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