Phillip Carter

Announcing F# 5

November 10th, 2020

F# 5 is the latest version of F#, the functional programming language for .NET. F# 5 is focused on making interactive and analytical programming a joy by revamping F# Interactive and adding support for Jupyter Notebooks and VSCode Notebooks. It also includes some highly-requested language features like string interpolations and nameof.

F# 5 update for August

August 27th, 2020

We’re excited to announce more updates to F# 5 which will go alongside .NET 5 preview 8! We've shipped various updates since the beginning of this year: Today, we're pleased to announce the completion of the F# 5 feature work. There is one minor enhancement planned for the .NET 5 RC, but other than that we are finished with F# 5! ...

Help us improve Visual Studio project tooling for .NET Core

August 19th, 2020

We're currently planning our next set of investments in Visual Studio project tooling for .NET. This tooling, called a project system, sits at the heart of nearly every major action you perform when writing .NET code in Visual Studio. What is the .NET project system? The .NET project system is a set of components that power nearly ...

F# 5 and F# tools update for June

June 26th, 2020

We’re excited to announce more updates to F# 5 today! We shipped an initial set of features with F# 5 preview 1, and they have all been stabilizing since that release including a updates from last month. Today, we’re happy to announce some new language features, a sneak peek at using F# in VSCode notebooks, and some F# tooling updates that...

F# 5 and F# tools update

May 20th, 2020

We're excited to announce some updates to F# 5 today! We shipped a lot of preview features since F# 5 preview 1, and they have all been stabilizing since that release. Today, we're happy to announce some minor additions to F# 5 and talk about some pretty cool performance work we've been doing. Here's how you get the latest release: ...

Introducing C# Source Generators

April 29th, 2020

We're pleased to introduce the first preview of Source Generators, a new C# compiler feature that lets C# developers inspect user code and generate new C# source files that can be added to a compilation. This is done via a new kind of component that we're calling a Source Generator. To get started with Source Generators, you'll need to ...

Announcing F# 5 preview 1

March 18th, 2020

We're excited to announce that F# 5 preview 1 is now available! Here's how to get it: If you're using Visual Studio on Windows, you'll need both the .NET 5 preview SDK and Visual Studio Preview installed. Using F# 5 preview You can use F# 5 preview via the .NET 5 preview SDK, or through the .NET and Jupyter Notebooks support. If you'...

Announcing F# 4.7

September 23rd, 2019

We’re excited to announce general availability of F# 4.7 in conjunction with the .NET Core 3.0 release! In this post, I’ll show you how to get started, explain everything in F# 4.7 and give you a sneak peek at what we’re doing for the next version of F#. F# 4.7 is another incremental release of F# with a focus on infrastructural changes...

Try out Nullable Reference Types

August 6th, 2019

Try out Nullable Reference Types With the release of .NET Core 3.0 Preview 7, C# 8.0 is considered "feature complete". That means that the biggest feature of them all, Nullable Reference Types, is also locked down behavior-wise for the .NET Core release. It will continue to improve after C# 8.0, but it is now considered stable with ...

The F# development home on GitHub is now dotnet/fsharp

May 20th, 2019

TL;DR We've moved the F# GitHub repository from microsoft/visualfsharp to dotnet/fsharp, as specified in the corresponding RFC. F# has a somewhat strange history in its name and brand. If we roll back the clocks to the year 2015, F# sort of had two identities. One side of this was Visual F#, or "VisualFSharp"; a product within Visual ...