F# Weekly #13, 2026 – Deedle 4.0 is out!

🎉 Deedle 4.0.1 is out! The F# data frame library just got a massive update – new packages, new operations, better stats, performance wins, and many long-standing bugs squashed. A huge amount of community-originated requests in one release. Full notes 👇github.com/fslaborg/Dee…#fsharp #dotnet

— F# Online (@fsharponline.bsky.social) 2026-03-22T22:33:53.697Z

In FSAC repo, I'm getting great PRs closing 7 years old issue… from AI.AI slope? It's polished PR, adding code fix and set of tests for it. I wish I was getting such "slope" from #fsharp community for all those years… github.com/ionide/FsAut…

— Krzysztof Cieslak (@kcieslak.io) 2026-03-24T16:52:51.661Z

Might not be a huge audience here, but I wanted to announce that. FSharp.Data.Npgsql is now part of fsprojects, thanks to @dsyme for the nudge. This should make maintenance easier.. It's a #typeprovider wrapper in #fsharp for #postgres that allows you to just point your code at a database and […]

— Darren (@dplattsf.sfba.social.ap.brid.gy) 2026-03-27T17:41:03.000Z