Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• .NET Conf 2025 Recap – Celebrating .NET 10, Visual Studio 2026, AI, Community, & More – .NET Blog
• Introducing Data Ingestion Building Blocks (Preview) – .NET Blog
• Cross-Platform Age Verification in .NET MAUI Applications – .NET Blog
• Unlocking the Power of Web with Copilot Chat’s New URL Context – Visual Studio Blog
• Visual Studio 2026 November 2025 Update
• Pipe dreams to pipeline realities: an Aspire Pipelines story | Aspire Blog
• Introducing the VS Code Insiders Podcast
• Progress on TypeScript 7 – December 2025 – TypeScript
• Profiler Agent – Delegate the analysis, not the performance – Visual Studio Blog
• The “Golden Triangle” of Agentic Development with Microsoft Agent Framework: AG-UI, DevUI & OpenTelemetry Deep Dive | Semantic Kernel

Videos

Link to blog post: jvaneyck.wordpress.com/2025/12/04/f…Showcase video: youtu.be/_AxsTQDxSbc?… #fsharp #FsAdvent

— Jo Van Eyck (@jovaneyck.bsky.social) 2025-12-04T16:32:41.580Z

• I built fsi-mcp and now all my LLM’s think in F# code – Jo Van Eyck
• Cancellation Tokens with Stephen Toub
• 🎄 Advent of code 2025 in F# – day 02
• 🎄 Advent of code 2025 in F# – day 03
• 🎄 Advent of code 2025 in F# – day 04
• 🎄 Advent of code 2025 in F# – day 05
• 🎄 Advent of code 2025 in F# – day 06
• ASP.NET Community Standup – .NET Conf 2025 release roundup
• .NET AI Community Standup – Build Cross-Platform .NET Apps with Uno Platform & AI!
• .NET MAUI Community Standup – .NET 10 Announcements Roundup

Blogs & FsAdvent

• The Oxpecker 2 – The Oxpecker 2
• Domain Modeling Made Denumerable – Steve Goguen
• Building ‘Ask AI’ – Building ‘Ask AI’
• Language Server Protocol in F# – Sam Smucny
• Parallelising Heterogeneous Async Calls – Nick
• fsi-mcp: injecting AI coding agents into my F# REPL workflow – Jo Van Eyck

Let the party begin!medium.com/@lanayx/the-…#fsharp #FsAdvent #oxpecker

— Vladimir Shchur (@lanayx.bsky.social) 2025-12-01T01:34:02.283Z

F# vNext

• Nested field update syntax for records – field disambiguator · Issue #1456
• Deprecate non-zero-based Array2Ds, fixing trimmability · Issue #1454

Highlighted projects

• sgoguen/DenseCheck: A .NET Library for Systematically Generating Test Cases for Your Domain Model
• ssmucny/FsharpLspExample -Language Server Protocol in F#
• totallymoney/FsCDK: AWS Cloud Development Kit (AWS CDK) For F#
• dbrattli/Feliz.ViewEngine: Feliz DSL and engine for HTML generation and server side rendering (SSR)

New Releases

• Oxpecker 2.0.0
• Feliz.ViewEngine 1.0.3
• DenseCheck 0.1.0
• FSharp.Data.GraphQL.ProjectTemplates 3.0.0
• FSharp.Data.GraphQL.Server 3.0.0
• Farmer 1.9.26
• FsiX.Cli 0.1.1
• fantomas 7.0.5
• FSharp.ReactiveWpf 0.0.8
• linq2db.FSharp 6.0.0
• FSharp.Azure.Quantum 1.2.5
• Mingine.Physics 1.2.0
• Numerics.NET.FSharp 10.1.0
• Hedgehog 1.1.0
• Hedgehog.Xunit.v3 1.1.0
• FSharp.Idioms 1.5.4
• Str 0.21.0
• Fumble 2.0.1
• Fabulous.AST 1.8.0
• Fable.Electron 39.2.4
• SwaggerProvider 3.0.0-beta01

