C# Futures: Relaxed Overrides

by Jonathan Allen on  Apr 26, 2017

A commonly requested feature in .NET is the ability to use covariant return types. An example of this would be overriding “virtual object Clone()” with “override Widget Clone()”. From a type safety perspective, this is perfectly acceptable, but C# doesn’t currently allow it.

C# Futures: Read-Only Local Variables

by Jonathan Allen on  Apr 24, 2017 1

Not too long ago the proposal for read-only local variables was revived. This is a much more modest feature than the read-only references proposal, but the two are complementary.

C# Futures: Read-Only References and Structs

by Jonathan Allen on  Apr 19, 2017 2

In C++ we have a feature known as “const”. This can be applied to parameters so that the caller knows that function will not modify the parameter and/or the object the parameter references. Under this proposal, C# would get something similar.

C# Futures: Nullable Reference Types

by Jonathan Allen on  Apr 17, 2017 2

No, the headline isn’t a typo. One of the new proposals for C# is to assume that all reference variables are non-nullable by default. Under the new syntax, you would need to explicitly indicate when a reference variable is nullable, just as you do for value types.

.NET Futures: Type Classes and Extensions

by Jonathan Allen on  Apr 12, 2017

Another feature being considered for future versions of .NET are type classes. Referred to as “shapes” in the Shapes and Extensions proposal, they would greatly increase the capabilities of .NET generics.

.NET Futures: Multiple Inheritance

by Jonathan Allen on  Apr 10, 2017 2

A controversial new proposal for .NET suggests the introduction of a limited form of multiple inheritance via abstract interfaces. This feature was inspired by Java’s default methods.

.NET Core Tools 1.0 Released with Full C# Support

by Jeff Martin on  Mar 13, 2017

The .NET Core Tools has produced its first 1.0 release. Focused on C#, the tools provide .NET Core developers easy-to-build applications for .NET Core and ASP.NET Core. While their release coincides with the launch of Visual Studio 2017, this is a multiplatform toolset supporting Windows, Linux, and Mac OS systems.

Microsoft's Plans for the Future of .NET

by Jeff Martin on  Feb 03, 2017 5

Microsoft develops C#, Visual Basic, and F# in public but doesn't always share its plans for these popular languages. Mads Torgersen has provided some new guidance on where Microsoft plans to take these languages in the future.

Testimonial on Using F# by Microsoft's Project Springfield Team

by Pierre-Luc Maheu on  Jan 02, 2017

Project Springfield is a fuzz testing service for finding security critical bugs in software. William Blum, principal software engineering manager on the Springfield team at Microsoft Research, explains how adopting F# helped the team build the cloud service.

Developer Panel Discusses Microservices, Containers and Serverless at Microsoft Connect

by Pierre-Luc Maheu on  Nov 30, 2016

A developer panel was held at Microsoft Connect() following the multiple annoucements of new features and releases. Microservices and containers are in the center of the discussion, along with Azure, serverless architecture and developer tooling.

JetBrains Rider: A New .NET IDE Based on IntelliJ and ReSharper

by Abel Avram on  Nov 22, 2016 4

JetBrains Rider was introduced in January of this year but spent the most part of the year in private Early Access Preview, not yet ready for the public. Now the EAP has been made available to everyone who wants to see what it is like to develop for .NET on the IntelliJ platform. There are some issues to be fixed before it becomes generally available but the tool is quite stable.

Google Releases .Net APIs for Google Cloud

by Pierre-Luc Maheu on  Oct 25, 2016

Google recently announced .Net support for Google Cloud APIs. This includes C# bindings and PowerShell cmdlets. A Visual Studio extension is also available, allowing to browse Google Cloud resources and to deploy Asp.Net applications on Google Compute Engine.

Survey: Android’s Lead is Consolidated

by Abel Avram on  Aug 10, 2016

According to the latest Developer Nation Q3 2016 survey from VisionMobile, Android’s lead over iOS as primary platform and developer mindshare has been consolidated. Also, Windows developers prefer C# in the cloud while Linux ones stay with Java.

Q&A on Akka.NET 1.1 with Aaron Stannard

by Pierre-Luc Maheu on  Jul 21, 2016

Akka.NET 1.1 was recently released, bringing new features and performance improvements. InfoQ reached out to Aaron Stannard, maintainer of, to learn more about Akka.Streams and Akka.Cluster. Stannard also explains how the roadmap is planned with regards to the JVM implementation of Akka.

C# 7 and Beyond with Mads Torgersen

by Pierre-Luc Maheu on  Jun 22, 2016 6

Mads Torgersen, program manager of C#, presents the upcoming C# 7 at QCon New York 2016. He also explains briefly the evolution of C# and introduces some features being developed for future versions.