F# Weekly #22, 2021 – .NET 6 Preview 4 and .NET Conf 2021 dates

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• F# and F# tools update for Visual Studio 16.10 | .NET Blog (microsoft.com)
• Announcing .NET 6 Preview 4 | .NET Blog (microsoft.com)
• ASP.NET Core updates in .NET 6 Preview 4 | ASP.NET Blog (microsoft.com)
• Introducing the .NET Hot Reload experience for editing code at runtime | .NET Blog (microsoft.com)
• Announcing .NET MAUI Preview 4 | .NET Blog (microsoft.com)
• ASP.NET Core 6 and Authentication Servers | ASP.NET Blog (microsoft.com)
• Announcing Entity Framework Core 6.0 Preview 4: Performance Edition (microsoft.com)
• Visual Studio 2019 v16.10 and v16.11 Preview 1 are Available Today! | Visual Studio Blog (microsoft.com)
• What’s New for F# in Visual Studio 16.10 — Visual Studio Magazine

Videos and Slides

• Why Every Day as a Developer Would Be Easier with F#, by Urs Enzler – YouTube
• Future Tech 2021: Luca Bolognese – Introduction to Functional Programming in F# – YouTube
• The future of modern application development with .NET (microsoft.com)
• Azure DevOps Podcast: David Ortinau on Multi-Platform App Development Using .NET MAUI – Episode 142

Blogs

• Client side GraphQL with F# – Akash Mair
• Doing some IO in F# – Angel D. Munoz
• Introduction to Functional Programming in F# – Luca Bolognese
• .NET Basics – Dusted Codes –  Dustin Moris Gorski
• Taking Advantage of the platform with Sutil and Web Components – Angel D. Munoz
• Grokking Lenses – Matt Thornton

F# vNext

F# and F# tools update for Visual Studio 16.10!

😍 Go to Definition on external symbols
🚣‍♀️ Smoother C# interop
🏋️ MORE perf and responsiveness improvements
🏇 MORE core compiler improvements

Using @VisualStudio and #fsharp? Check it out!https://t.co/XoE8MIPzEF

— Phillip Carter (@_cartermp) May 26, 2021

• feature/fastlist – faster list/array computation expressions by dsyme
• Regression on SDK 5.0.300: When using an identifier like __SOURCE_DIRECTORY__ in a type parameter one get FS3045 compilation error. · Issue #11610 · dotnet/fsharp
• Language selection by dbrattli · Pull Request #2448 · fable-compiler/Fable
• New language suggestions
  • Make C# methods with both optional and ParamArrays parameters easier to use from F# · Issue #1013
  • Unsigned right shift operator · Issue #1012
  • Assigning to tuples of assignables · Issue #1011
  • Show better error message when shadowing an existing identifier in a pattern · Issue #1010
  • Support base methods in closures · Issue #1009

Highlighted projects

• mausch/TypeProviderPlayground – Experiments with F# type providers
• Smaug123/fsharp-vectors – Type-safe vectors in F#
• Arshia001/FSharp.GrpcCodeGenerator – A protoc plugin to enable generation of F# code
• TheAngryByrd/TypeSafeInternals – Uses Myriad to generate type safe reflection calls to internal functions/properties/methods.
• humhei/FCSWatch – Run standard fsharp codes in watch mode
• gimpf/TomlProvider – An F# type provider for TOML files

New Releases

• Giraffe 5.0.0
• Giraffe.TokenRouter 2.0.0
• Fable 3.2.0
• FSharp.XExtensions 1.2.0
• NBomber v2.0.1
• FsToolkit.ErrorHandling 2.5.0
• BinaryDefense.FSharp.Analyzers 0.2.2
• MiniScaffold 0.26.4
• SqlHydra.SqlServer v0.40.0
• FSharp.SystemTextJson 0.17.4

I was able to compile my first F# Mac Catalyst app using .NET 6 Preview 4. So excited to get to this point! Now I just need to figure out how to contribute templates… pic.twitter.com/T87DbED5gg

— Frank A. Krueger (@praeclarum) May 27, 2021

That’s all for now. Have a great week.

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