Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• VS Code extension marketplace wars: Cursor users hit roadblocks • DEVCLASS
• .NET 10 Preview 3 is now available! – .NET Blog
• .NET Aspire 9.2 is Now Available with New Ways to Deploy – .NET Blog
• Build a Model Context Protocol (MCP) server in C# – .NET Blog
• Better Together: .NET Aspire, Azure Functions, and Visual Studio – Microsoft for Developers
• Announcing Hybrid Search with Semantic Kernel for .NET | Semantic Kernel
• .NET and .NET Framework April 2025 servicing releases updates – .NET Blog
• How we ended up rewriting NuGet Restore in .NET 9 – .NET Blog
• Multi-Process CPU Usage Analysis in Visual Studio – Visual Studio Blog

I started playing with the new preview of #modelcontextprotocol support in #azurefunctions. It's a port of my existing Untappd MCP server and I'm very, _very_ early in the creation phase: github.com/jtucker/mcp-…Written in #fsharp fwiw

— Jason T (@jtucker.bsky.social) 2025-04-07T16:00:42.436Z

Videos

• Contributing to the F# Open Source ecosystem
• CQRS demystified: F# + Akka.NET w/ Onur Gumus – Akka.NET Community Standup: 04-09-2025
• .NET Preview Unboxed – .NET 10 Preview 3 – C# 14 Extension Members, CLI Awesomeness, Blazor, & APIs!
• Blazor Community Standup – Updates in .NET 10 Preview 3
• .NET Aspire Community Standup – .NET Aspire 9.2 Release Party
• .NET AI Community Standup – 🔮 Fortune-Telling with Semantic Kernel
• .NET MAUI Community Standup – Next in .NET 10 and Visual Studio

FYI Onur Gumus is doing work on the Akka.NET community standup showing #fsharp CQRS and chiming into the chat saying "I NEED TO LEARN F#" 🙂 #dontetwww.youtube.com/live/GBADP7O…

— SpeakEZ.ai (@speakezai.bsky.social) 2025-04-09T18:04:52.237Z

Blogs

• Why F#? – (think) – Bozhidar Batsov
• Tests are Documentation, or are they? – planetgeek.ch – Urs Enzler
• Configuration with FsConfig | Compositional IT
• Targeting Node, Deno and Bun with F# | Tunaxor’s Blog

Highlighted projects

• jtucker/mcp-untappd-server-dotnet: An example MCP Azure Function in F#
• WyattTechnology/WAkka: F# interface for Akka.NET
• glokhov/fini: Configuration File
• xp44mm/FSharp.Compiler.SyntaxTreeX: `FSharp.Compiler.SyntaxTreeX` is a subtree of `FSharp.Compiler.SyntaxTree`.
• UnoSD/Pulumi.FSharp.Extensions: F# computational expressions to reduce boilerplate in Pulumi code
• roboz0r/XParsec: XParsec is a parser combinator library for F#
• AngelMunoz/Bix: Bix, an F# micro-framework for cross-runtime JavaScript backends
• AngelMunoz/Hox: Async HTML rendering and a simplistic but extensible DSL based on css selectors.

New Releases

• NuGet Gallery | Ecng.Compilation.FSharp 1.0.47
• NuGet Gallery | XstarS.GuidModule 2.6.1
• NuGet Gallery | FCQRS.Model 2.2.2
• NuGet Gallery | FAkka.FSharp.Collections.ParallelSeq 1.0.0
• NuGet Gallery | WAkka 1.5.3
• NuGet Gallery | Feliz.ReactSlider 0.3.7
• NuGet Gallery | Feliz.ChartJS 1.0.7
• NuGet Gallery | Feliz.Tailwind 3.0.8
• NuGet Gallery | SQLProvider 1.4.13
• NuGet Gallery | Fini 0.2.0
• NuGet Gallery | FSharp.Idioms 1.4.29
• NuGet Gallery | Pulumi.FSharp.Core 3.1.6
• NuGet Gallery | FAkka.Chiron 9.0.201
• NuGet Gallery | SqlHydra.Cli 2.8.2
• NuGet Gallery | NBomber.Http 6.0.2
• NuGet Gallery | XParsec 0.0.3
• NuGet Gallery | FSharp.Compiler.SyntaxTreeX 43.9.201
• NuGet Gallery | FSharp.Core 9.0.300-beta.25181.1

It’s also a great reminder to all #fsharp devs that wanted “official” LSP/VSCode-extension from MSFT… Ionide and FsAutoComplete may not be perfect, but at least I won’t fuck around with licenses.

