In light of the TYPES forum discussion on AI-generated PL papers, reviewers please forward your best finds to
#SLOPL and #WHOOPSLA.
Acceptance rate: 100% 🤑

prompt: new idea, POPL paper, no mistakes!!

Thinking about replacing every instance of NaN in Hazel with 🫓

Polymarket 🙈

my student Seong-Heon talking about one of our new projects at NYU!

(We’re at NJPLS today, come say hi)

hazel development, september 2020 - september 2025

one day, my apartment will look like this

Only at #icfpsplash25 😎

the ML Family Workshop begins in just a few hours! Come find us in Peony NE at 10:30, right next to the dining hall

We have a great program with 9 talks!

If you are curious about compilers, type systems, module systems, formal proofs, and typed domain modeling, then this is the place for you

A wild paren has appeared! #icfpsplash25

Who called it abstract algebra and not discreet math 🤫

OPLSS students in formation reading "λ x"

Achievement Unlocked - #OPLSS25 ✅

Hazel lore

Day 4 of the Oregon Programming Languages Summer School. Morale is running low. 20h of lectures and we haven't seen a programming language yet. Many fear that we won't find one before the rations run out. If we don't make it back, tell my cat I love her

Kicking off #OPLSS25 with some good ol’ Logical Foundations

Summer State of Mind ☀️

#SummerSolstice

ML Family Workshop 2025 - Higher-order, Typed, Inferred, Strict: ML Family Workshop 2025 - ICFP/SPLASH 2025 ML is a large family of programming languages that includes Standard ML, OCaml, F#, CakeML, SML#, Manticore, MetaOCaml, JoCaml, Alice ML, Dependent ML, Flow Caml, Reason ML, Flix, MaPLe, and many othe...

We've extended the deadline for the ML Family Workshop -- please help spread the word!

New deadline: July 3

If you (or someone you know) is planning to attend ICFP/SPLASH, we encourage you to consider submitting!

conf.researchr.org/home/icfp-sp...

When the
the pointer is sus

calculating primes using OxCaml comprehensions

🐍🐫 magic

Loving the comprehensions feature from the new #OxCaml update. Can't wait for it to be available upstream soon™️

I'm pleased to announce OxCaml!

OxCaml is Jane Street's branch of OCaml. We've given it a new name and a snazzy logo, and done a bunch of work to make it easy for people to try.

These are not merely amateur functors. These are pro functors.

vibecoding referenced in graduate PL class. ✔️

Conditional breakpoints almost let you write a unit test from the debugger

Congratulations 🥳🎉

Cyrus Omar receives 1938E Award He has been recognized for innovative teaching, mentorship, and dedication to undergraduate research.

I'm honored to receive the 1938E Award, which honors "outstanding young faculty members who demonstrate excellence in teaching, mentoring, and contributing to the educational growth of the College". Working with budding PL nerds is a highlight of my job!

cse.engin.umich.edu/stories/cyru...

3Blue1Bron (beta)

LeGrove: www.3blue1bron.com/share/cb1d21...

[POPL'25] Kick the Can - WITS (25th Jan) YouTube video by ACM SIGPLAN

My student Thomas Porter will be presenting our collaborative, in-progress work on "Incremental Bidirectional Typing with Order Maintenance" at the WITS workshop at POPL today at 3pm MT!

Stream / recording will be here, check it out:
www.youtube.com/live/HT8nLo6...

#POPL ’d till we DROPL’d 🫡

[POPL'25] Peek A Boo - POPL I (23rd Jan) YouTube video by ACM SIGPLAN

I'll be presenting our #POPL paper "Grove: A Bidirectionally Typed Collaborative Structure Editor Calculus" at 11:20am CT / 1:20pm ET!

The paper presents a foundational IR for collaborative coding where every edit action *commutes*. Grove resolves pernicious problems with code relocation conflicts.