.NET Framework Archives

.NET Framework February 2020 Preview of Quality Rollup

Tara OverfieldFebruary 25, 2020Feb 25, 202002/25/20

Today, we are releasing the February 2020 Preview of Quality Rollup Updates for .NET Framework.
Quality and Reliability
This release contains the following quality and reliability improvements.
CLR1

Addresses an issue with rare crashes or deadlocks that could occur if a GC occurs while another thread is running NGen’ed code which makes the initial call into a static method within the same module where one or more parameter types involve type-forwarded value types.

.NET Framework February 2020 Security and Quality Rollup

Tara OverfieldFebruary 11, 2020Feb 11, 202002/11/20

Today, we are releasing the February 2020 Security and Quality Rollup Updates for .NET Framework.
Security
The February Security and Quality Rollup Update does not contain any new security fixes. See January 2020 Security and Quality Rollup for the latest security updates.

.NET Framework January Preview of Quality Rollup

Tara OverfieldJanuary 23, 2020Jan 23, 202001/23/20

Today, we are releasing the January 2020 Preview of Quality Rollup Updates for .NET Framework.
Quality and Reliability
This release contains the following quality and reliability improvements.
Acquistion & Deployment

Addresses an issue where the installation of .NET 4.8 on Windows machines prior to 1809 build prevents .NET-specific settings to be migrated during Windows upgrade to build 1809.

We made Windows Server Core container images >40% smaller

Rich Lander [MSFT]December 9, 2019Dec 9, 201912/9/19

Over the past year, we’ve been working with the Windows Server team to make Windows Server Core container images a lot smaller. They are now 40% smaller! The Windows Server team has already published the new images in the Server Core Insider Docker repo,

GC Perf Infrastructure – Part 1

maoniDecember 9, 2019Dec 9, 201912/9/19

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.

Announcing ML.NET 1.4 general availability (Machine Learning for .NET)

Cesar De la TorreNovember 6, 2019Nov 6, 201911/6/19

Coinciding with the Microsoft Ignite 2019 conference, we are thrilled to announce the GA release of ML.NET 1.4 and updates to Model Builder in Visual Studio, with exciting new machine learning features that will allow you to innovate your .NET applications.

.NET Framework October 2019 Security and Quality Rollup

Brett LopezOctober 8, 2019Oct 8, 201910/8/19

Today, we are releasing the October 2019 Security and Quality Rollup and Cumulative 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.

.NET Framework September 2019 Security and Quality Rollup

Brett LopezSeptember 10, 2019Sep 10, 201909/10/19

Today, we are releasing the September 2019 Cumulative Update, Security and Quality Rollup, and Security Only Update for .NET Framework.
Security
CVE-2019-1142– .NET Framework Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists when the .NET Framework common language runtime (CLR) allows file creation in arbitrary locations.

.NET Framework August 30, 2019 Cumulative Update for Windows 10 version 1903

Brett LopezAugust 30, 2019Aug 30, 201908/30/19

The August 2019 Cumulative Update for .NET Framework 3.5 and 4.8 on Windows 10 version 1903 was released.
Quality and Reliability
This release contains the following quality and reliability improvements.

Addresses a crash that occurs after enumerating event logs.
Addresses a regression caused by the fix for the issue involving bindings with DataContext explicitly on the binding path.

.NET Framework August 2019 Preview of Quality Rollup

Brett LopezAugust 20, 2019Aug 20, 201908/20/19

Today, we are releasing the August 2019 Preview of Quality Rollup.
Quality and Reliability
This release contains the following quality and reliability improvements.
BCL1

Addresses a crash that occurs after enumerating event logs. [910822]

1 Base Class Library (BCL)

Getting the Update
The Preview of Quality Rollup is available via Windows Update,

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