ReSharper and Rider 2025.3 release party is incoming! 😃 📅 December 9, Tue, 4pm UTC🗣️ Our .NET Advocates and @auduchinok.bsky.social🎁 Lots of new features!🤔 Bring all your questions!#dotnet #devtools #ai #csharp #fsharp #ama

— JetBrains Rider (@jetbrains-rider.bsky.social) 2025-12-03T16:38:53.5694242Z

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

• Gazelle (A Fast Engine for Structural Engineering) is written in F#
• .NET Day on Agentic Modernization Coming Soon – .NET Blog
• Visual Studio – Built for the Speed of Modern Development – Visual Studio Blog
• Announcing ASP.NET Core OData 10.0.0 Preview 1 – OData
• Announcing OData Model Builder 3.0.0 Preview 1 Release – OData

Fable 4 and Fable 5, both got a new release to make them work with .NET 10 🎉 #fsharp #fablecompiler

— Maxime (@mangelmaxime.bsky.social) 2025-11-25T22:19:29.580Z

Videos

• TinySelf 6.1 – History and foundations
• TinySelf 6.2 – Using the Self programming system
• TinySelf 6.3 – Working with mutable data in F#
• TinySelf 6.4 – Code structure and step-by-step guide
• A Better Alternative to TypeScript? Meet Fable! – YouTube
• Why I’m Moving my Blog from F# to C#

Blogs

• TUnit — Why I Spent 2 Years Building a New .NET Testing Framework | by Tom Longhurst
• F# Advent Calendar in English 2025 – Sergey Tihon

F# vNext

• Deprecate non-zero-based Array2Ds, fixing trimmability · Issue #1454
• byref and inref for loops · Issue #1453

Highlighted projects

• Feather – Feather is a lightweight namespace for generic F# tools and libraries — utilities I build “on wings of F#”
• thinkbeforecoding/fulmin: A server and client library for Gemini protocole in F#. – Codeberg.org

Non periodic reminder that there's an unofficial F# discord where some members of the community hang outdiscord.gg/fsharp-19669…#programming #languages #dotnet #fsharp #developers

— Angel Munoz (@tunaxor.me) 2025-11-30T04:29:44.122Z

New Releases

• Ecng.Compilation.FSharp 1.0.115
• FSharp.ReactiveWpf 0.0.5
• Oxpecker 2.0.0
• Oxpecker.OpenApi 2.0.0
• Oxpecker.Htmx 2.0.0
• Oxpecker.ViewEngine 2.0.0
• FSharp.Azure.Quantum 1.2.1
• WoofWare.Myriad.Plugins 9.1.4
• WoofWare.FSharpAnalyzers 0.2.9
• Hedgehog 1.0.0
• Hedgehog.Xunit.v3 1.0.0
• Akka.FSharp 1.5.56
• Jade.Core 4.3.0
• Jade.Marten 4.3.0
• Falco.Datastar 1.2.0
• Fable.Electron 39.2.4
• FsiX.Cli 0.1.0
• slint 0.0.1
• FsCDK 0.1.0
• XParsec 0.2.4
• Feliz 3.0.0-rc.14
• Fable 5.0.0-alpha.17

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

• Introducing F# 10 – .NET Blog
• Introducing C# 14 – .NET Blog
• Introducing Major New Agentic Capabilities for GitHub Copilot in JetBrains and Eclipse – Microsoft for Java Developers
• Introducing the Visual Studio Code Private Marketplace: Your Team’s Secure, Curated Extension Hub 🎉
• Develop Faster with VS Code for the Web – Azure Guide | All things Azure
• Azure DocumentDB is Now Generally Available – Azure Cosmos DB Blog
• Reinventing how .NET Builds and Ships (Again) – .NET Blog
• Supercharge Your Test Coverage with GitHub Copilot Testing for .NET – .NET Blog
• A step-by-step guide to modernizing .NET applications with GitHub Copilot agent mode – .NET Blog
• Unlocking the full power of Copilot code review: Master your instructions files – The GitHub Blog
• Migrating from Microsoft Learn to aspire.dev | Aspire Blog

