Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Which programming languages are most token-efficient? – Martin Alderson
• How to Build Android Widgets with .NET MAUI – .NET Blog
• How We Synchronize .NET’s Virtual Monorepo – .NET Blog
• .NET and .NET Framework January 2026 servicing releases updates – .NET Blog
• Copilot Studio Extension for Visual Studio Code Is Now Generally Available – Microsoft 365 Developer Blog
• Copilot Memories – Visual Studio Blog
• Announcing Agent Academy: Operative | Power Platform Developer Blog
• Aspire for JavaScript developers | Aspire Blog
• December 2025 (VS Code version 1.108)

#fsharp mentioned finally in a #dotnet @fireship.bsky.social video 🦔💚 youtu.be/MFsYaRnrcPQ?… yessss

— jkone27 (@jkone27.bsky.social) 2026-01-16T17:44:57.783Z

Videos

• .NET in 100 Seconds
• Blazor Community Standup – Planning the future of Blazor in .NET 11
• .NET AI Community Standup Topic: Let’s talk about the new .NET AI Stack
• On .NET Live | Orleans Deep Dive: Routing, Placement & Balancing

Blogs

• Inferring Memory Lifetimes | SpeakEZ Technologies
• Arity On The Side of Caution | SpeakEZ Technologies
• Dimensional Type Safety Across Execution Models | SpeakEZ Technologies
• Gaining Closure | SpeakEZ Technologies

We're introducing a new approach to memory management in Fidelity: the compiler tracks data flow, determines where values escape their scope, and infers lifetimes automatically. Explicit arenas when you need them, inference when you don't. #fsharp speakez.tech/blog/inferri…

— SpeakEZ.tech (@speakeztech.bsky.social) 2026-01-14T22:24:11.157Z

Highlighted projects

• nietras/Sep: World’s Fastest .NET CSV Parser. Modern, minimal, fast, zero allocation, reading and writing of separated values (`csv`, `tsv` etc.). Cross-platform, trimmable and AOT/NativeAOT compatible.
• lamg/migrate: Declarative migrations for SQLite databases
• tonyx/Sharpino: A little F# event-sourcing library.
• JordanMarr/FSharp.DurableExtensions: Extensions for Azure Durable Functions for strongly typed activity calls.
• rdipardo/Fornax.Seo: A SEO meta tag generator for Fornax
• JordanMarr/Agent.NET: A composable AI agent framework for .NET.
• fs-fio/FSharp.FIO: 🪻 A Type-Safe, Purely Functional Effect System for Asynchronous and Concurrent F#
• fsprojects/TickSpec: Lean .NET BDD framework with powerful F# integration

New Releases

• FSharpPlus 1.9.1
• Oxpecker.OpenApi 2.1.1
• XParsec 0.3.1
• FSharp.DurableExtensions 2.0.1
• Hedgehog 2.0.3
• Hedgehog.NUnit 1.0.0
• CCFSharpUtils 0.1.8
• Sharpino.Templates 1.2.0
• Fornax.Seo 1.5.0
• FSharp.Compiler.Service 43.10.102
• FSharp.Core 10.0.102
• FsLambda.Templates 1.0.14
• FSharp.ReactiveWpf 0.0.9
• FAkka.WebSocket 1.557.10.101002
• TickSpec.Unofficial 0.5.0
• Hedgehog.Stateful 1.0.0-beta1
• ARCtrl 3.0.0-beta.16
• AgentNet 1.0.0-alpha.2.1
• FSharp.FIO 0.0.38-alpha

The data above is from this article martinalderson.com/posts/which-…

— Bozhidar Batsov (a.k.a. Bug) (@batsov.net) 2026-01-16T09:32:55.394Z

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

• Mibo: A Functional Game Framework for F#
• Generative AI: The Future of Consumer Technology – .NET Blog
• XAML Studio is now Open Sourced – #ifdef Windows
• EF Core MongoDB Queryable Encryption and Vector Search Explained – .NET Blog
• Scaling AI Agents with Aspire: The Missing Isolation Layer for Parallel Development | Aspire Blog
• Semantic Reranking in Azure SQL and SQL Server Explained – Azure SQL Devs’ Corner
• Welcome to 2026, A Growth Year for All of Us – Visual Studio Blog

