x64, Arm32, and Arm64.

• Installers and binaries: 5.0.5
• Release notes: 5.0.5
• Container images
• Linux packages: 5.0.5
• Release feedback/issues
• Known issues: 5.0  

The desktop is here to stay. Sam Basu reviews how you can take advantage of the latest in .NET technologies and still build the apps your customers demand. 

Sam covers Windows Forms, XAML (UWP, WinUI), Progressive Web Apps, Electron, Blazor Mobile Bindings, .NET MAUI and building for Mac OS and Linux.  

The team said that “most of their effort to improve the .NET Core Docker experience in the last year has been focused on .NET Core 3.0.” “This is the first release in which we’ve made substantive runtime changes to make CoreCLR much more efficient, honor Docker resource limits better by default, and offer more configuration for you to tweak”.