Only 4 slots left in the main timeline #fsharp #FsAdent

— Sergey Tihon 🦔🦀 (@sergeytihon.com) 2025-11-20T07:00:51.556Z

Videos

• F# 10 – Amplifying FSharp
• TinyProlog 5.1 – How logic programming works
• TinyProlog 5.2 – Structure, unification, resolution
• TinyProlog 5.3 – F# tricks and step-by-step guide
• A Better Alternative to TypeScript? Meet Fable! – YouTube
• .NET Data Community Standup – EF 10 release celebration 🎉
• TUIs Are Back (Although They Never Left): Creating Modern CLI Apps in .NET.
• State of the .NET Foundation and .NET Open Source
• .NET AI Community Standup – Ignite Highlights + the Custom Avatar Deep Dive

Blogs

• F# 10 Brings Performance Improvements – InfoQ
• What’s New for C# 14 and F# 10 in .NET 10 — Visual Studio Magazine
• The Three Read Models of Event Sourcing (Benchmarked in F#) | by Tony Lucca | Nov, 2025 | Medium

F# vNext

• [Poll] Consider changing the default of fsharp_multiline_bracket_style · Issue #3200 · fsprojects/fantomas
• byref and inref for loops · Issue #1453
• Propose new method invocation syntax: obj.Method.[|args|] and obj.Method.{|namedArgs|} · Issue #1452
• Support `UnsafeAccessorAttribute` · Issue #1451

Introducing F# 10 #fsharp devblogs.microsoft.com/dotnet/intro…

— Jon Sagara (@jonsagara.com) 2025-11-17T18:14:31.057Z

Highlighted projects

• thinkbeforecoding/fulmin: A server and client library for Gemini protocole in F#. – Codeberg.org
• evgTSV/NRayUI: Library for creating UI based on Raylib binding
• AndrewIOM/bristlecone: An F# library for mechanistic modelling of ecological time series data
• starfederation/datastar-dotnet: Official Datastar Dotnet SDK.
• hedgehogqa/fsharp-hedgehog-experimental: Hedgehog with batteries included: Auto-generators, extra combinators, and more.
• kullbom/dbflow: DbFlow is a library that helps with schema oriented database tasks
• AngelMunoz/Kipo: F# + MonoGame
• mavnn/VisualInk: Writing visual novels using Ink from Inkle.
• jkone27/FsharpWebApi: fsharp web api example

New Releases

• Giraffe.OpenApi 0.0.3
• Jade.Marten 4.1.0
• Hedgehog.Experimental 0.10.0
• fulmin.server 0.1.1
• fulmin.client 0.1.1
• JDeck 1.0
• NRayUI 0.0.1
• FSharp.SystemCommandLine 2.0.0
• DbFlow 0.6.0
• TableAPI 1.0.4.1
• StarFederation.Datastar 1.1.2
• ProteomIQon.AddDeducedPeptides 0.0.3
• Partas.GitNet 1.1.2
• FSharpLint.Core 0.26.8
• fslint 0.0.1
• Bristlecone 3.0.0-beta1
• Feliz 3.0.0-rc.12
• Fable 5.0.0-alpha.15

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

• What’s new in F# 10 – F# Guide – .NET | Microsoft Learn
• What’s new in C# 14 | Microsoft Learn
• Announcing .NET 10 – .NET Blog
• What’s New in Rider
• OpenAPI.NET: The Biggest Update Ever – OpenAPI at Microsoft
• Aspire 13 – Aspireify anything | Aspire Blog
• Visual Studio 2026 is here: faster, smarter, and a hit with early adopters – Visual Studio Blog
• A first look at the all‑new UX in Visual Studio 2026 – Visual Studio Blog
• How Copilot Studio uses .NET and WebAssembly for performance and innovation – .NET Blog
• Introducing Copilot auto model selection (preview) – Visual Studio Blog
• Azure MCP Server Now Built-In with Visual Studio 2026: A New Era for Agentic Workflows – Visual Studio Blog
• Roadmap for AI in Visual Studio (November) – Visual Studio Blog

