.NET Blog

Free. Cross-platform. Open source. A developer platform for building all your apps.

An Introduction to DataFrame

Last month, we announced .NET support for Jupyter notebooks, and showed how to use them to work with .NET for Apache Spark and ML.NET. Today, we're announcing the preview of a DataFrame type for .NET to make data exploration easy. If you've used Python to manipulate data in notebooks, you'll already be familiar with the concept of a DataFrame...

ConfigureAwait FAQ

.NET added async/await to the languages and libraries over seven years ago. In that time, it's caught on like wildfire, not only across the .NET ecosystem, but also being replicated in a myriad of other languages and frameworks. It's also seen a ton of improvements in .NET, in terms of additional language constructs that utilize asynchrony, ...

An Introduction to System.Threading.Channels

"Producer/consumer" problems are everywhere, in all facets of our lives. A line cook at a fast food restaurant, slicing tomatoes that are handed off to another cook to assemble a burger, which is handed off to a register worker to fulfill your order, which you happily gobble down. Postal drivers delivering mail all along their routes, and you ...

.NET Framework December 2019 Security and Quality Rollup

Today, we are releasing the December 2019 Security and Quality Rollup Updates for .NET Framework. Security No new security fixes. See September 2019 Security and Quality Rollup for the latest security updates. Quality and Reliability This release contains the following quality and reliability improvements. ASP.NET CLR1 WPF2...

GC Perf Infrastructure – Part 1

We open sourced our new GC Perf Infrastructure! It’s now part of the dotnet performance repo. I’ve been meaning to write about it ‘cause some curious minds had been asking when they could use it after I blogged about it last time but didn’t get around to it till now. First of all, let me point out that the target audience of this ...

.NET Core 2.2 will reach End of Life on December 23, 2019

.NET Core 2.2 was released on December 4, 2018. As a non-LTS ("Current") release, it is supported for three months after the next release. .NET Core 3.0 was released on September 23, 2019. As a result, .NET Core 2.2 is supported until December 23, 2019. After that time, .NET Core patch updates will no longer include updated packages of ...

Updates to .NET Core Windows Forms designer in Visual Studio 16.5 Preview 1

We are happy to announce the new preview version of the .NET Core Windows Forms designer, which is available with the Visual Studio 16.5 Preview 1. The big news is that the designer is now part of Visual Studio! This means that installing the .NET Core Windows Forms designer from a separate VSIX is no longer needed! To use the designer...

Announcing Entity Framework Core 3.1 and Entity Framework 6.4

Announcing Entity Framework Core 3.1 and Entity Framework 6.4 We are excited to announce the general availability of EF Core 3.1 and EF 6.4 on nuget.org. The final versions of .NET Core 3.1 and ASP.NET Core 3.1 are also available now. How to get EF Core 3.1 EF Core 3.1 is distributed exclusively as a set of NuGet packages. For example, to ...