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A new Go API for JSON
Go 1.27 introduces new encoding/json/v2 and encoding/json/jsontext packages.
New
The latest blog posts to take off on Hacker News. 5,634 posts.
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C++26 Disapproved
On October 23, 2026, the unthinkable happened. It was supposed to be a mere formality: C++26 was up for a vote by the ISO National Bodi...
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Four Months of Zig
It has been about four months since I returned to Zig after being absent for a few years. In this time, I have written some software in Zig and reengaged with the community, online and in person. I decided to share some of that experience, including what I have liked about Zig so far and what I haven't. I'll include…
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Iterating Backwards in C
This is shorter than some of my other posts, but I keep seeing people doing this wrong. It's even worse now in the LLM era.
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Pharo 14
Pharo is a pure object-oriented programming language and a powerful environment focused on simplicity and immediate feedback.
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OpenLDK: Bringing the Java World into Common Lisp
Java classes become CLOS classes, seven JVM languages share one Lisp expression, and a saved Spring Boot application launches in 84 milliseconds.
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Small Programs and Languages
My Implementing a Forth article got some great feedback, particularly around the subject of tiny Forth implementations. (And it was an excuse to list some of the tiniest Forths I’ve seen.)
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How close can pure functional programming get to C?
In Why Lean is Faster Than Rust , the author shares an impressive result: a DEFLATE compression library written in Lean 4 , a functional programming language and proof assistant, outperforming an equivalent Rust package that crates.io says has been downloaded over a billion times. From the article:
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Crystal 1.22
We are announcing a new Crystal release 1.22.0 with several new features and bug fixes.
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2026 is an exciting year for the Rust compiler (and me)
Matyáš Racek's blog
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Tsrs: A Port of TypeScript to Rust
Cloudflare is collaborating on tsrs, a Rust port of TypeScript that is up to 8x faster and uses 70% less memory.
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Java sealed classes and exhaustive pattern matching
Java 17 introduced sealed classes, which allow you to explicitly list the allowed sub-types of an interface or base class. For example, here’s a toy example using a sealed interface and records (in…
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A new way to think about borrow checking (in reverse)
Have you ever had a weird idea, and then it worked, but you can't really believe it?
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Parser Combinators
Better than regex!
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I built a programming language that LLMs can't use
I built KillSwitch, an esoteric language designed to confound LLMs and coding agents, and benchmarked the major models against it.
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JDK 28
This release will be the Reference Implementation of version 28 of the Java SE Platform, as specified by JSR 403 in the Java Community Process.
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C++26: The New Debugging Header
If you’ve ever needed to hit a breakpoint programmatically in C++, you’ve probably written something like this: 1 2 3 4 5 6 7 8 9 #if defined(_MSC_VER) __debugbreak(); #elif defined(__clang__) __builtin_debugtrap(); #elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) __asm__ volatile("int3"); #else…
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The Folders Programming Language
Created 2015 | Updated 2026 | One of Forty-Four Esolangs , by the creator of Rivulet and Velato
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Celebrating 70 Years of Fortran
Fortran : High-performance parallel programming language
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C++26 Contracts: Introduction to Preconditions and Postconditions
In the article about Standard Library hardening, we looked at checks for invalid Standard Library container access and other broken preconditions. I mentioned that those requirements are expressed in terms of “contracts”. But what about our code? In this post, we’ll explore contracts from C++26. We’ll start with a…
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Better HTTP/1 connection reuse in Go 1.27
Go 1.27 includes a change to the HTTP client that can make programs sending many sequential HTTP/1 requests significantly faster.
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Yet another way to invoke functions in JavaScript without parentheses
i found yet another way to invoke arbitrary functions in javascript without using parentheses
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Your C is not standard C
this is an incomplete list of some incompatibilities between c as it's written in the standard and c as it exists in the real world for people who use gcc/clang + glibc/musl.
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Type-safe HTML templating in Zig
I’ve done a lot of web development over the years. I started around the year 2000, just after PHP 3.0 was released and started taking over the web world. I’ve used all kinds of approaches for generating HTML: raw PHP, string concatenation in Python, Smarty templates in PHP, Template Toolkit in Perl, and Jinja/Django…
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Valen's Memory Safety: A New Kind of Borrow Checking
You all know me, I love exploring new memory safety approaches and blending them together in weird ways.
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C for Rust programmers
Interesting and unexpected details for Rust programmers learning the C programming language.
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Gleam doesn't compile to Erlang source anymore
News post: Gleam v1.19.0 released!
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Why Common Lisp is now the best programming language
just a diary