F# Advent Calendar in English 2025 #fsharp #FsAdvent sergeytihon.com/2025/11/03/f…

— Sergey Tihon 🦔🦀 (@sergeytihon.com) 2025-11-03T21:26:49.016Z

.NET Conf 2025

• Matthew Watt Smatterings of F# – YouTube
• Welcome to .NET 10 & Visual Studio 2026! – YouTube
• What’s New in C# 14 – YouTube
• What’s New in ASP.NET Core – YouTube
• Performance Improvements in .NET 10 – YouTube
• What’s New in NuGet – YouTube
• What’s New in Containers for .NET 10 – YouTube
• Build better web apps with Blazor in .NET 10 – YouTube

Videos

• Functional Programming in F#: Fad or Fabulous? — Ken Bonny
• On .NET Live | Building Real-World AI Agents with Agent Framework
• .NET MAUI Community Standup – A Journey to 10 Years of Grial

Hey #fsharp! Ionide 7.29.0 / FsAutocomplete 0.81.0 is out and brings F# 10 and .NET 10 support! Give it a try and report issues when you find them!

— Jimmy Byrd (@theangrybyrd.bsky.social) 2025-11-13T15:21:27.108Z

Blogs

• MLIR Testing with Teeth – Houston Haynes
• Introducing Conclave – Houston Haynes
• F# Domain Model with Event Sourcing vs C# with Entity Framework | by Tony Lucca
• Easier reflection with [UnsafeAccessorType] in .NET 10 – Andrew Lock
• Duende Software – Identity and Access Management for .NET | Duende

F# vNext

• [Poll] Consider changing the default of fsharp_multiline_bracket_style · Issue #3200
• Allow defining covariant/contravariant type parameters for use in other .NET languages · Issue #1450

Dear #fsharp, we're asking again about a possible Fantomas default change: github.com/fsprojects/f…With 500+ downloads a day and only ~130 votes, we simply don’t have enough data yet. Absolute numbers matter before making such a decision.

— Florian Verdonck (@nojaf.com) 2025-11-13T09:08:46.676Z

Highlighted projects

• afxres/binary: Serialization library for C# and F#.
• DCPRevere/jade – F# Event Sourcing Library
• cmeeren/BatchIt: Call batched functions as normal function
• ninjarobot/FSharp.Text.Docker: Build dockerfiles and run docker commands from F#
• j-alexander/FSharp.Data.JsonPath: JsonPath for F# Data JsonValue
• CSBiology/DynamicObj: F# library supporting Dynamic Objects including inheritance in functional style
• G-Research/ShapeSifter: Type-safe datatype-generic programming for F#
• G-Research/HeterogeneousCollections: Type-safe heterogeneous collections for F#
• ionide/Fornax: Scriptable static site generator using type safe F# DSL to define page templates.
• mavnn/VisualInk: Writing visual novels using Ink from Inkle.
• Freymaurer/Fable.Multiverse: A template to get up and running as fast as possible with Fable and publishing to multiple languages.

New Releases

• Paket 10.0.0-alpha011
• Aardvark.Paket 10.0.0
• Giraffe 8.2.0
• FSharp.SystemCommandLine 2.0.0
• Felicity 0.24.4
• DbFlow 0.6.0
• ReactiveElmish 1.5.0
• ReactiveElmish.Avalonia 1.5.0
• fsdocs-tool 21.0.0
• FSharp.Formatting 21.0.0
• Numerics.NET.FSharp 10.0.0
• Mikodev.Binary.FSharp 5.10.0
• FSharp.Text.Docker 1.0.17
• FSharp.Data.JsonPath 1.1.3
• Farse 0.6.0
• BatchIt 1.2.1
• FDocument 0.1.0
• HeterogeneousCollections 1.1.2
• FsUnit.Light.NUnit 1.1.0
• DynamicObj 7.1.0
• ShapeSifter 1.1.19
• Pulsar.Client 3.13.0
• altcover 9.0.102
• Fornax.Core 0.16.0
• FSharpLint.Core 0.26.6
• Ionide.Analyzers 0.14.10
• FSharp.Compiler.Service 43.10.100
• Equinox.Templates 7.0.0