#fsharp #webdevelopment #systemsprogramming speakez.tech/blog/wren-st…

— SpeakEZ.tech (@speakeztech.bsky.social) 2026-01-06T18:07:03.522Z

Videos

• ASP.NET Community Standup: Server & APIs roadmap discussion for .NET 11
• .NET MAUI Community Standup – Run .NET MAUI on Linux with Avalonia

Blogs

• FSharp.Native: From IL to NTU | SpeakEZ Technologies
• Absorbing Alloy | SpeakEZ Technologies
• The WREN Stack | SpeakEZ Technologies
• C# – F# Interop (2026 edition) – planetgeek.ch
• Event Sourcing in F#: From Cross-Stream Invariants to “Refreshable Details” | by Tony Lucca

C# and F# Interop (2026 edition)How to easily start with F# in your existing C# codebase.www.planetgeek.ch/2026/01/06/c… #dotnet #csharp #fsharp #Interop

— Urs Enzler (@ursenzler.bsky.social) 2026-01-06T13:00:53.173Z

Highlighted projects

• AngelMunoz/Mibo: A micro-framework built on top of Monogame for F# Devs
• fslaborg/flips: Fsharp LInear Programming System
• destructurama/fsharp: Native support for destructuring F# types when logging to Serilog.
• JordanMarr/Agent.NET: A composable AI agent framework for .NET.
• fs-fio/fio: 🪻 A Type-Safe, Purely Functional Effect System for Asynchronous and Concurrent F#

New Releases

• Mibo.Templates 1.0.1
• Hedgehog 2.0.2
• Akka.Persistence.FSharp 1.5.58
• Swate.Components 1.0.7
• Oxpecker.OpenApi 2.1.0
• Flips 2.4.12
• FSharp.Idioms 1.5.5
• Hedgehog 2.0.2
• Destructurama.FSharp 4.0.0
• QualIQon 1.0.0
• AgentNet 1.0.0-alpha.1
• FSharp.FIO 0.0.34-alpha

I know when you think about GameDev you think about C++ C# or even rust!Welp, I'd like you to consider giving F# a chanceMibo aims to become micro framework on top MonoGame.It'll give you some ergonomics, and pathways for you to write your games in seamless F# 👇#dotnet #gamedev #fsharp #monogame

— Angel Munoz (@tunaxor.me) 2026-01-09T21:40:19.528Z

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

• Top .NET Videos & Live Streams of 2025 – .NET Blog
• Top .NET Blog Posts of 2025 – .NET Blog
• Java at Microsoft: 2025 Year in Review – Microsoft for Java Developers

And before the year ends, last update!The map editor is working, playtest mode enabled, full 3D rendering (no more 2.5D).Perf rounds pending, and better QoL features pending but I'm so happy I've arrived this far #fsharp #monogame #dotnet #gamedev #BuildingInPublic

— Angel Munoz (@tunaxor.me) 2026-01-01T04:47:09.135Z

Videos

• C# Source Generators – Why and How
• Neovim + C# Updates: fixing roslyn.nvim when rzls is no more
• Hybrid Caching in .NET – Jody Donetti – NDC Copenhagen 2025

Blogs

• Weaving design, part 2 | F# for fun and profit – Scott Wlaschin
• F# on Metal Revisited | SpeakEZ Technologie

Part 2 of my "Designing Weaving Software" series is up. This time using generic and parameterized implementations to reduce duplication. #fsharpfsharpforfunandprofit.com/posts/design…

