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Sep 14, 2020
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ASP.NET Core updates in .NET 5 Release Candidate 1

Daniel Roth

.NET 5 Release Candidate 1 is now available! Check out all the improvements in ASP.NET Core in this update.

Sep 13, 2020
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Announcing .NET 5.0 RC 1

Rich Lander [MSFT]

Today, we are shipping .NET 5.0 Release Candidate 1 (RC1). It is a near-final release of .NET 5.0, and the first of two RCs before the official release in November. RC1 is a "go live" release; you are supported using it in production. At this point, we're looking for reports of any remaining critical bugs that should be fixed before the final release. We need your feedback to get .NET 5.0 across the finish line. We also released RC1 versions of ASP.NET Core and EF Core today. You can download .NET 5.0, for Windows, macOS, and Linux: You need the latest preview version of Visual ...

Sep 8, 2020
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.NET Core September 2020 Updates – 2.1.22 and 3.1.8

Rahul Bhandari (MSFT)

Today, we are releasing the .NET Core September 2020 Update. These updates contain security and reliability fixes. See the individual release notes for details on updated packages. Security CVE-2020-1045: ASP.NET Core Security Feature Bypass Vulnerability Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET Core. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names. The A...

Sep 8, 2020
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.NET Framework September 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 September 2020 Security and Quality Rollup Updates for .NET Framework...

Sep 8, 2020
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Free e-book: Blazor for ASP.NET Web Forms Developers

Nish Anil

Announcing the release of our new e-book: Blazor for ASP.NET Web Forms developers. This book caters specifically to ASP.NET Web Forms developers looking for guidelines and strategies for migrating their existing apps to a modern, open-source, and cross-platform web framework.

Sep 3, 2020
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.NET Framework September 3, 2020 Cumulative Update Preview for Windows 10 2004 and Windows Server, version 2004

Tara Overfield

Today, we are releasing the September 3, 2020 Cumulative Update Preview Updates for .NET Framework. Quality and Reliability This release contains the following quality and reliability improvements. CLR1 - Addresses an issue with a crash on COM interop to properly return the hresult for the Out of Memory Exception - Addresses an issue in some 32 bit apps where, in certain scenarios, the JIT might omit a function call - Improved support for cleaning up private temporary certificate keys WPF2 - Improved spell checking so words like "etc." and "e.g." will no longer be identified as spelling errors when spell-...

Sep 2, 2020
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.NET CLI Templates in Visual Studio

Tim Heuer

If you are a template author for .NET Core templates and have been wanting to show up for Visual Studio users as well with little effort we have enabled a new preview feature for you! Visual Studio now has an option in preview to enable CLI-installed .NET Core templates to display as options in the New Project Dialog experience.

Sep 2, 2020
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Customizing Trimming in .NET 5

Sam Spencer

This second post on app trimming goes into more detail about to annotate code to control the trimming process.

Sep 2, 2020
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ARM64 Performance in .NET 5

Kunal Pathak

ARM64 performance work in .NET 5