— Krzysztof Cieslak (@kcieslak.io) 2025-04-09T23:24:44.822Z

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

If you want to help keep F# Weekly going, click here to jazz me with Coffee!

 

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• .NET on Heroku: Now Generally Available | Heroku
• Semantic Kernel Agents are now Generally Available | Semantic Kernel
• Microsoft partners with Anthropic to create official C# SDK for Model Context Protocol – Microsoft for Developers
• Using OpenAI’s Audio-Preview Model with Semantic Kernel | Semantic Kernel
• Getting Started with Claude models on Azure Databricks | All things Azure
• Modernizing push notification API for Teams – .NET Blog

Join the F# group on LinkedIn!www.linkedin.com/groups/13506…#fsharp #fablecompiler

— F# Online (@fsharponline.bsky.social) 2025-03-29T19:10:10.822Z

Videos

• Electrifying Norway with F# and DDD – Almir Mesic on Vimeo
• The Simplest Way to Measure Code Coverage? – YouTube
• Where next, C#? – Mads Torgersen – NDC London 2025
• Advanced Cloud Native Development with .NET Aspire – Scott Hunter & Maddy Montaquila
• Blazor Community Standup – Updates in .NET 10 Preview 3
• .NET MAUI Community Standup – Next in .NET 10 and Visual Studio

New link to the video vimeo.com/1070647821 #fsharp

— Sergey Tihon 🦔🦀 (@sergeytihon.com) 2025-03-31T12:00:47.508Z

Blogs

• Delaunay triangulation: Bowyer-Watson algorithm · Mathias Brandewinder blog
• Exploring the Latest Updates: DaisyUI 5 and Feliz.DaisyUI 5 | Compositional IT
• Why F#? – Bozhidar Batsov
• Parallel ultra lite F# CSV line parser – Anibal Yeh
• Math and F# = A cool combination

Highlighted projects

• mlaily/SimpleTemplateTypeProvider: An F# type provider for simple but strongly typed text templates.
• speakez-llc/FlightDeck: A Hugo inspired static site generator
• DragonFrai/Ferrum – F# library for working with dynamic Error types
• nfdi4plants/ARCtrl: Polyglot (.NET/JS/Python) library for management of Annotated Research Contexts (ARCs) using an in-memory representation and runtime-agnostic contract systems.
• glokhov/fini: INI configuration file
• dnovhorodov/FunqTypes: Lightweight funky functional types for C#
• glokhov/csharp: C# function wrapper
• WyattTechnology/WAkka: F# interface for Akka.NET
• x-stars/GuidGenerator: .NET RFC 4122/9562 compliant GUID generator library.
• falcoframework/Falco.Datastar: Falco + 🚀Datastar = ❤️

New Releases

• FS.FullCalendar 0.0.1-beta08
• Fabulous.AST 1.4.0
• SimpleTemplateTypeProvider 1.3.0
• FlightDeck 0.20.0
• Ferrum 0.2.0
• ARCtrl.Spreadsheet 2.5.1
• Fini 0.1.4
• FunqTypes 1.2.0
• FInvoke 0.3.0
• SAFE.Template 5.1.2
• FCQRS.Model 2.2.0
• WAkka 1.5.2
• XstarS.GuidModule 2.5.1
• Flowgix.Core 0.1.0
• Falco.Datastar 1.0.0-beta2
• G-Research.FSharp.Analyzers 0.14.0

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

If you want to help keep F# Weekly going, click here to jazz me with Coffee!