— Scott Wlaschin (@scottwlaschin.bsky.social) 2025-12-29T19:37:11.031Z

F# vNext

• feat: Add Fsharp support by jcs090218 · Pull Request #1290 · emacs-tree-sitter/tree-sitter-langs

Highlighted projects

• AngelMunoz/Kipo: An RPG-like Game prototype written in F# and Monogame
• AngelMunoz/Hox: Async HTML rendering and a simplistic but extensible DSL based on css selectors.
• AngelMunoz/MVUish.Avalonia: lightweight, performant Model-View-Update (MVU) library for Avalonia

New Releases

• How 3.0.0
• Flips 2.4.12
• XParsec 0.3.0
• Farse 0.7.1
• WebSharper.SlickGrid 10.0.0.656
• EluciusFTW.SpectreCoff 0.54.2
• Flan 0.1.0
• FCQRS.Model 5.1.0
• Falco.Datastar 1.3.0
• TakinProfit.Vitest 3.2.0
• TakinProfit.Solid 1.10.0
• SwaggerProvider 3.0.0-beta04
• YAMLicious 1.0.0-alpha.2
• Hedgehog.Stateful 0.7.0-beta1

— MonoGame (@monogame.net) 2025-12-30T14:31:59.143Z

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

• F# Advent Calendar in English 2025 – Sergey Tihon’s Blog
• How AI fixed my procrastination – Visual Studio Blog

Videos

• Electrifying Norway with F# and DDD – Almir Mesic | Lambda Days 2025
• Going functional and immutable: Refactoring solution (…) from C# to F# -Daniel Ondus |LambdaDays25
• AI coding patterns (that actually work) – Jo Van Eyck

"F# Advent Calendar in English 2025" is complete and all slots are filled 🎉 #fsharp #fsadvent sergeytihon.com/2025/11/03/f…

— Sergey Tihon 🦔🦀 (@sergeytihon.com) 2025-12-27T09:13:55.112Z

Blogs & FsAdvent

• Designing weaving software – Scott Wlaschin
• “Safe Clean Architecture” book – Romain Deneau
• Introduction to Fable.Python – Dag Brattli
• Create a Cloudflare Worker in .NET?! – Jordan Marr
• Complying with the Law with F# and Event Sourcing – P. León
• Introducing WebSharper source code generators – Adam Granicz
• What F# Knows About Functors and What Comes Next – Paweł Stadnicki
• Voice Bot: Gen AI meets old-school Symbolic AI – Faisal Waris
• No, Clojure: your REPL is not new – or best – DEV Community
• Standing Art: F# Metaprogramming Features in the Firefly Compiler | SpeakEZ Technologies™

F# vNext

• Add `syncTask` builder (similar to `backgroundTask`) · Issue #1459
• Add for! (for-bang) keyword to computation expressions · Issue #1458

Highlighted projects

• Krzysztof-Cieslak/callisto – Proof of concept of the framework for building desktop applications with Fable and webview.
• AngelMunoz/Kipo: An RPG-like Game prototype written in F# and Monogame
• EluciusFTW/SpectreCoff: A thin, opinionated wrapper around Spectre.Console in F#.
• fwaris/RTOpenAI: A library to build mobile applications in F# / MAUI, which utilizes the OpenAI realtime API via the WebRTC protocol.
• fs-fio/fio: 🪻 A Type-Safe, Purely Functional Effect System for Asynchronous and Concurrent F#
• fslaborg/flips: Fsharp LInear Programming System
• OllieDay/Daffer: Functional wrapper for Dapper

New Releases

• SqlHydra v3.2.0
• WebSharper 10.0
• FAkka.Fsi.Contracts 10.0.101.1
• FAkka.FSharp.Json 10.0.101.41
• JsonSchemaProvider 0.1.2
• EluciusFTW.SpectreCoff 0.54.2
• Flips 2.4.11
• Giraffe.OpenApi 0.1.0
• Daffer 1.0.4
• SwaggerProvider 3.0.0-beta03
• Fable 5.0.0-alpha.22
• FSharp.FIO 0.0.33-alpha
• Hedgehog.Stateful 0.6.0-beta1

