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May 19, 2020
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Announcing Entity Framework Core 5.0 Preview 4

Jeremy Likness

Announcing the release of Entity Framework Core 5.0 Preview 4 with bug fixes and new features like setting database column precision and configuring SQL Server index fill factor.

May 19, 2020
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ML.NET Model Builder is now a part of Visual Studio

Bri Achtman

ML.NET is a cross-platform, machine learning framework for .NET developers. Model Builder is the UI tooling in Visual Studio that uses Automated Machine Learning (AutoML) to train and consume custom ML.NET models in your .NET apps. You can use ML.NET and Model Builder to create custom machine learning models without having prior machine learning experience and without leaving the .NET ecosystem. Model Builder in Visual Studio Previously, Model Builder was a Visual Studio extension that had to be installed from the VS Marketplace. Now, Model Builder ships with Visual Studio 16.6 as a preview feature! After enabl...

May 19, 2020
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Windows Forms Designer for .NET Core Released

Olia Gavrysh

Today we're happy to announce that the Windows Forms designer for .NET Core projects is now available as a preview in Visual Studio 2019 version 16.6! We also have a newer version of the designer available in Visual Studio 16.7 Preview 1! Don't forget to enable the designer in Tools > Options > Environment > Preview Features. Many of you may remember that we open-sourced Windows Forms and ported it to .NET Core with .NET Core 3.0. Since then, we've been hard at work bringing the Windows Forms designer experience to .NET Core. While we are getting closer to completion, we are continuing work on ...

May 19, 2020
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Blazor WebAssembly 3.2.0 now available

Daniel Roth

Blazor WebAssembly is now officially released! This is a fully-featured and supported release of Blazor WebAssembly that is ready for production use. Full stack web development with .NET is now here!

May 19, 2020
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ASP.NET Core updates in .NET 5 Preview 4

Sourabh Shirhatti [MSFT]

.NET 5 Preview 4 is now available and is ready for evaluation! .NET 5 will be a current release. Get started To get started with ASP.NET Core in .NET 5.0 Preview4 install the .NET 5.0 SDK. If you're on Windows using Visual Studio, we recommend installing the latest preview of Visual Studio 2019 16.6. If you're on macOS, we recommend installing the latest preview of Visual Studio 2019 for Mac 8.6. Upgrade an existing project To upgrade an existing ASP.NET Core 5.0 preview3 app to ASP.NET Core 5.0 preview4: See the full list of breaking changes in ASP.NET Core 5.0. That’s it! You should now be all set ...

May 19, 2020
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Introducing .NET Multi-platform App UI

Scott Hunter [MSFT]

You can build anything with .NET. It's one of the main reasons millions of developers choose .NET as the platform for their careers, and companies invest for their businesses. With .NET 5 we begin our journey of unifying the .NET platform, bringing .NET Core and Mono/Xamarin together in one base class library (BCL) and toolchain (SDK). As we consider what building device applications will look like in a unified .NET, we see many devices across multiple platforms used, from Android and iOS to Windows and macOS. To address this need we are excited to announce a new first-class UI framework for doing just that: ....

May 19, 2020
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Announcing .NET 5 Preview 4 and our journey to one .NET

Scott Hunter [MSFT]

.NET 5 is the next version and future of .NET. We are continuing the journey of unifying the .NET platform, with a single framework that extends from cloud to desktop to mobile and beyond. Looking back, we took the best of .NET Framework and put that into .NET Core 3, including support for WPF and Windows Forms. As we continue the journey, we will move Xamarin and .NET web assembly to use the .NET 5 libraries, and extend the dotnet tools to target mobile and web assembly in the browser. At the same time, we'll continue to improve .NET capabilities as a leading cloud and container runtime. You can tune in to he...

May 12, 2020
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.NET Core May 2020 Updates – 2.1.18 and 3.1.4

Rahul Bhandari (MSFT)

Today, we are releasing the .NET Core May 2020 Update. These updates contain security and reliability fixes. See the individual release notes for details on updated packages. NOTE: If you are a Visual Studio user, there are MSBuild version requirements so use only the .NET Core SDK supported for each Visual Studio version. Information needed to make this choice will be seen on the download page. If you use other development environments, we recommend using the latest SDK release. Getting the Update The latest .NET Core updates are available on the .NET Core download page. This update will be incl...

May 12, 2020
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.NET Framework May 2020 Security and Quality Rollup Updates

Tara Overfield

Revised 6/8/2021: On June 8th, 2021, this update was released to replace a previous update to address a “revocation server was offline” error that may occur during installation. If you've already installed a previous release of this update, no action is required. Revised 4/15/2021: On April 13th, 2021, this update was released to replace a previous release of this some updates. See known issues section for more details. If you've already installed a previous release of an affected update, no action is required. Today, we are releasing the May 2020 Security and Quality Rollup Updates for .NET Framework. Sec...