F# Weekly #35, 2026 — Fabulous 10, .NET Conf 2026 Announced, and C# 15 Preview

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• F# Compiler Services / Browser WASM
• Fantomas 8.0.0-alpha-026 – 2026-08-29

Hey .NET Fans! It’s that time of year again!.NET Conf is back November 10-12, 2026.Spend three days learning from the people who build and use .NET, catching up with the community, and launching .NET 11.Learn more and save the date: msft.it/63328aPzWC#dotNETConf

— .NET (@dot.net) 2026-08-25T17:06:02.857Z

Microsoft News

• .NET Conf 2026 – Save the Date
• Explore new features available in C# 15 preview
• From dotnet run to Foundry Hosted Agent in 3 lines of C#
• How Uno Platform uses .NET, MCP, and AI to build high quality apps
• Try the new SqlClient and Retry connections natively – Azure SQL Dev Corner
• Agent Harness: Making your claw production-ready | Microsoft Agent Framework
• Visual Studio August Update — Work Smarter Across Models and Branches – Visual Studio Blog
• The Visual Studio Debugger Agentic Workflow Gets a Test-Driven Upgrade – Visual Studio Blog
• Unlocking the Power of AI for Every Developer in Visual Studio with Bring your Own Model – Visual Studio Blog
• PowerToys 0.101 is here: Window Hopper, Insider updates, and Command Palette compact mode – Windows Command Line

Videos

• GitHub Agentic Workflows Explained – Don Syme, GitHub Next
• .NET Data Community Standup: How to start contributing to Entity Framework Core
• .NET AI Community Standup: Routing & Failover for Microsoft.Extensions.AI
• Everything You Need to Know About the Latest in C# – YouTube
• Explore the Future of ASP.NET Core & Blazor in .NET 11 – YouTube
• Improving Performance in .NET Applications – YouTube
• Building Intelligent .NET Applications: From AI Features to Agentic System – YouTube
• Modernizing .NET Applications – YouTube
• Fast Focus: Using Copilot to Build Migration Tools – YouTube
• .NET Developer Productivity with AI – YouTube
• .NET MAUI in 2026 – How AI has Transformed App Development Forever – YouTube
• Modern WinForms Development: How AI is Reshaping Your Approach – YouTube

Highlighted Projects

• Neftedollar/FsLangMCP — MCP server giving AI coding agents (Claude, Cursor, Copilot) real FCS/FSAC compiler intelligence instead of grepping F# source.
• vykrum/Hywe — Computational spatial design environment for generating architectural spatial configurations from relational graphs, rules, and constraints (F#/WASM/WebGPU).
• mfakane/wasm-fcs — F# Compiler Services running in WASM — bringing FCS to the browser.
• Neftedollar/orleans-fsharp — Idiomatic F# for Microsoft Orleans: computation expressions for grains, streaming, event sourcing, 1700+ tests.
• TheFellow/fkyeah — F# pipeline engine for multi-stage AI/LLM workflows.
• tunaxor.me/Kimo — Kimo is a small 3D RPG prototype written in F#. It is inspired by Trickster Online: skills with cast times and cooldowns, status effects, gear, and enemies that patrol, remember you, and flee when hurt.

New Releases

• Fable 5.15.0
• SageFs 0.6.325
• FsLexYacc 11.4.1
• FsLexYacc.Runtime 11.4.1
• Akka.FSharp 1.5.71
• Ionide.Analyzers 0.17.0
• Fable.Compiler 5.14.1
• Fabulous 10.0.0
• Fabulous.MauiControls 10.0.0
• Fabulous.Avalonia 10.0.0
• Akka.Persistence.FSharp 1.5.71
• SqlHydra.Cli 4.1.0
• Oxpecker 2.1.1
• WoofWare.Myriad.Plugins 11.0.5
• FSharp.SystemCommandLine 2.2.0
• SharpVG 1.0.0
• ProcessKit 2.12.0

Rather than just keep talking about it, I'll just let you give it a look. This is the current RPG'ish prototype I've been working on.Source Code:tangled.org/tunaxor.me/K…#dotnet #fsharp #monogame #gamdev

— Angel Munoz (@tunaxor.me) 2026-08-23T06:54:53.711Z

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