OK, the code is here – github.com/Krzysztof-Ci…I've cooked. Do not enjoy it. Cheers.#fsharp

— Krzysztof Cieslak (@kcieslak.io) 2025-12-22T21:38:20.586Z

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 10.0
• Aspire 13.1 – Our holiday gift to you | Aspire Blog
• Microsoft.Testing.Platform Now Fully Supported in Azure DevOps – .NET Blog
• How to Build iOS Widgets with .NET MAUI – .NET Blog
• Build declarative agents for Microsoft 365 Copilot with MCP – Microsoft 365 Developer Blog
• What’s new in Microsoft Foundry | October and November 2025 | Microsoft Foundry Blog
• Introducing the Copilot Studio + Azure AI Search Solution – ISE Developer Blog

We have decided to put the Fidelity Framework elements in their own GitHub org. Everything is still in fairly early days. We don't expect many community contributions at this point but we wanted to be sure that folks will see the work progressing in the open. github.com/FidelityFram… #fsharp

— SpeakEZ.tech (@speakeztech.bsky.social) 2025-12-19T23:50:07.930Z

Videos

• ASP.NET Community Standup – ASP.NET Core planning kickoff for .NET 11
• On .NET Live | Showcasing an educational platform for quantum computing with custom Copilot
• HTMX and ASP.NET Core – I don’t know how to React – Maarten Balliauw – Azure Dev Summit 2025

Blogs & FsAdvent

• Taming the Brown Field with F#: Interactive Refactoring for Mature Codebases – halcwb
• F# and PowerShell >🎄? – jkone27
• Exploring MonoGame with F# – Angel Munoz
• Parsing and Lexing in F# – Owais
• F#, Microsoft Agent Framework, MCP and Bitcoin – F#, Microsoft Agent Framework, MCP and Bitcoin
• A Brief Introduction to Quantum Computing for F# Developers – Tuomas Hietanen

Highlighted projects

• ingted/FsPickler10 – .net 10 version of FsFickler with removedFormatter-based serialization.
• Thorium/FSharp.Azure.Quantum: Make Quantum computing available for enterprise .NET developers (and AI) via Azure.Quantum
• vbfox/MasterOfFoo: An F# library to allow using printf style strings in more places.
• CSBiology/YAMLicious – small YAML reader/writer inspired by Thoth.Json syntax!
• dburriss/fsagent: A small DSL and library for generating custom agent files for popular agent tools
• nightroman/FarNet.FSharp.Unquote: This package provides F# Unquote for FarNet.FSharpFar

New Releases

• FS.FluentUI 3.0.0
• FSharp.Azure.Quantum 1.3.3
• BlackFox.MasterOfFoo 2.1.1
• FS.FluentUI 3.0.0
• Hedgehog 2.0.1
• SqlHydra.Cli 3.1.1
• FS.FluentUI.Charts 1.0.2
• Fesh 0.31.0
• FsiX.Cli 0.1.2
• Feliz.Tailwind 4.0.2
• FsAgent 0.1.0
• FCQRS.Model 5.0.2
• FarNet.FSharp.Unquote 3.1.0
• linq2db.FSharp 6.1.0
• FSharp.AWS.DynamoDB 0.13.0-beta
• Fabulous.AST 2.0.0-pre05
• Fable 5.0.0-alpha.21
• fantomas 8.0.0-alpha-002

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 10 Networking Improvements – .NET Blog
• Microsoft Learn MCP Server Elevates Development – .NET Blog
• Implementing Cross-Platform In-App Billing in .NET MAUI Applications – .NET Blog
• Making Windows Terminal awesome with GitHub Copilot CLI – Microsoft for Developers
• Join us for AI Dev Days – December 10-11 – Microsoft for Developers
• Aspire Integrations, Batteries Included | Aspire Blog
• Streamlining your Git workflow with Visual Studio 2026 – Visual Studio Blog