 

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• WebSharper 8.0
• LINQPad 8 for macOS
• Exploring new .NET releases with Dev Containers – .NET Blog
• Use BrowserStack App Automate with Appium UI Tests for .NET MAUI Apps – .NET Blog
• Xbox + .NET Aspire: Transforming Local Development Practices – .NET Blog
• Introducing Visual Studio Hub – Visual Studio Blog
• Debugging with the AI-powered IEnumerable visualizer – Visual Studio Blog
• Building a Model Context Protocol Server with Semantic Kernel | Semantic Kernel
• Semantic Kernel Agent Framework RC2 | Semantic Kernel

All #fsharp users!Checkout the wonderful new testimonial page at fsharp.org/testimonials! Courtesy of @amuletofyendor.bsky.socialSubmit your own testimonials at github.com/fsharp/fshar…

— F# Online (@fsharponline.bsky.social) 2025-03-23T16:51:35.497Z

Videos

• Data ‘pickling’ in the F# compiler
• How to run an F# + Falco Webapp in a Docker Container
• .NET Aspire Community Standup – Adding and Extending Healthchecks
• .NET AI Community Standup: Evaluate the Quality of Your AI Applications
• On .NET Live – .NET in 3D

Blogs

• Getting Feliz.DaisyUI and the Fable plugin for Vite to play nice | Compositional IT
• How to run an F# + Falco Webapp in a Docker Container
• 🚀 Unlocking the Power of F#: The Functional Programming Game Changer
• Fullstack F# with Elmish Land and ASP.NET | Elmish Land

F# vNext

• Adding a dot before the parameter and property name when calling methods · Issue #1414 · fsharp/fslang-suggestions

#fsharp has just reached 4K stars on github! 🥳

— Vladimir Shchur (@lanayx.bsky.social) 2025-03-28T17:42:11.022Z

Highlighted projects

• DragonFrai/Ferrum – library for working with dynamic Error types.
• teo-tsirpanis/Covarsky: Enabling co(ntra)variance in F# types
• WyattTechnology/WAkka: F# interface for Akka.NET
• CSBiology/ProteomIQon – collection of open source computational proteomics tools

New Releases

• ARCtrl 2.5.1
• WebSharper.Templates 8.0.0.541
• Ionide.Analyzers 0.14.4
• fsharp-analyzers 0.30.0
• FSharp.Analyzers.SDK.Testing 0.30.0
• Ferrum 0.1.0
• ShapeSifter 1.1.14
• FS.FluentUI 2.4.0
• Partas.Solid 0.2.27
• Rhino.Scripting.FSharp 0.10.2
• Feliz.ChartJS 1.0.4
• Feliz.Tailwind 3.0.7
• Covarsky 1.4.3
• WAkka 1.5.1
• Elmish 4.3.0
• ProteomIQon 0.0.9
• TakeUntil 0.1.1
• WoofWare.Myriad.Plugins 4.0.14
• Microsoft.dotnet-interactive 1.0.617701
• Microsoft.DotNet.Interactive.FSharp 1.0.0-beta.25177.1
• linq2db.FSharp 6.0.0-preview.4

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

If you want to help keep F# Weekly going, click here to jazz me with Coffee!

 

Welcome to F# Weekly,

Featured image for this post created by @fsharp_learning.

A roundup of F# content from this past week:

News

• MSTest 3.8: Top 10 features to supercharge your .NET tests! – .NET Blog
• .NET 10 Preview 2 is now available! – .NET Blog
• Find the IDE features you need with GitHub Copilot and Search – Visual Studio Blog
• Introducing automatic documentation comment generation in Visual Studio – Visual Studio Blog
• Vector Search PDF & Documents SQL AI Simplified – Azure SQL Devs’ Corner
• Welcome to the Azure AI Foundry Blog! | Azure AI Foundry Blog
• Introducing Model Context Protocol (MCP) in Azure AI Foundry: Create an MCP Server with Azure AI Agent Service | Azure AI Foundry Blog