🌈 After 2 years of serious side-project hustle, we’ve built a limited batch of 100 PXL Clocks – premium programmable clock for developers and design lovers.Use code "fsharp" for a 50€ discount and bring light into your workspace.👉 pxlclock.com#fsharp #pxlclock #csharp #pixelart

— SchlenkR (@schlenkr.bsky.social) 2025-11-08T11:40:40.549Z

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 Conf 2025 – November 11 ‐ 13 (.NET 10 & VS 2026)
• Join us at .NET Conf: Dive into the future of development with Visual Studio 2026 – Visual Studio Blog
• Introducing Custom Agents for .NET Developers: C# Expert & WinForms Expert – .NET Blog
• 💫 Welcome to Aspire: Your stack, streamlined | Aspire Blog
• Visual Studio 2022 17.14 October Update
• Announcing Azure MCP Server 1.0.0 Stable Release – A New Era for Agentic Workflows – Azure SDK Blog

Videos

• Demystifying the Enigma Machine – a Functional Journey – Isaac Abraham – NDC Copenhagen 2025 – YouTube
• .NET Liverpool Lightning Talks 2025 – YouTube
• On .NET Live | Building agentic systems with local-first SLMs

Blogs

• Announcing Elmish Land 1.1 Preview | Elmish Land
• An F# MCP Client Example – Kevin Logan
• Scala vs F# – Alexandru Nedelcu
• Coding games with a story – Michael Newton
• Achieving Safety In a Universally Contested Future – Houston Haynes

Highlighted projects

• CSBiology/DynamicObj: F# library supporting Dynamic Objects including inheritance in functional style
• nfdi4plants/Swate: Excel Add-In for annotation of experimental data and computational workflows.
• informedica/GenPRES: Enable Safe and Efficient medication prescription, preparation and administration

New Releases

• Farmer 1.9.25
• Oxpecker 1.5.0
• FsUnit.Light 1.1.0
• fake-cli 6.1.4
• FSharpPlus 1.8.0
• Akka.FSharp 1.5.55
• FSharp.Idioms 1.5.3
• Fsharp.wpf 0.3.0
• DynamicObj 7.1.0
• Swate.Components 1.0.2
• ARCtrl 3.0.0-beta.11
• Feliz 3.0.0-rc.3

Just published a new version of FsUnit.Light package with new functions for testing exceptions in your taskswww.nuget.org/packages?q=F…#fsharp

— Vladimir Shchur (@lanayx.bsky.social) 2025-11-02T00:26:06.571Z

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

• Announcing Sponsorship on NuGet.org – .NET Blog
• Upgrading to Microsoft Agent Framework in Your .NET AI Chat App – .NET Blog
• Introducing Planning in Visual Studio (Public Preview) – Visual Studio Blog
• Expanding Model Choice in VS Code with Bring Your Own Key
• Integration Testing with Testcontainers – ISE Developer Blog
• Exciting new capabilities and enhancements for M365 Developer Program – October 2025 – Microsoft 365 Developer Blog

Announcing Sponsorship on NuGet[dot]orgis.gd/QYDXvi #dotnet #devcommunity #nuget #packagemanagers #sponsorship

— Alvin Ashcraft (@alvinashcraft.com) 2025-10-24T17:01:49.087Z

Videos

• NYC Functional Programming Videos – YouTube
• TinyHM 4.1 – How type inference in ML works – Tomas Petricek
• TinyHM 4.2 – Type systems and constraint solving – Tomas Petricek
• TinyHM 4.3 – Peano numbers and step by step guide – Tomas Petricek
• On .NET Live | Countdown to .NET Conf 2025
• ASP.NET Community Standup – The MCP authorization flow
• .NET AI Community Standup – Microsoft Agent Framework: Workflows & Migration Overview