🚀 Excited to announce SharpIDE – A Modern, Cross-Platform IDE for .NET!I'm thrilled to share my latest open-source project, just in time for .NET 10: SharpIDE, a brand new IDE for .NET, built with .NET and Godot! 🎉🔗 Check it out on GitHub: github.com/MattParkerDe……

— Matt Parker (@mattparker.dev) 2025-11-11T23:24:13.521Z

Videos

• Type Inference: Write Less Code, Catch More Bugs.
• Excel: The World’s Most Successful Functional Programming Platform by Houston Haynes
• 🎄 Advent of code 2025 in F# – day 07
• 🎄 Advent of code 2025 in F# – day 08
• TinyExcel 7.1 – Technical dimensions of spreadsheets
• TinyExcel 7.2 – Architecture and F# events
• TinyExcel 7.3 – Code structure and step-by-step guide
• ASP.NET Community Standup – Build agentic UI with AG-UI and Blazor
• On .NET Live – On .NET Live | Patterns in Messaging Systems
• .NET Day on Agentic Modernization

Let's build a Programming Language – together!The goal? Combine the developer experience of Python with the safety of TypeScript.In Episode 0: Syntax + Type Inference📺 http://www.youtube.com/watch?v=fSRT…#TypeInference #TypeScript #CSharp #FSharp #Rust #Haskell

— SchlenkR (@schlenkr.bsky.social) 2025-12-13T08:58:15.904Z

Blogs & FsAdvent

• Implementing my own bookmark manager – Jozsef Uri
• F# in Production: What I Know After Four Years – Ben Copeland
• Comprehensive Guide to SRTP Gymnastics – Millennium
• I like my F# code type annotation-free – Urs Enzler
• Adding Goal Seek to Quipu (and helping Santa with it!) – Mathias Brandewinder
• Tagless Final in F# – John Azariah
  • Tagless Final in F# – Part 1: Froggy Tree House
  • Tagless Final in F# – Part 2: Maps, Branches, and Choices
  • Tagless Final in F# – Part 3: Goals, Threats, and Getting Stuck
  • Tagless Final in F# – Part 3: Goals, Threats, and Getting Stuck
  • Tagless Final in F# – Part 5: Verifying the Elevator
  • Tagless Final in F# – Part 6: The Power of Tagless-Final: Code as Model
• Making of A Programming Language – Making of A Programming Language
• Baker: A Key Ingredient to Firefly | SpeakEZ Technologies
• Show Notes: The World’s Most Successful FP Platform | SpeakEZ Technologies

F# vNext

• mutable on any binding · Issue #1457 · fsharp/fslang-suggestions
• [WIP]: MethodImplOption.Async support by TheAngryByrd · Pull Request #19065 · dotnet/fsharp

Highlighted projects

• speakeztech/Firefly: A compiler that brings F#’s elegance and precision to systems programming through MLIR and various backends
• cariandrum22/Xanthos: Type-safe F# wrapper for the JRA-VAN JV-Link COM API, providing functional access to Japanese horse racing data.
• mrtz-j/Saturn.OpenTelemetry: A OpenTelemetry Extension for Saturn

New Releases

• Akka.FSharp 1.5.57
• FSharp.Azure.Quantum 1.3.2
• FCQRS.Model 5.0.1
• Xanthos 0.1.0
• CloudflareFS.Management 0.1.0
• CloudflareFS.Runtime 0.1.0
• Feliz.Template 5.0.0
• Hedgehog 2.0.0
• Hedgehog.Xunit.v3 2.0.0
• FSharp.Core 10.0.101
• FSharp.Compiler.Service 43.10.101
• Fantomas.FCS 8.0.0-alpha-001
• Paket 10.0.0-alpha011

Hm… Serena #fsharp

— Sergey Tihon 🦔🦀 (@sergeytihon.com) 2025-12-08T22:13:13.971Z

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 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.

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