Racket

(sixteenth RacketCon) tickets on sale now at www.eventbrite.com/e/racketcon-...

Today in 1928, #ACMTuringAward recipient Peter Naur was born. Peter Naur received the 2005 ACM Turing Award for fundamental contributions to programming language design and the definition of Algol 60, to compiler design, and to the art and practice of computer programming. 🔗 buff.ly/ViP3d8W #OTD

# UK Racket meet-up (London) Tuesday 20 October 2026 7:30pm at The City Pride 🍕 28 Farringdon Ln, London EC1R 3AU Join us for discussion and pizza. All welcome.😁 From November we will be doing short talks and demos! racket.discourse.group/t/uk-racket-... luma.com/em6sejij

(As many will already know) John McCarthy happily admitted that LISP's functional heart was inspired by early FORTRAN, and in fact LISP began as an attempt to extend FORTRAN dl.acm.org/doi/10.1145/... . FORTRAN is LISP 0! :)

Happy 70th birthday 🎂 FORTRAN fortran-lang.org/news/2026/09...

I just sponsored racket. Go sponsor your open source dependencies! github.com/sponsors/rac... @racket-lang.org #rhombus #racket #scheme #lisp

The Racket community has an active discourse forum and discord server. We would love it if you joined us😁 Join at [Discourse](racket.discourse.group/invites/VxkB...) and [Discord](discord.gg/6Zq8sH5)

https://github.com/dannypsnl/raco-mod 今天突發奇想，是不是可以解析catalog，用Go的MVS概念實現racket專案的package management呢？可以

# UK Racket meet-up (London) Tuesday 20 October 2026 7:30pm at The City Pride 🍕 28 Farringdon Ln, London EC1R 3AU Join us for discussion and pizza. All welcome.😁 From November we will be doing short talks and demos! racket.discourse.group/t/uk-racket-... luma.com/em6sejij

Pleased to announce shplait/liquid, a liquid-typed version of shplait, the language of my book PLAI. This version adds liquid-typing, a form of refinement types. It's primarily meant to be a small language for pedagogic purposes to induce people to try grown-up ones later. ↵

Missed RacketCon this year? The videos are now available at con.racket-lang.org or youtube.com/playlist?lis... Discuss on the Racket [Discourse](racket.discourse.group/invites/VxkB...) and [Discord](discord.gg/6Zq8sH5) Please consider sponsoring us racket-lang.org/rplf.html

FFI2 at RacketCon

Day two begins

RacketCon day 2 kicks off in a little over 30 minutes with Sam Phillips presenting 'Uke: Immutable Dataframes for Racket'. Stream is free at con.racket-lang.org

spicy hot take early in the morning

"We know what we mean." -- you know who I mean.

this is what Herbie does btw

racketcon 2026 thread!

trying to spot which racketcon speakers wrote their presentations in the Slideshow DSL is a fun game I see you culpepper

yooooooo this gonna be good

when we do type theory in standard inference rule notation like the left image, we often end up translating that into monadic typing systems like the image on the right but there are a number of aspects of the monadic Haskell version that are not as straight forward as wed like

Fred Fu is presenting ‘Type Inference With Logical Types For Rhombus’ con.racket-lang.org

Sixteenth RacketCon is underway with Pat Hanrahan delivering the keynote 'On Notation' Slide 'Math is Ambiguous and Inconsistent' con.racket-lang.org

RacketCon listen party & Racket meet-up Sat, 3 Oct 2026 How to join in at racket.discourse.group/t/racketcon-...

How are you going to see RacketCon 2026? ✅In-person at Oakstop ✅ Online at con.racket-lang.org ✅ Watch the videos at youtube.com/@racketlang You can still get tickets to attend in-person or watch the livestream at con.racket-lang.org

RacketCon is Saturday con.racket-lang.org

(sixteenth RacketCon) is almost here! We have an amazing program and a rockstar keynote speaker. See the program con.racket-lang.org and get your ticket at www.eventbrite.com/e/racketcon-... Only nine days to go, I can already taste the excitement.

Can’t attend in-person? The live stream is publicly available, but buying a 'Remote Participant' ticket helps pay for the live stream and ensure its availability for the entire community. * Remote Participant $10 www.eventbrite.com/e/racketcon-... con.racket-lang.org #lisp #scheme #Racket

What if you're right and they're wrong? Poster from #fargo created with Racket and Rhombus gist.github.com/racket-racco... for the Rhombus picture competition racket.discourse.group/t/summer-rho... Enter now! Learn some Racket and Rhombus racket-lang.org rhombus-lang.org

Discounted early registration ends in 14 hours. Get your tickets now! Registration link at con.racket-lang.org

The Racket community is honoured to confirm the keynote speaker for the (sixteenth RacketCon) will be Pat Hanrahan! RacketCon details at con.racket-lang.org Tickets at www.eventbrite.com/e/racketcon-... (early bird prices end soon)

Only a few day left for cheaper early tickets for the (sixteenth RacketCon) * Professional $100.00 * Student $25.00 (ends 13th September) Get your tickets now at www.eventbrite.com/e/racketcon-...

Bay Area Racket Meetup - TODAY September 5th, 3pm at Noisebridge, SF. luma.com/6y4sbfln racket.discourse.group/t/bay-area-r... #lisp #scheme #Racket

Racket meet-up: Saturday, 5 September 2026 at 18:00 UTC EVERYONE WELCOME 😁 Details and discussion racket.discourse.group/t/racket-mee... luma.com/scx2kbei #lisp #scheme #Racket

UK Racket meet-up (London) Tuesday 1 September 2026 7:30pm at The City Pride 🍕 28 Farringdon Ln, London EC1R 3AU Join us for discussion and pizza. All welcome.😁 luma.com/fkkvrs3y λλλ #racket #lisp #scheme

Bay Area Racket Meetup - September 5th, 3pm Social event for people interested in the Racket programming language, other Lisps, functional programming, language-oriented programming and related topics. At Noisebridge, a hackerspace in SF. luma.com/6y4sbfln #lisp #scheme #Racket

the grey parts represent OCaml's pervasive use of impure mutable state

Also in OCaml!!!

So, significant white space?

Also in Pyret!

The white space in both the Racket and Rhombus logos are a stylised lower-case lambda(λ).

oh wow

Tonight! UK Racket meet-up (London) Tuesday 18 August 2026 7:30pm at The City Pride 🍕 28 Farringdon Ln, London EC1R 3AU Join us for discussion and pizza. All welcome.😁

We are pleased to announce Rhombus 1.1 is now available from rhombus-lang.org Rhombus is easy to use and uniquely customizable. See blog.racket-lang.org/2026/08/rhom... for the release announcement and highlights.

Racket - the Language-Oriented Programming Language - version 9.3 is now available from download.racket-lang.org See blog.racket-lang.org/2026/08/rack... for the release announcement and highlights.

# UK Racket meet-up (London) Tuesday 18 August 2026 7:30pm at The City Pride 🍕 28 Farringdon Ln, London EC1R 3AU Join us for discussion and pizza. All welcome.😁 #racket #lisp #rhombus racket.discourse.group/t/uk-racket-...