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Announcing .NET 10 Release Candidate 1
Sep 9, 2025
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Announcing .NET 10 Release Candidate 1

.NET Team
.NET Team

.NET 10 Release Candidate 1 is available with improvements across the runtime, SDK, libraries, ASP.NET Core, Blazor, .NET MAUI, and more!

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Latest posts

64 bit ASP.NET Core on Azure App Service
Jan 9, 2018
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64 bit ASP.NET Core on Azure App Service

Glenn Condron [MSFT]
Glenn Condron [MSFT]

When creating an Azure App Service .NET Core is already pre-installed. However, only the 32 bit .NET runtime is installed. In this post we will look at a  few ways that you can get a 64 bit runtime on Azure App Service During the 2.1 timeframe we are hoping to have both 32 and 64 bit runtimes installed as well as enabling the portal experience to switch between the two. 1. Deploy a self-contained application Self-contained deployments don't require .NET Core to be installed on a machine, because they carry the runtime they need with them. Because of this you can deploy a 64bit self-contained deployment to...

.NET Framework 4.7.1 is available on Windows Update, WSUS and MU Catalog!
Jan 9, 2018
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.NET Framework 4.7.1 is available on Windows Update, WSUS and MU Catalog!

Preeti Krishna - MSFT
Preeti Krishna - MSFT

Today, we are happy to announce the Microsoft .NET Framework 4.7.1 is available on Windows Update, Windows Server Update Services (WSUS) and Microsoft Update (MU) Catalog. This includes reliability fixes based on your early feedback on the release. .NET Framework 4.7.1 is available for the following client and server platforms: These reliability fixes are also available on Download Center as a standalone update (KB4054856).  If you  installed .NET Framework 4.7.1 via Download Center, please install KB4054856. This update applies on the client and server platforms mentioned above. .NET Framework 4.7.1 is ...

.NET Core January 2018 Update
Jan 9, 2018
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.NET Core January 2018 Update

Rich Lander [MSFT]
Rich Lander [MSFT]

Today, we are releasing the .NET Core January 2018 Update. This includes .NET Core  1.0.9, 1.1.6 and 2.0.5. Please leave feedback on the release in the comments below or at dotnet/core #1199. Security CVE-2018-0786 - Security Feature Bypass in X509 Certificate Validation Microsoft is aware of a security vulnerability in the public versions of .NET Core where an attacker could present a certificate that is marked invalid for a specific use, but a component uses it for that purpose. This action disregards the Enhanced Key Usage tagging. The security update addresses the vulnerability by ensuring that .NET Core co...

Announcing Preview 1 of ASP.NET MVC 5.2.4, Web API 5.2.4, and Web Pages 3.2.4
Jan 5, 2018
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Announcing Preview 1 of ASP.NET MVC 5.2.4, Web API 5.2.4, and Web Pages 3.2.4

Daniel Roth
Daniel Roth

Today we are releasing Preview 1 of ASP.NET MVC 5.2.4, Web API 5.2.4, and Web Pages 3.2.4 on NuGet. This release contains some minor bug fixes and a couple of new features specifically targeted at enabling .NET Standard support for the ASP.NET Web API Client. You can find the full list of features and bug fixes for this release in the release notes. To update an existing project to use this preview release run the following commands from the NuGet Package Manager Console for each of the packages you wish to update: ASP.NET Web API Client support for .NET Standard The ASP.NET Web API Client package provides ...

Take a Break with Azure Functions
Dec 21, 2017
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Take a Break with Azure Functions

Justin Clareburt (MSFT)
Justin Clareburt (MSFT)

So, it's the Holidays. The office is empty, the boss is away, and you've got a bit of free time on your hands. How about learning a new skill and having some fun? Azure Functions are a serverless technology that executes code based on various triggers (i.e. a URL is called, an item is placed on a queue, a file is added to blob storage, a timer goes off.) There's all sorts of things you can do with Azure Functions, like running high CPU-bound calculations, calling various web services and reporting results, sending messages to groups - and nearly anything you can imagine. But unlike traditional applications and s...

Testing ASP.NET Core MVC web apps in-memory
Dec 7, 2017
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Testing ASP.NET Core MVC web apps in-memory

Daniel Roth
Daniel Roth

This post was written and submitted by Javier Calvarro Nelson, a developer on the ASP.NET Core MVC team Testing is an important part of the development process of any application. In this blog post we are going to explore how we can test ASP.NET Core MVC applications using an in-memory server. This approach has several advantages: The main shortcoming of this approach is that is not well suited to test applications that heavily rely on JavaScript. That said, if you are writing a traditional web application or an API then all the benefits mentioned above apply. For testing MVC applications we are going t...

Migrating your existing .NET application to the cloud? Tell us about it!
Dec 5, 2017
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Migrating your existing .NET application to the cloud? Tell us about it!

.NET Team
.NET Team

Hi everyone! The .NET team is conducting a survey to learn more about your approach for moving existing .NET applications to the cloud.  The survey should take less than 5 minutes to complete. Take the Survey now! The survey will also allow you to provide your contact details which will allow a .NET team member to reach out to you  and help you explore the various cloud migration options available for your application. We have already worked with a few customers and would like to extend this to all our customers!  

Configuring HTTPS in ASP.NET Core across different platforms
Nov 29, 2017
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Configuring HTTPS in ASP.NET Core across different platforms

Daniel Roth
Daniel Roth

As the web moves to be more secure by default it's more important than ever to make sure your websites have HTTPS enabled. And if you're going to use HTTPS in production its a good idea to develop with HTTPS enabled so that your development environment is as close to your production environment as possible. In this blog post we're going to go through how to setup an ASP.NET Core app with HTTPS for local development on Windows, Mac, and Linux. This post is primarily focused on enabling HTTPS in ASP.NET Core during development using Kestrel. When using Visual Studio you can alternatively enable HTTPS in the Debug ...

Improve website performance by optimizing images
Nov 28, 2017
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Improve website performance by optimizing images

Mads Kristensen
Mads Kristensen

We all want our web applications to load as fast as possible to give the best possible experience to the users. One of the steps to achieve that is to make sure the images we use are as optimized as possible. If we can reduce the file size of the images then we can significantly reduce the weight of the website. This is important for various reasons, including: To optimize images is always better for the user and therefore for you too, but it’s something that is easy to forget to do and a bit cumbersome. So, let’s look at a couple of options that are simple to use. All these options use ...