Videos

• Demystifying the Enigma Machine – a Functional Journey by Isaac Abraham
• Func Prog Sweden 2025 at Kivra
• OpenTelemetry in your test suite
• ASP.NET Community Standup – AI-powered Blazor web apps with the new .NET AI template
• .NET Preview Unboxed – .NET 10 Preview 2, DevContainers, Blazor, & More!
• On .NET Live – Hands-On with .NET Aspire 9.0
• .NET Data Community Standup – Stop using Entity Framework as a DTO provider!
• Making Apps Converse in Natural Language
• Keynote: The past, present, and future of AI for application developers – Steve Sanderson
• Null & Void – Everything about Nothing in .NET – Stefan Pölz – NDC London 2025
• Demystify cloud-native development with .NET Aspire
• C#’s Functional Journey – Mads Torgersen – NDC London 2025

Blogs

• Delaunay triangulation with Bowyer-Watson: circumcircle · Mathias Brandewinder blog
• Optimistic updates with SAFE Stack and F# | Compositional IT

Our blog this week discusses how you can implement optimistic updates with F#, for example for use in SAFE apps!#dotnet #[email protected]

— Compositional IT (@compositional-it.com) 2025-03-21T10:45:01.701Z

Highlighted projects

• Smaug123/WoofWare.PrattParser: Pratt parser in F#
• Smaug123/WoofWare.Myriad: Some Myriad source generators for F#
• glokhov/take-until: Implementation of a takeUntil function
• goswinr/AvalonLog: A thread-safe and colorful text viewer based on AvalonEdit
• goswinr/Fesh: F# scripting editor for Windows
• goswinr/Euclid: A 2D and 3D geometry library for F#
• PragmaticFlow/NBomber: Distributed load-testing framework for .NET. Create distributed load test scenarios entirely using plain C# or F#. It is designed to test any system regardless of the protocol or a semantic model (Pull/Push).
• afxres/binary: Serialization library for C# and F#.
• speakez-llc/Farscape: F# Native Library Binding Generator

New Releases

• FSharp.Control.Reactive 6.1.2
• FSharp.Control.Reactive.Testing 6.1.2
• FSharp.Data.JsonSchema 2.1.0
• Fable.Elmish.Browser 4.1.0
• Partas.Solid 0.2.26
• ShapeSifter 1.1.13
• HeterogeneousCollections 1.0.12
• Ionide.Analyzers 0.14.2
• Oxpecker.Solid 0.6.0
• Fabulous.AST 1.3.0
• WoofWare.PrattParser 0.2.4
• WoofWare.Myriad.Plugins 4.0.13
• Ecng.Compilation.FSharp 1.0.44
• TakeUntil 0.1.0
• Fesh 0.25.0
• AvalonLog 0.20.0
• Euclid 0.13.0
• NBomber 6.0.1
• Mikodev.Binary.FSharp 5.8.0
• FSharp.Core 9.0.300-beta.25124.4
• FsToolkit.ErrorHandling 5.0.0-beta010

Fun fact: according to @orta.io, a prehistoric version of #TypeScript was actually implemented in #FSharp (youtu.be/X8k_4tZ16qU?…).

— XTY 🦧 (@xty.io) 2025-03-19T13:41:17.098Z

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

If you want to help keep F# Weekly going, click here to jazz me with Coffee!

 

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• A 10x Faster TypeScript – TypeScript
• Hello HybridCache! Streamlining Cache Management for ASP.NET Core Applications – .NET Blog
• Introducing support for SLNX, a new, simpler solution file format in the .NET CLI – .NET Blog
• New, Simpler Solution File Format – Visual Studio Blog
• Aspire SQL Server Data API Builder with .NET Integration – Azure SQL Devs’ Corner
• Announcing Microsoft Desired State Configuration v3.0.0 – PowerShell Team
• GPT-4o Copilot code completion model available now in Visual Studio public preview – Visual Studio Blog
• The Future of AI: Customizing AI Agents with the Semantic Kernel Agent Framework | Semantic Kernel

Videos

• Thirteen ways of looking at a Turtle – Scott Wlaschin – NDC London 2025
• F# web gen – TailwindCSS, DaisyUI and PrismJS
• ASP.NET Community Standup – What’s new for Blazor in .NET 10 Preview 2
• ASP.NET API Review & .NET API Review

Blogs

• Background Workers in F# | Compositional IT
• Building a local AI Chat app in F# and Elmish Land with Ollama and DeepSeek | Elmish Land