In the next lab from my Tiny Systems course, you learn how type inference in ML-like languages works and write your own Hindley-Milner inference algorithm!🎞️ Watch the videos: http://www.youtube.com/watch?v=FUFQ…⌨️ Get the #fsharp code: github.com/tpetricek/ti…

— Tomas Petricek (@tomasp.net) 2025-10-23T19:58:41.426Z

Blogs

• Count distinct items with the CVM algorithm · Mathias Brandewinder blog

Highlighted projects

• fcolavecchia/fp-course-public: Make F# your first programming language
• ingted/Akka.WebSocket: Bind Akka.net and Suave WebSocket
• AngelMunoz/Kps: F# and MonoGame Project Structure
• ForNeVeR/Fabricator: The sharpest infrastructure automation tool.

New Releases

• FSharp.Idioms 1.5.1
• FSharp.Data.Npgsql5 3.0.2
• FAkka.WebSocket 1.0.3
• FsMath 0.0.2
• Akka.FSharp 1.5.54
• runfs 1.0.8
• ShapeSifter 1.1.17
• WoofWare.Myriad.Plugins 9.0.4
• G-Research.FSharp.Analyzers 0.19.0
• WoofWare.FSharpAnalyzers 0.2.1
• Feliz 3.0.0-rc.3
• Giraffe 8.1.0-alpha-001
• FSharp.Stats 1.0.0-preview.1
• Vitest 1.0.0-rc.2

I guess I forgot to mention that I added a bit of enemy behaviorLooks like cooldowns are not actually working, I need to check on that also, looks like dead entities still process their last command instead of just stay still when they die#fsharp #dotnet #gamedev #monogame

— Angel Munoz (@tunaxor.me) 2025-10-24T20:09:41.672Z

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

• Announcing .NET 10 Release Candidate 2 – .NET Blog
• Announcing the .NET Security Group – .NET Blog
• .NET and .NET Framework October 2025 servicing releases updates – .NET Blog
• Azure DevOps local MCP Server is generally available – Azure DevOps Blog
• PowerToys 0.95 is here: new Light Switch utility, faster Command Palette, and Peek with Spacebar – Windows Command Line

Write your own tiny programming system(s)! with Tomas Petricek

• TinyBASIC 3.1 – Commodore 64 BASIC and emulators
• TinyBASIC 3.2 – What you need to know about F#
• TinyBASIC 3.3 – Interpreter and step-by-step guide
• TinyML 2.1 – What you need to know about F#
• TinyML 2.2 – Language features and theory
• TinyML 2.3 – Interpreter and step-by-step guide
• TinySystems 1.1 – Why such a strange course topic?
• TinySystems 1.2 – Tiny systems as a methodology
• TinySystems 1.3 – Programming languages and systems
• TinySystems 1.4 – A taste of the F# language

Videos

• Func Prog Podcast Episode 12 – Almir Mesic
• Houston Haynes – Firefly – an F# compiler goes native to CPU, GPU and beyond
• ASP.NET Community Standup – Level up eShop with Blazor in .NET 10
• .NET Data Community Standup – Jeremy Miller shares his view on migrations and Marten
• On .NET Live | Infrastructure as Code with Pulumi

Blogs

• Guidance for .NET systems development – Tuomas Hietanen
• Using local LLMs from F# – Tuomas Hietanen
• ModelContextProtocol with FSharp (MCP with F#) – Tuomas Hietanen
• The SPEC Stack: A Proposal – Houston Haynes
• Victor: A Tool for Managing the SPEC Stack – Houston Haynes

Our Victor CLI tool is a play on words for the idea that Hugo templates should be fair game from bringing into the #fsharp framework. speakez.tech/blog/victor-…

