# F# Weekly #19, 2025 - How F#py is your C#? **URL:** \ **Category:** General\ **Tags:** news\ **Created:** [May 10, 2025, 3:22pm UTC](https://forums.fsharp.org/t/f-weekly-19-2025-how-f-py-is-your-c/4532 "2025-05-10T15:22:23Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![sergey\_tihon](https://yyz2.discourse-cdn.com/flex030/user_avatar/forums.fsharp.org/sergey_tihon/32/25_2.png) [@sergey\_tihon](https://forums.fsharp.org/u/sergey_tihon)\ **Post date:** [May 10, 2025, 3:22pm UTC](https://forums.fsharp.org/t/f-weekly-19-2025-how-f-py-is-your-c/4532/1 "2025-05-10T15:22:23Z")
Welcome to F# Weekly, A roundup of F# content from this past week: **News** - [Why we built our startup in C# - .NET Blog](https://devblogs.microsoft.com/dotnet/why-we-built-our-startup-in-csharp/) - [C# 14 - Exploring extension members - .NET Blog](https://devblogs.microsoft.com/dotnet/csharp-exploring-extension-members/) - [A Developer's Guide to Build 2025 - Microsoft for Developers](https://devblogs.microsoft.com/blog/a-developers-guide-to-build-2025) - [Announcing the General Availability of Managed Identities as Federated Identity Credentials in your Entra apps | Microsoft Entra Identity Platform](https://devblogs.microsoft.com/identity/access-cloud-resources-across-tenants-without-secrets-ga/) - [Integration testing with Dapr and Testcontainers - ISE Developer Blog](https://devblogs.microsoft.com/ise/external-data-handling-learnings/) - [How Office Is Modernizing Their App Suite’s UI using Windows App SDK and React Native React Native](https://devblogs.microsoft.com/react-native/2025-05-09-office-modernize/) - [Announcing the updated Teams AI Library and MCP support](https://devblogs.microsoft.com/microsoft365dev/announcing-the-updated-teams-ai-library-and-mcp-support/) - [Fedora Linux is now an official WSL distro - Windows Command Line](https://devblogs.microsoft.com/commandline/fedora-linux-is-now-an-official-wsl-distro/) - [Nested App Authentication: Now available across Microsoft 365](https://devblogs.microsoft.com/microsoft365dev/nested-app-authentication-now-generally-available-across-microsoft-365/) > **[Sergey Tihon 🦔🦀 (@sergeytihon.com)](https://bsky.app/profile/sergeytihon.com/post/3lotaj5wli22y)** > > This C# looks so F#py ... #fsharp https://devblogs.microsoft.com/dotnet/why-we-built-our-startup-in-csharp/ **Videos** - [.NET AI Community Standup - What’s Next for .NET and AI at Build 2025](https://www.youtube.com/watch?v=Fe_7Od0HKqg&ab_channel=dotnet) - [On .NET Live - Building Real-Time Web Applications with Akka.NET](https://www.youtube.com/watch?v=UQ1xhv9_gAI&ab_channel=dotnet) - [ASP.NET Community Standup - Automated browser testing with ASP.NET Core in .NET 10](https://www.youtube.com/watch?v=URCHHJeixBM&ab_channel=dotnet) **Blogs** - [F# vs C#: Best for Startups and Scale-ups](https://danyl.hashnode.dev/why-f-outshines-c-for-startups-and-scale-ups) - [Algebraic Data Types - by Desert Thunder - Pattern Matched](https://patternmatched.substack.com/p/algebraic-data-types?r=327h32&utm_campaign=post&utm_medium=web&triedRedirect=true) - [Pulumi.FSharp.Extensions | Compositional IT](https://www.compositional-it.com/news-blog/pulumi-fsharp-extensions/) - [The Shifting Computational Landscape and Returning Primacy of Compilers](https://speakez.ai/blog/01-the-return-of-the-compiler/) - [Exploring the new AI chat template](https://andrewlock.net/exploring-the-new-ai-chat-template/) **Highlighted projects** - [simontreanor/FSharp.Finance.Personal: Personal finance functions written in F#](https://github.com/simontreanor/FSharp.Finance.Personal/) - [afxres/binary: Serialization library for C# and F#.](https://github.com/afxres/binary) - [DragonFrai/Ferrum: library for working with dynamic Error types.](https://github.com/DragonFrai/Ferrum) - [HughPH/Box2D-dotnet-bindings: Box2D 3.x Bindings for dotnet (C#, F#, VB, ...)](https://github.com/HughPH/Box2D-dotnet-bindings/) > **[Robert Byrne (@kapitar.bsky.social)](https://bsky.app/profile/kapitar.bsky.social/post/3loo6d5ial22e)** > > Active patterns make parsing so pleasant in #FSharp **New Releases** - [Ferrum 0.3.0](https://www.nuget.org/packages/Ferrum) - [Ferrum.Graphviz 0.3.0](https://www.nuget.org/packages/Ferrum.Graphviz) - [IcedTasks 0.11.8](https://www.nuget.org/packages/IcedTasks) - [Numerics.NET.FSharp 9.0.3](https://www.nuget.org/packages/Numerics.NET.FSharp) - [Hedgehog.Xunit 0.7.0](https://www.nuget.org/packages/Hedgehog.Xunit) - [SQLProvider 1.5.6](https://www.nuget.org/packages/SQLProvider) - [Mikodev.Binary.FSharp 5.8.1](https://www.nuget.org/packages/Mikodev.Binary.FSharp) - [Akka.FSharp 1.5.41](https://www.nuget.org/packages/Akka.FSharp) - [Akka.Persistence.FSharp 1.5.41](https://www.nuget.org/packages/Akka.Persistence.FSharp) - [Fable.Elmish.Debugger 4.2.1](https://www.nuget.org/packages/Fable.Elmish.Debugger) - [HughPH.Box2D 2025.5.10.755](https://www.nuget.org/packages/HughPH.Box2D) - [Ecng.Compilation.FSharp 1.0.52](https://www.nuget.org/packages/Ecng.Compilation.FSharp) > **[Maxime (@mangelmaxime.bsky.social)](https://bsky.app/profile/mangelmaxime.bsky.social/post/3lodv3ksbwc2c)** > > 🚀 Fable 5.0.0-alpha.13 is out! > > This release fixes several Python-related bugs and lays the groundwork for smoother integration with JavaScript front end frameworks. > > \#fsharp #fablecompiler 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](https://www.buymeacoffee.com/sergeytihon)! [![Buy Me A Coffee](https://cdn.buymeacoffee.com/buttons/v2/default-yellow.png)](https://www.buymeacoffee.com/sergeytihon)