🚀 Want to build your own AI chat app? In this guide, I use F#, Elmish Land, Ollama and DeepSeek to create a local AI-powered chat — no cloud required!elmish.land/blog/buildin…#fsharp #fable-compiler #AI #elmish #ollama #deepseek

— Kristofer Löfberg (@klofberg.bsky.social) 2025-03-13T18:48:15.304Z

Highlighted projects

• frank-fs/frank: F# computation expressions for defining HTTP resources and configuring IWebHostBuilder.
• speakez-llc/fsharp-mlir-hello: Proof of Concept using MLIR and LLVM to build binaries from F# code
• goswinr/Dicts: F# Extensions and modules around Dictionary<‘T>
• shayanhabibi/Partas.Solid – Solid-JS wrapper in Oxpecker style.
• hedgehogqa/fsharp-hedgehog-experimental: Hedgehog with batteries included: Auto-generators, extra combinators, and more.
• goswinr/Euclid: A 2D and 3D geometry library for F#
• glokhov/csharp: FSharp wrapper for CSharp methods which can throw an Exception
• ken-okabe/timeline: Language-Agnostic Reactive State Management Library

#llvm #mlir In case anyone in the #fsharp sphere wants to know how easy/difficult it may be to move beyond the #dotnet sdk… this was hacked together in a few hours including a break for the evening meal.github.com/speakez-llc/…

— SpeakEZ.ai (@speakezai.bsky.social) 2025-03-14T02:21:15.835Z

New Releases

• Frank 6.3.0
• FS.FluentUI 2.3.1
• Akka.FSharp 1.5.39
• Euclid 0.13.0
• Dicts 0.4.0
• Farmer 1.9.12
• Rhino.Scripting.FSharp 0.10.1
• FSharp.Data 6.6.0
• SQLProvider 1.4.12
• SwaggerProvider 2.2.3
• Hedgehog.Experimental 0.8.0
• Partas.Solid 0.2.16
• Fable 5.0.0-alpha.12
• Fable.Compiler 5.0.0-alpha.12
• FSharp.SystemCommandLine 1.0.0-beta4
• WebSharper 8.0.0.525-rc2
• FS.FullCalendar 0.0.1-beta02
• Fable.React 10.0.0-alpha.1

❤️ #fsharp

— Sergey Tihon 🦔🦀 (@sergeytihon.com) 2025-03-11T20:09:27.960Z

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

If you want to help keep F# Weekly going, click here to jazz me with Coffee!

 

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Write your Aspire AppHost in F#!
• C# vs F# | AI comparison
• Easy API Testing | ApiStub.FSharp
• .NET AI Template Now Available in Preview – .NET Blog
• Unlock new possibilities for AI Evaluations for .NET – .NET Blog
• New Debugging and Profiling Features in Visual Studio (v17.13) – Visual Studio Blog
• Great new productivity features in Visual Studio – Visual Studio Blog
• Azure Data Studio Retirement – Azure SQL Devs’ Corner

🚀 Exciting news for F# devs! Elmish Land is here – the new home for building scalable front-end web apps with F# & Elmish.Why does this matter? Find out in my latest blog post:👉 elmish.land/blog/introdu…#FSharp #Elmish #WebDev

— Kristofer Löfberg (@klofberg.bsky.social) 2025-03-02T21:58:26.107Z

Videos

• SAFE Stack: The Pit of Success for Functional Web Programming – Isaac Abraham | Lambda Days 2024
• ASP.NET Community Standup – HybridCache updates and futures
• .NET MAUI Community Standup – Agent Maui: Copilot Pro-tips for devs – YouTube
• .NET API Review
• .NET MAUI Community Toolkit Monthly Standup, March 2025

Blogs

• Delaunay triangulation with Bowyer-Watson: initial super triangle · Mathias Brandewinder blog
• Adopting SAFE Meta-packages | Compositional IT
• Introducing Feliz.Shadcn: Effortless UI without CSS | Elmish Land
• Creating a to-do app with Elmish Land | Elmish Land
• Using Tailwind CSS with Fable and Elmish Land | Elmish Land
• Mastering Flexbox Alignment with Tailwind CSS | Elmish Land
• Introducing Feliz.Shadcn: Effortless UI without CSS | Elmish Land

Highlighted projects

• Tarmil/FSharp.Aspire.Hosting: Package to create Aspire App Hosts in F#
• AArnott/Nerdbank.MessagePack: A .NET MessagePack serialization library with great performance and simplicity.