— SpeakEZ.tech (@speakeztech.bsky.social) 2025-10-17T13:37:25.012Z

F# vNext

• Algebraic Effects · Issue #1449 · fsharp/fslang-suggestions

Highlighted projects

• Thorium/FunStripe.Sample: A complete, production-ready sample application and integration guide for the FunStripe library based on the existing Stripe payment processing patterns.
• Thorium/fabulousMauiTutorial: Android and iOS mobile application using .NET MAUI with Fabulous abstraction layer
• Thorium/WebsitePlayground: This is a nice sample-web-stack.
• speakeztech/CloudflareFS: Toolkit for building modern Cloudflare Solutions with F# and Fable Compiler
• alexzzzs/SharpParser.Core: A beginner-friendly, event-driven F# parsing library for language design and implementation.
• LiteracyFanatic/kensaku: Quick and easy search for Japanese kanji, radicals, and words

New Releases

• Farmer 1.9.23
• SwaggerProvider 2.3.2
• SharpParser.Core 1.3.0
• Akka.FSharp 1.5.54
• HeterogeneousCollections 1.0.14
• Prime 11.1.5
• WoofWare.Myriad.Plugins 9.0.3
• WoofWare.Expect 0.8.4
• Equinox.MessageDb 4.1.0
• FCQRS.Model 4.0.0
• FSharp.Idioms 1.4.38
• XParsec 0.2.3
• SharpVG 0.0.20
• Thoth.Json.Newtonsoft 0.3.3
• Thoth.Json.System.Text.Json 0.2.2
• Feliz.Bulma 4.1.0
• Feliz.Konva 0.0.5
• Fable.Jester4 0.34.0
• Fable.FastCheck4 0.34.0
• FS.FluentUI.Charts 1.0.0-beta02
• Kensaku.Core 0.1.0-preview.1
• Kensaku.Schema 0.1.0-preview.1
• FSharp.Core 10.0.100-rc2.25502.107
• FSharp.Compiler.Service 43.10.100-rc2.25502.107

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

• Preparing for the .NET 10 GC (DATAS) – .NET Blog
• Developer and AI Code Reviewer: Reviewing AI-Generated Code in .NET – .NET Blog
• September 2025 (version 1.105)
• Visual Studio Dev/Test Benefit Explained – Visual Studio Blog
• Developer and AI Code Reviewer: Reviewing AI-Generated Code in .NET – .NET Blog

It's not too late to join the #JetbrainsDotnetDays2025 and come and find out why functional programming in #fsharp is either a passing fad or absolutely fabulous!blog.jetbrains.com/dotnet/2025/…Many thanks to @jetbrains.com for organising this!

— Ken Bonny (@kenbonny.net) 2025-10-09T09:08:20.299Z

Videos

• .NET Days Online 2025, Day 1: Aspire, Clean Architecture, C# Nullability, Messaging, Uno, Blazor TDD
• .NET Days Online 2025, Day 2: Event-Driven Systems & GenAI with Aspire, F#, dotMemory, and More.
• ASP.NET Community Standup – Razor Reloaded
• .NET AI Community Standup – Getting Started with the Microsoft Agent Framework – YouTube
• On .NET Live | Simplifying API Design with the REPR Pattern and FastEndpoints – YouTube

Blogs

• Study notes: Softmax function · Mathias Brandewinder blog
• Tips for Unit Testing Fable Apps using .NET | Jordan Marr

Blog post: Tips for unit testing #fsharp Fable apps using .NET:jordanmarr.github.io/fsharp/unit-…

— Jordan Marr (@jordanmarr.bsky.social) 2025-10-05T19:37:16.866Z

F# vNext

• `MatchFailure`/`MatchSkip` patterns · Issue #1448
• System.Text.Json : Consider supporting F# discriminated unions · Issue #55744 · dotnet/runtime

