.NET Blog

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

How to port desktop applications to .NET Core 3.0

In this post, I will describe how to port a desktop application from .NET Framework to .NET Core. I picked a WinForms application as an example. Steps for WPF application are similar and I'll describe what needs to be done different for WPF as we go. I will also show how you can keep using the WinForms designer in Visual Studio even though it ...

Announcing .NET Framework 4.8 Early Access Build 3745

As we get closer to the final version, our efforts are focused on stabilizing the release over the coming weeks. Please keep up the support by trying out our latest preview 3745 and provide any feedback you may have for the build or for .NET 4.8 overall, via the .NET Framework Early Access GitHub repository. Supported Windows Client ...

.NET Framework February 2019 Preview of Quality Rollup

Today, we released the February 2019 Preview of Quality Rollup. Quality and Reliability This release contains the following quality and reliability improvements. CLR Addresses an issue in System.Threading.Timer where a single global queue that was protected by a single process-wide lock causing an issue with scalability

Announcing .NET Framework 4.8 Early Access Build 3734

We are getting closer to the final version now! This release includes several accessibility, performance and reliability fixes across the major framework libraries. We will continue to stabilize this release and take more fixes over the coming weeks and we would greatly appreciate it if you could help us ensure Build 3734 is a high-quality ...

Help us plan the future of .NET and Big Data

We’re currently looking into how we can make .NET great for Big Data scenarios.    Please fill out the survey below and help shape how we can improve .NET for Big Data by sharing your experiences, challenges, and needs. It should only take 10 minutes or less to complete!  Take the survey now!  (image) (image) Thanks...

Debugging .NET Apps with Time Travel Debugging (TTD)

When you are debugging an application, there are many tools and techniques you can use, like logs, memory dumps and Event Tracing for Windows (ETW). In this post, we will talk about Time Travel Debugging, a tool used by Microsoft Support and product teams and more advanced users, but I encourage everyone to try this approach when diagnosing ...

Do more with patterns in C# 8.0

Do more with patterns in C# 8.0 Visual Studio 2019 Preview 2 is out! And with it, a couple more C# 8.0 features are ready for you to try. It's mostly about pattern matching, though I'll touch on a few other news and changes at the end. More patterns in more places When C# 7.0 introduced pattern matching we said that we expected to add more ...

.NET Framework January 22, 2018 Cumulative Update for Windows 10 version 1809 and Windows Server 2019

Today, we are releasing the January 22, 2018 .NET Framework Cumulative Update for Windows 10 version 1809 and Windows Server 2019. For more information about the new Cumulative Updates for .NET Framework for Windows 10 version 1809 and Windows Server 2019 please refer to this recent announcement. Update Notice (1/23/2019): The term "...

.NET Framework January 2019 Security and Quality Rollup

Today, we are releasing the January 2019 Security and Quality Rollup. Security CVE-2019-0545 – Windows Security Feature Bypass Vulnerability This security update resolves a vulnerability in Microsoft .NET Framework that may cause an information disclosure that allows bypassing Cross-origin Resource Sharing (CORS) configurations. An ...