New Releases

• SAFEr.Template 5.0.1
• Feliz.DaisyUI 5.0.0
• FunqTypes 1.0.1
• Rhino.Scripting.FSharp 0.10.0
• Expecto 10.2.2
• Partas.Solid 0.2.6
• Fabulous.AST 1.2.0
• FSharp.Aspire.ProjectTemplates 9.1.0
• Ionide.Analyzers 0.14.1
• fsharp-analyzers 0.29.1
• Fable.Core 4.5.0
• SqlHydra.Query 2.8.0
• Fable 5.0.0-alpha.11
• Fable.React 10.0.0-alpha.1
• Terminal.Gui 2.0.0-prealpha.1834
• MathNet.Numerics.FSharp 6.0.0-beta2
• Nerdbank.MessagePack 0.4.5-beta
• WebSharper 8.0.0.517-beta2

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

If you want to help keep F# Weekly going, click here to jazz me with Coffee!

 

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• School of .NET
• .NET 10 Preview 1 is now available! – .NET Blog
• .NET Aspire 9.1 is here with six great new dashboard features, and more! – .NET Blog
• Let’s Learn .NET: GitHub Copilot Event – .NET Blog
• Rust in time! Announcing the Azure SDK for Rust Beta. 🎉 – Azure SDK Blog
• Claude 3.7 Now Available in GitHub Copilot for Visual Studio – Visual Studio Blog
• Terminal Chat now included in GitHub Copilot Free – Windows Command Line
• Announcing AI Shell Preview 2 – PowerShell Team
• Leverage vision in Copilot Chat – Visual Studio Blog
• Dev Proxy v0.25 with automatic shut down and more

Videos

• Using ApiStub.FSharp to integration test your ASP.NET APIs
• .NET Aspire Community Standup – .NET Aspire 9.1 Release Party
• Let’s Learn .NET – GitHub Copilot
• .NET Previews Unboxed – .NET 10 Preview 1, C# 14, HybridCache, & More
• .NET AI Community Standup – Exploring AI Templates for Visual Studio
• On .NET Live – Multi-agent workflow using Azure Durable Functions and Semantic Kernel
• Building Intelligent Apps with Semantic Kernel

Blogs

• Building Functional .NET Applications: a Guide for Choosing between F# vs C# – InfoQ
• Async Commands with Avalonia FuncUi · Mathias Brandewinder blog
• Debouncing request in Feliz using custom hooks | Compositional IT
• Using F# to build React apps: state management with Elmish | Compositional IT
• Using F# to build React apps: npm packages | Compositional IT
• Using F# to build React apps: components and hooks with Feliz | Compositional IT
• Using F# to build React apps: transpiling to JS with Fable | Compositional IT

Functional .NET is having a moment. Lots of interest in making C# more functional, but F# is already there. Nahla Davies breaks it down.Worth a read!#dotnet #fsharp @fsharponline.bsky.social

— Compositional IT (@compositional-it.com) 2025-02-24T10:45:06.626Z

F# vNext

• ASP.NET Core Roadmap for .NET 10 · Issue #59443 · dotnet/aspnetcore
• Tryparse for union cases · Issue #1411 · fsharp/fslang-suggestions

Highlighted projects

• CSBiology/MzIO: Generic data model to unify various readers and writers for different formats used in protein mass spectrometry
• goswinr/FsEx: An F# extension and utility library
• Tarmil/FSharp.Aspire.Hosting: Package to create Aspire App Hosts in F#
• Scaper/ScaperPublic: A dynamic discrete choice model for activity generation and scheduling