Highlighted projects

• alexzzzs/SharpParser.Core: A beginner-friendly, event-driven F# parsing library for language design and implementation.
• LiteracyFanatic/kensaku: Quick and easy search for Japanese kanji, radicals, and words
• reallukee/confole: 🎨 Abbellisci la tua app console F# in modo funzionale
• ChrisPritchard/Xelmish: XNA + Elmish – 2D game development framework with F#
• WyattTechnology/WAkka: F# interface for Akka.NET
• speakeztech/fs-fileshare: A Cloudflare-based file sharing solution built with F#, Fable and deployed into Cloudflare
• speakeztech/CloudflareFS: Toolkit for building modern Cloudflare Solutions with F# and Fable Compiler

New Releases

• ResizeArrayT 0.25.0
• Str 0.20.0
• Dicts 0.5.0
• ArrayT 0.24.0
• Fesh 0.28.1
• Farmer 1.9.22
• Akka.FSharp 1.5.53
• SharpParser.Core 1.2.0
• FarNet.FSharpFar 5.1.5
• FSharp.Idioms 1.4.36
• Jade.Marten 2.0.1
• Reallukee.Confole 1.1.0
• Farse 0.5.2
• xelmish 1.0.0.1
• fsharp-gamecore 1.0.0.1
• astar-search 1.0.3
• WAkka 1.5.4
• SharpVG 0.0.20
• TypeEquality 0.4.2
• Partas.Solid 2.1.3
• DbFlow 0.5.1
• FsHttp 15.0.3
• Kensaku.DataSources 0.1.0-preview.2
• Feliz 3.0.0-rc.2
• Feliz.Template 5.0.0-rc.3
• Swate.Components 1.0.0-rc.8

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

• Introducing Microsoft Agent Framework (Preview): Making AI Agents Simple for Every Developer – .NET Blog
• Grok 4 is now available in Microsoft Azure AI Foundry | Microsoft Azure Blog
• Roadmap for AI in Visual Studio (October) – Visual Studio Blog
• The $150 Secret Hiding in Plain Sight – Visual Studio Blog
• Visual Studio September Update – profiler agent, app modernization, and more – Visual Studio Blog
• TypeScript 7 native preview in Visual Studio 2026 – Microsoft for Developers

Videos

• Houston Haynes – Firefly – an F# compiler goes native to CPU, GPU and beyond – YouTube
• Does F# need file-based apps – Amplifying FSharp
• ASP.NET Community Standup – Vibe coding a C# MCP server
• .NET MAUI Community Standup – Live from Prague with the .NET MAUI Team

Blogs

• Unexpected Fusion – Houston Haynes

F# Language Suggestions

• Request for Delegate Generic Parameter Erasure for Span<T> Operations · Issue #1447
• Allow the use of colon in all custom operators · Issue #1446

Highlighted projects

• speakeztech/CloudflareFS: Toolkit for building modern Cloudflare Solutions with F# and Fable Compiler
• G-Research/ShapeSifter: Type-safe datatype-generic programming for F
• WyattTechnology/WAkka: F# interface for Akka.NET
• DCPRevere/jade: F# Event Sourcing Library
• cmeeren/Felicity: Boilerplate-free, idiomatic JSON:API for your beautiful, idiomatic F# domain model. Optimized for developer happiness.

New Releases

• FsToolkit.ErrorHandling 5.1.0
• SqlBulkTools.FSharp 1.1.0
• FsHttp 15.0.3
• Felicity 0.24.3
• Fesh 0.28.1
• Akka.FSharp 1.5.51
• ShapeSifter 1.1.16
• Partas.AnimeJs 0.0.8
• Prime 11.1.4
• FarNet.FSharpFar 5.1.4
• WAkka 1.5.4
• WoofWare.FSharpAnalyzers 0.1.3
• WoofWare.PrattParser 0.2.5
• WriteBetterTests.FsCheckSpy 1.0.0
• Felicity 0.24.3
• Terminal.Gui 2.0.0-develop.4573
• Feliz.Template 5.0.0-rc.1
• Vitest 1.0.0-rc.1
• Feliz 3.0.0-rc.1

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!