While we could all unite against Go instead…

does anyone know any other examples of using higher rank types for regions/lifetimes like with runST that aren't ST or bluefin? especially ones related to allocating something off-heap or similar (but anything really. doesn't even have to be in haskell)

Let's go

Du hast verdammt recht. Do not use it unless you know it can and will explode to your face.

"Haskell ecosystem activities report: September–November 2025" by Well-Typed www.well-typed.com/blog/2025/12... #Haskell

The new episode of the Haskell Interlude with Lennart Augustsson was done at @zurihac.bsky.social jointly with #TypeTheoryForAll. It is a deep dive into the evolution of Haskell and functional programming with one of its pioneers. haskell.foundation/podcast/74/

MicroHs v0.15.0.0 released! 🎉 discourse.haskell.org/t/microhs-v0... #Haskell

"The Subtle Footgun of TVar (Map _ _)" by Matt Parsons www.parsonsmatt.org/2025/12/17/t... #Haskell

"A different way to do concurrency — #Haskell 's STM monad" by Elisabeth Stenholm www.youtube.com/watch?v=d-NZ...

Go slander will stop as soon as the language will respect its users.

Just updated the dataframe SQL library to auto generate expression bindings from the table types. The read input surface is looking pretty great now: CSV, JSON lines, Parquet and now various SQL DBs. hackage.haskell.org/package/data...

The best example out there is the `validation-selective` package flora.pm/packages/@ha...

Me when the compiler (rightfully) starts spewing errors about my non-euclidian function signatures

You know it is! Welcome aboard. :)

🎉 Release 1.0.0 of ClickHaskell, the #Haskell implementation of ClickHouse DBMS Native protocol, has been published! See github.com/KovalevDima/... and clickhaskell.dev

"Easy Type-Level Flags In #Haskell" by Grégoire Locqueville glocq.github.io/en/blog/2025...

Girls just wanna have fun ✨

Foolproof method

🥸👍

Some #Haskell talks from #LambdaDays 2025 "Create your first Language Server in Haskell" by Arthur Jamet youtu.be/N33Q0cmnnVg @lambdadays.bsky.social

We have some bittersweet news: Lambda Days will take a break in 2026. But - we’re releasing something special 💛 🎥 All Lambda Days 2025 talk recordings are now public! 👉 youtube.com/playlist?lis...

Take the state of #haskell survey for 2025: www.surveymonkey.com/r/6M3Z6NV My first answer 🥲

Koreaboo #Haskell programmers should not forget to add GOCHUJANGLOG.md in the extra-doc-files section of their .cabal file. cabal.readthedocs.io/en/stable/ca...

Haskell community! We need everyone to take the state of Haskell survey.

The State of #Haskell 2025 survey is out! Please take ~10 minutes to fill this out and share it with friends/colleagues/coworkers, whether or not they are users of Haskell.

Street preacher at Devoxx?

Haskell, where the programmer, not just the whitespace, is significant.

As long as they don't evaluate their impure actions…

Welcome aboard!

Saint-Exupéry wrote “Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.” What would you like to see removed from #Haskell to help it achieve perfection?

QA tester at heart

🥸👍

in ghc you have green threads, and the rts has a scheduler to run them, this is well known. it's less well known that with cmm dark arts you can make a haskell thread observe/suspend/resume other threads, and diy your own userspace scheduler with your own scheduling policy

Layoutz – A tiny zero-dep lib for beautiful #Elm-style TUI's in #Haskell 🪶 flora.pm/packages/@ha... www.reddit.com/r/haskell/co... discourse.haskell.org/t/layoutz-0-...

And with DataHaskell and @mschav.bsky.social's work, #Haskell is becoming a wonderful language for #DataScience!

Perhaps you saw the post series "Python is not a great language for data science"... well, here's Haskell IS a Great Language for Data Science https://jcarroll.com.au/2025/12/05/haskell-is-a-great-language-for-data-science/ #haskell :haskell: #rstats :rstats:

Let's goooooo 🥳🥳🥳

Welcome aboard. :)

Custom Haskell RTS that plays the Wilhelm scream every time a partial function is evaluated

It is easier to do concurrency right in Haskell… That might resonate with polyamorous people!

This year, why not do the #AdventOfCode in #Haskell with your polycule?

Let's gooooo 🥳

Narrator voice: Yes they will. The hero will answer the call to adventure.

That might come helpful to others. ;-)

Time to shine ✨

It's that time of the year!

New post on the #Haskell blog: "Analyzing language extension semantics" from the Stability Working Group. blog.haskell.org/investigatin...

🥳🥳🥳

Sometimes coroutines and suspended computations are not worth it *that* much. Great movie though.

The 2020's have to be the decade of great tooling for #Haskell. More investment in Developer Experience, reliable foundations and predictable performance will see us gain a lot of street cred.