New Releases

• FsEx 0.16.0
• MzIO 0.1.7
• Feat 0.2.1
• SQLProvider 1.4.9
• FSharp.Aspire.Hosting.Orleans 9.0.0
• FSharp.Aspire.Hosting.Azure 9.0.0
• FSharp.Aspire.Hosting.Aws 9.0.0
• FSharp.Aspire.Hosting.AppHost 9.0.0
• FSharp.CommunityToolkit.Aspire.Hosting.Azure.StaticWebApps 9.0.0
• Oxpecker.Solid 0.5.0
• Oxpecker.Solid.FablePlugin 0.5.0
• Swate.Components 1.0.0-beta.27
• FSharp.Core 9.0.300-beta.25079.4
• FSharp.Compiler.Service 43.9.300-preview.25079.4
• FsToolkit.ErrorHandling 5.0.0-beta007
• WebSharper 6.1.9.513
• WebSharper.Compiler 6.1.9.513
• WebSharper.Remarkable 8.0.0.512-beta2

Great turnup and focused devs trying out the brand new English version of the #fsharp "School of .NET" by NRK. Thanks to NNUG for hosting and Heidi, Teo, Matias and Thomas for the workshop!github.com/nrkno/dotnet…

— Bjørn Einar Bjartnes (@bjartnes.bsky.social) 2025-02-26T17:53:34.985Z

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

If you want to help keep F# Weekly going, click here to jazz me with Coffee!

 

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Juniper Programming Language (compiler written in F#)
• Building .NET AI apps with Chroma – .NET Blog
• Rust in time! Announcing the Azure SDK for Rust Beta. 🎉 – Azure SDK Blog
• .NET MAUI Performance Features in .NET 9 – .NET Blog
• GitHub Copilot for Xcode Chat – Public Preview Now Available | Xcode
• Visualize ROI of your GitHub Copilot Usage, How it works!
• Unlocking More Power: Tool Calling in GitHub Copilot for Visual Studio – Visual Studio Blog
• Introducing Code Referencing for GitHub Copilot Completions in Visual Studio – Visual Studio Blog

May the wonders never cease – #fsharp markup is finally supported in Teams 😏⏳🤔

— SpeakEZ.ai (@speakezai.bsky.social) 2025-02-22T14:04:47.701Z

Videos

• Hackable PXL-Art for the Masses
• Building a SaaS in F# | Learning F# | Day 1
• How to Create Custom HTML Attributes with F# + Falco.Markup
• Blazor Community Standup – Razor Tooling and Hot Reload update
• On .NET Live – Multi-agent workflow using Azure Durable Functions and Semantic Kernel
• .NET Aspire Community Standup – .NET Aspire 9.1 Release Party

Blogs

• Mastering Fable: Simplifying Your Journey by Knowing What’s Available | Compositional IT

F# vNext

• Allow mutating structs through read-only property setters in non-mutable contexts · Issue #1410 · fsharp/fslang-suggestions
• Property references · Issue #1409 · fsharp/fslang-suggestions

Highlighted projects

• calebh/Juniper – functional reactive programming language
• SchlenkR/FsxWatcher: A dotnet tool that watches F# script changes and sends them to FSI.
• boogie-org/forro: A sample verifier for a toy language built on top of Boogie

New Releases

• fantomas 7.0.1
• SqlHydra.Cli 2.7.0
• JsonDSL 0.3.1
• Akka.FSharp 1.5.38
• DynamicObj 7.0.1
• FsxWatcher 0.0.2

Good Morning, friends of #fsharp! Here are some news:- New dotnet tool: FsxWatcher- Watched all F# script files in a folder- Sends them to F# Interactive (hosted inside the tool)I find this useful when writing PXL-Apps (see below).www.nuget.org/packages/Fsx…cc @sergeytihon.com F# ❤️

— SchlenkR (@schlenkr.bsky.social) 2025-02-23T07:24:10.454Z

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

If you want to help keep F# Weekly going, click here to jazz me with Coffee!

