March 2019 | .NET Blog

Announcing F# 4.6

Phillip CarterMarch 29, 2019Mar 29, 201903/29/19

We're excited to announce general availability of F# 4.6 and the F# tools for Visual Studio 2019! In this post, I'll show you how to get started, explain the F# 4.6 feature set, give you an update on the F# tools for Visual Studio, and talk about what we're doing next. F# 4.6 was developed entirely via an open RFC (requests for comments) pr

Migrating Delegate.BeginInvoke Calls for .NET Core

Mike Rousos - MSFTMarch 28, 2019Mar 28, 201903/28/19

I recently worked with a couple customers migrating applications to .NET Core that had to make code changes to workaround BeginInvoke and EndInvoke methods on delegates not being supported on .NET Core. In this post, we'll look at why these APIs aren't implemented for .NET Core, why their usage isn't caught by the .NET API Portability Analyzer

.NET Framework March 2019 Update

Tara OverfieldMarch 19, 2019Mar 19, 201903/19/19

Today, we released the March 2019 Update. Quality and Reliability This release contains the following quality and reliability improvements. CLR Getting the Update The Update is available via Windows Server Update Services and Microsoft Update Catalog. Microsoft Update Catalog You can get the update via the Microsoft Upda

.NET Core Container Images now Published to Microsoft Container Registry

Rich Lander [MSFT]March 15, 2019Mar 15, 201903/15/19

We are now publishing .NET Core container images to Microsoft Container Registry (MCR). We have also made other changes to the images we publish, described in this post. Important: You will need to change FROM statements in Dockerfile files and docker pull commands as a result of these changes. 3.0 references need to be changed now. Most 1.

.NET Core March 2019 Updates – 1.0.15, 1.1.12, 2.1.9 and 2.2.3

Lee CowardMarch 12, 2019Mar 12, 201903/12/19

Today, we are releasing the .NET Core March 2019 Update. These updates contain security and reliability fixes. See the individual release notes for details on included reliability fixes. Security Microsoft Security Advisory CVE-2019-0757: .NET Core NuGet Tampering Vulnerability A tampering vulnerability exists in NuGet s

Announcing ML.NET 0.11 – Machine Learning for .NET

Bri AchtmanMarch 8, 2019Mar 8, 201903/8/19

ML.NET is an open-source and cross-platform machine learning framework (Windows, Linux, macOS) for .NET developers. Using ML.NET, developers can leverage their existing tools and skillsets to develop and infuse custom AI into their applications by creating custom machine learning models for common scenarios like Sentiment Analysis, Recommendat

Announcing .NET Core 3 Preview 3

Rich Lander [MSFT]March 6, 2019Mar 6, 201903/6/19

Today, we are announcing .NET Core 3.0 Preview 3. We would like to update you on the .NET Core 3.0 schedule and introduce you to improvements in .NET Core SDK installers, Docker containers, Range, and Index. We also have updates on the Windows Desktop and Entity Framework projects. Download and get started with .NET Core 3 Preview 3 right n

Floating-Point Parsing and Formatting improvements in .NET Core 3.0

Tanner Gooding [MSFT]March 5, 2019Mar 5, 201903/5/19

Starting back with the .NET Core 2.1 release, we were making iterative improvements to the floating-point parsing and formatting code in .NET Core. Now, in .NET Core 3.0 Preview 3, we are nearing completion of this work and would like to share more details about these changes and some of the differences you might see in your applications. The

Collecting .NET Core Linux Container CPU Traces from a Sidecar Container

Jeremy MengMarch 5, 2019Mar 5, 201903/5/19

It is challenging to collect performance traces of ASP.NET Core applications running inside Linux containers. This blog post describes an approach that use a sidecar container to collect CPU trace of an ASP.NET application running in a Linux container.

.NET Framework March 1, 2019 Cumulative Update for Windows 10 version 1809 and Windows Server 2019

Tara OverfieldMarch 1, 2019Mar 1, 201903/1/19

Today, March 1, we released the February 2019 Cumulative Update for Windows 10 version 1809 and Windows Server 2019. This release contains the following quality and reliability improvements.

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