✨Fable v5 ✨ Such great news today ❤️
In addition to JS/TS, Rust, and Dart, the Python target has been significantly improved, and there is also the exciting new BEAM target added to the list. Write once run everywhere 🥰 #fsharp #fablecompiler
If you maintain open source projects, these two tools have been game-changers for me recently:
- EasyBuild.ShipIt by @mangelmaxime.bsky.social
- Repo Assist by @dsyme.bsky.social
- github.com/easybuild-or...
- github.com/githubnext/a...
#fsharp #csharp #dotnet
F# Weekly #16, 2026 - .NET 11 Preview 3 & SwaggerProvider 4.0 beta #fsharp sergeytihon.com/2026/04/19/f...
F# Weekly #15, 2026 - Akkling, FSharp.Data and RANSAC auto-tune #fsharp sergeytihon.com/2026/04/11/f...
F# Weekly #14, 2026 - Serde.FS Brings Compile-Time RPC to F# #fsharp sergeytihon.com/2026/04/05/f...
F# Weekly #13, 2026 - Deedle 4.0 is out! #fsharp sergeytihon.com/2026/03/29/f...
F# Weekly #12, 2026 - 11 years of Ionide 🥰 #fsharp sergeytihon.com/2026/03/22/f...
Next week I will present the new work on Fable Beam at Oslo F# Meetup 💫 #fsharp #fablecompiler
F# Weekly #11, 2026 - F# in .NET 11 Preview 2 #fsharp sergeytihon.com/2026/03/14/f...
I've started making some initial binding (FFI). Will definitively look more into how they did things in Gleam. github.com/fable-compil...
For List.collect you can also think of it is as flatMap, or mapMerge. In F# you can flatten/merge lists with List.concat
myList
|> List.map (fun n -> [n; n * 2]) // [[1;2]; [2;4]; [3;6]]
|> List.concat // [1; 2; 2; 4; 3; 6]
The start of a cross-platform Actor library for F# / Fable ✨ Works on .NET, Python, JS and ... BEAM. Single process except BEAM where you get multi-process and supervision. Same code runs everywhere 🤩 #fablecompiler #fsharp github.com/dbrattli/Fab...
F# Weekly #10, 2026 - Start Your Day With Code That’s Better
#fsharp sergeytihon.com/2026/03/08/f...
My morning -->
* A performance improvement
* A feature request analysis
* An engineering improvement
Daily improvements to the software you maintain, delivered to your repos with GitHub Agentic Workflows.
dsyme.net/2026/03/08/s...
Fable v5-rc.2 is out w/beam support 🥳✨#fsharp #fablecompiler
Finally received this book today 🥰 Fable.Python made me a Python expert. Looking forwards to the Fable.Beam journey ✨
Note that there is a bug with the new Beam target and fable-library is unfortunately missing from the bundle. This should be fixed in -rc2 when available. But it will be worth the wait. Fable Beam passes 2241 unit-tests and is surprisingly usable for being a new Fable target 🤩
A lot of the work with the Python target has been to improve Python interop, and also to produce Python code that type checks using static type checkers such as Pyright.
The wait is over! Fable 5 Release Candidate is officially here.
After a year of hard work from the community, we're bringing you:
✨ .NET 10 & F# 10 support
🐍 A massive Python update (now powered by a Rust core & PyPI!)
🌐 Cleaner JS/TS Pojo bindings
fable.io/blog/2026/20...
#fsharp #fablecompiler
F# Weekly #9, 2026 - Crunching the Technical Debt with Repo Assist #fsharp sergeytihon.com/2026/03/01/f...
Remember to complete your 2026 open source training. The training is mandatory for everyone who uses open source software gist.github.com/richhickey/1...
F# Weekly #8, 2026 - Boosting F# Libraries with Automated Agentic AI #fsharp sergeytihon.com/2026/02/22/f...
I need to double (and tripple) check this but it seems like Giraffe on Beam is faster than .NET. Is it too good to be true? 🙈 At least the Python perf looks to be true 😆 #fsharp #fablecompiler
Timeflies with F# on Fable Beam (Fable v5 teaser) #fsharp #fablecompiler #erlang
F# Weekly #7, 2026 - .NET 11 Preview 1 & Rider 2026.1 EAP 3 #fsharp sergeytihon.com/2026/02/14/f...