 

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• New Features for Enhanced Razor Productivity! – .NET Blog
• Announcing Generative AI for Beginners – .NET – .NET Blog
• C# Dev Kit Updates: .NET Aspire, Hot Reload, and More! – .NET Blog
• Microsoft.Testing.Platform: Now Supported by All Major .NET Test Frameworks – .NET Blog
• Visual Studio 2022 v17.13 is Now Available! – Visual Studio Blog
• Bells and whistles: Building with Microsoft Copilot Studio | Power Platform Developer Blog
• First preview of Visual Studio 2022 v17.14 – Visual Studio Blog
• New restrictions on package loading – Visual Studio Blog
• Guest Blog: Step-by-Step Guide to Building a Portfolio Manager: A Multi-Agent System with Microsoft Semantic Kernel and Azure OpenAI | Semantic Kernel
• New Features for Enhanced Razor Productivity! – .NET Blog
• .NET Aspire and Data API builder with the Community Toolkit – Azure SQL Devs’ Corner

❤️‍🔥 We're glad to see the powerful #fsharp library DiffSHarp refreshed – more than a a new name, it's getting a new lease on life. Updates to Torch as well as plans for a #csharp API are in the works. It's never been a better time to work in #dotnet and #opensource. github.com/fsprojects/F…

— SpeakEZ.ai (@speakezai.bsky.social) 2025-02-16T03:36:39.525Z

Videos

• Build a Simple Markdown Blog with F# and Falco
• Integrate .NET Aspire into your .NET projects with VS Code & C# Dev Kit
• On .NET Live – Build Faster, Optimize Smarter!
• ASP.NET Community Standup – Exciting (and breaking) changes for OpenAPI in .NET 10
• .NET AI Community Standup – Local AI on .NET using Ollama & .NET Aspire
• Languages & Runtime Community Standup – Tensors in .NET
• .NET API Review

Blogs

• Which React hooks to use from F# | Compositional IT

F# vNext

• Constant expressions in patterns · Issue #1408 · fsharp/fslang-suggestions
• Fable Vite and Vitest (modern js/ts/react tooling support official · fable-compiler/Fable · Discussion #4043

@dsyme.bsky.social 🚧 Just an FYI we've been looking into DiffSharp per your suggestion. Frankly we think everyone in #dotnet should be looking into this for #AI. 🚀 Model tuning on GPU coupled with running with LlamaSharp is a huge opportunity that should wake up #fsharp and #csharp devs. 💙 🐓 🌞

— SpeakEZ.ai (@speakezai.bsky.social) 2025-02-12T13:08:26.751Z

Highlighted projects

• fsprojects/Furnace: Production-grade ML – F# power & precision guiding Torch performance
• nfdi4plants/ARCTokenization: Definition of controlled vocabulary tokens and library to tokenize ARC metadata into these tokens
• Dolfik1/Funogram: F# Telegram Bot Api library
• nfdi4plants/Swate: Excel Add-In for annotation of experimental data and computational workflows.
• cmeeren/Felicity: Boilerplate-free, idiomatic JSON:API for your beautiful, idiomatic F# domain model. Optimized for developer happiness.
• CSBiology/MzIO: Generic data model to unify various readers and writers for different formats used in protein mass spectrometry
• ninjarobot/KeyVaultFuse: Creates a FUSE filesystem for Azure Key Vault
• deadblackclover/fsharp-native-dll: Example of using native libraries in F#
• asfaload/collector: checksums collector

New Releases

• Furnace.Data 1.0.8
• Furnace-cuda 1.0.8
• SQLProvider 1.4.8
• Facil 2.15.0
• G-Research.FSharp.Analyzers 0.13.0
• Ionide.Analyzers 0.14.0
• fsharp-analyzers 0.29.0
• ControlledVocabulary 1.2.0
• ARCTokenization 6.1.0
• Funogram.Telegram 8.3.0
• Felicity 0.23.2
• MzIO 0.1.4
• Fable.Browser.Dom 2.18.1
• FSharp.Core 9.0.201
• FSharp.Compiler.Service 43.9.201
• Oxpecker 1.2.0
• Oxpecker.ViewEngine 1.1.0

Just got a comment on the past edition of F# Weekly. What do you think about it #fsharp ? wordpress.com/reader/blogs…

— Sergey Tihon 🦔🦀 (@sergeytihon.com) 2025-02-14T17:58:29.933Z

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

If you want to help keep F# Weekly going, click here to jazz me with Coffee!