# F# Weekly #26, 2026 — Fable REPL on BEAM & WebSharper 10.1

**URL:** <https://forums.fsharp.org/t/f-weekly-26-2026-fable-repl-on-beam-websharper-10-1/5148>\
**Category:** General\
**Tags:** news\
**Created:** [June 27, 2026, 7:27pm UTC](https://forums.fsharp.org/t/f-weekly-26-2026-fable-repl-on-beam-websharper-10-1/5148 "2026-06-27T19:27:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**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:** [June 27, 2026, 7:27pm UTC](https://forums.fsharp.org/t/f-weekly-26-2026-fable-repl-on-beam-websharper-10-1/5148/1 "2026-06-27T19:27:49Z")

</div>

Welcome to F# Weekly,

A roundup of F# content from this past week:

> **[Urs Enzler (@ursenzler.bsky.social)](https://bsky.app/profile/ursenzler.bsky.social/post/3mowxqmjrrb23)**
>
> In part 11 of my event sourcing series, I discuss consistency and why we don't use aggregates or dynamic consistency boundaries to solve it:
> 
> https://www.planetgeek.ch/2026/06/23/event-sourcing-aggregates-dynamic-consistency-boundaries-or-what/...

**Microsoft News**

- [AI-Powered MSBuild Investigation with the Microsoft Binlog MCP Server - .NET Blog](https://devblogs.microsoft.com/dotnet/msbuild-binlog-mcp-server/)
- [Azure Functions MCP Extension: What's New at Build 2026 - Azure SDK Blog](https://devblogs.microsoft.com/azure-sdk/functions-mcp-updates-build-2026/)
- [Meet your agent harness and claw | Microsoft Agent Framework](https://devblogs.microsoft.com/agent-framework/meet-your-agent-harness-and-claw/)
- [Visual Studio Code 1.126](https://code.visualstudio.com/updates/v1_126)

**Videos**

- [Avalonia 12 - Set Up Your Dev Environment in 9 Minutes](https://www.youtube.com/watch?v=qtNbDOJwuF8)
- [ASP.NET Community Standup: Better AI for .NET developers with dotnet/skills](https://www.youtube.com/watch?v=MamP9YH8ZC0)
- [.NET Data Community Standup: Temporal tables and constraints in SQL Server and PostgreSQL 18](https://www.youtube.com/watch?v=BcbhBFm1MuU)
- [.NET AI Community Standup: Multi-Agent Apps with Aspire + MAF](https://www.youtube.com/watch?v=6fAFj_p4Sag)
- [On .NET Live - An In-Depth Introduction to Agentics](https://www.youtube.com/watch?v=LzHo8StEJrg)

**Blogs**

- [Dag Brattli: Fable REPL now compiles F# to Erlang (BEAM)](https://fable.io/repl/)
- [Urs Enzler: Event Sourcing — Aggregates, Dynamic Consistency Boundaries or What?](https://www.planetgeek.ch/2026/06/23/event-sourcing-aggregates-dynamic-consistency-boundaries-or-what/)
- [SpeakEZ.tech: Between a Rocq and a Hard Case](https://clef-lang.com/blog/between-a-rocq-and-a-hard-case/)
- [Tuomas Hietanen: FsLemming — Lemmings clone with F# MailboxProcessors](https://thorium.github.io/FsLemming/)
- [Between Rocq & A Hard Case – Clef Programming Language](https://clef-lang.com/blog/between-a-rocq-and-a-hard-case/)

> **[Dag Brattli (@dbrattli.bsky.social)](https://bsky.app/profile/dbrattli.bsky.social/post/3moiz24mczs25)**
>
> The Fable Repl has been updated to include BEAM, and now compiles F# code to Erlang 🥰 fable.io/repl/ #fsharp #fablecompiler
> https://fable.io/repl/#fsharp

**Highlighted projects**

- [MagnusOpera/FScript](https://github.com/MagnusOpera/FScript) — Functional language interpreter, F#/ML inspired, with LSP support
- [DataficationSDK/Verso](https://github.com/DataficationSDK/Verso) — Extensible interactive notebook platform for .NET; runs in VS Code and the browser
- [Thorium/FsLemming](https://github.com/Thorium/FsLemming) — Lemmings clone demonstrating F# message-passing MailboxProcessors
- [AngelMunoz/Migrondi](https://github.com/AngelMunoz/Migrondi) — Simple SQL migrations tool; 1.3.0 beta adds a GUI app and an MCP server

**New Releases**

- [Fable.Core 5.1.0](https://www.nuget.org/packages/Fable.Core)
- [Navs 1.0.0](https://x.com/angel_d_munoz/status/2070036499517571075)
- [NBomber 6.5.0](https://www.nuget.org/packages/NBomber)
- [WebSharper 10.1.6.676](https://www.nuget.org/packages/WebSharper)
- [G-Research.FSharp.Analyzers 0.23.0](https://www.nuget.org/packages/G-Research.FSharp.Analyzers)
- [FSharp.Analyzers.SDK 0.37.2](https://www.nuget.org/packages/FSharp.Analyzers.SDK)
- [Facil 3.0.0](https://www.nuget.org/packages/Facil)
- [Fable.Python 5.3.0](https://www.nuget.org/packages/Fable.Python)
- [Frank 7.2.1](https://www.nuget.org/packages/Frank)
- [Funogram.Telegram 10.1.0](https://www.nuget.org/packages/Funogram.Telegram)

> **[Tuomas Hietanen (@thoriumi.bsky.social)](https://bsky.app/profile/thoriumi.bsky.social/post/3momyg6242224)**
>
> F# Fable 5 + GitHub hosting! A few retro-spirit items:
> \- Combination counting, how I learned to calculate as a kid: thorium.github.io/Kasino/
> \- My 28-year-old 5-in-a-row ported: thorium.github.io/thomoku/
> \- Cave-rocket clone:...

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

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