Read the source, not the changelog.

Browse by subject

Pick a language or a layer of the runtime.

• JavaScript27
• TypeScript21
• Python18
• Programming Languages18
• Java16
• PHP10
• Developer Tools9
• Computer Science6
• Memory Management6
• Algorithms6
• JVM5
• Software Engineering5
• GoLang4
• Concurrency4
• Rust4
• Systems Programming3
• C Language3
• OpenJDK2
• Git2
• Software Architecture2
• cPython1
• Compilers1

Dedicated feeds

The three angles most of this hub falls under.

Languages

MSVC's August Preview Clears 40 Bug Reports and Preps ARM64 for LUTI2

The August 2026 MSVC Build Tools Preview fixes 40 reported compiler bugs and adds real ARM64 codegen work, including Armv9.2 LUTI2 lookup-table support. It targets Visual Studio 2026 v14.52 and ships through both the Stable and Insiders channels.

14 Aug 2026 · 5 min read

• Minecraft Runs on One Thread Because Nobody Wrote It for Two 14 Aug
• Python 3.15: Lazy Imports, Frozendict, and a Faster JIT 10 Aug
• Twelve Years in the Making: JDK 28 Ships Value Classes Preview 7 Aug
• See all →

Runtimes & compilers

Minecraft Runs on One Thread Because Nobody Wrote It for Two

Every entity, every block update, every redstone pulse — one thread, twenty times a second, 50 milliseconds a pass. Folia's answer is to stop sharing the kitchen. Here is the tick budget and the ownership rules, read from the PaperMC source.

14 Aug 2026 · 21 min read

• Python 3.15: Lazy Imports, Frozendict, and a Faster JIT 10 Aug
• Twelve Years in the Making: JDK 28 Ships Value Classes Preview 7 Aug
• Inside TypeScript 7: What a Year-Long Rewrite in Go Actually Bought Developers 13 Jul
• See all →

Fundamentals

Oracle Free Tier ARM Cutoff: What to Do Before Aug 18

Oracle halved its Always Free ARM allocation to 2 OCPU/12GB, enforced Aug 18, 2026. Here's the exact numbers, what's still ambiguous, and how to resize in time.

10 Aug 2026 · 8 min read

• RSA in JavaScript Part 2: The JWT Is Where You'll Actually Meet It 30 Apr
• How Authentication Actually Works 25 Apr
• Your Minecraft Server Isn't Slow, It's Misconfigured 20 Apr
• See all →

Newest first.

Programming

MSVC's August Preview Clears 40 Bug Reports and Preps ARM64 for LUTI2

The August 2026 MSVC Build Tools Preview fixes 40 reported compiler bugs and adds real ARM64 codegen work, including Armv9.2 LUTI2 lookup-table support. It targets Visual Studio 2026 v14.52 and ships through both the Stable and Insiders channels.

Programming Featured

Minecraft Runs on One Thread Because Nobody Wrote It for Two

Every entity, every block update, every redstone pulse — one thread, twenty times a second, 50 milliseconds a pass. Folia's answer is to stop sharing the kitchen. Here is the tick budget and the ownership rules, read from the PaperMC source.

Programming

Python 3.15: Lazy Imports, Frozendict, and a Faster JIT

Python 3.15 release candidate: explicit lazy imports, the new frozendict and sentinel types, the Tachyon profiler, and real JIT benchmark numbers.

Programming

Twelve Years in the Making: JDK 28 Ships Value Classes Preview

A technical deep dive into the features shaping the next Java feature release, due March 2027 — including the twelve-year backstory behind its headline feature. JDK 28 is a non-LTS ("feature release") of the Java Platform, tracked as JSR 403 in the Java Community Process. It follows

Programming Featured

JDK 27 New Features Explained: What Actually Changes

JDK 27 ships nine JEPs, but only a few actually change your code today. What's default now, what's still preview, and what to do about each one now.

Programming

Python's frozendict Is Finally Happening — And It's More Important Than You Think

Python 3.15 ships a built-in frozendict — hashable, O(1) lookups, order-preserving, thread-safe by design. Here's the full technical picture: the 14-year history, how hashing works, what it unlocks for lru_cache and free-threaded Python, and every sharp edge you need to know before you use it.

Programming

r/programming Just Banned LLM Discussions. I Understand Why. I Still Disagree with it.

The largest programming community on Reddit banned all LLM content for April. The frustration behind the decision is real. The decision itself is a mistake. Here's the full picture: what the ban covers, why it happened, what the data says, and where I actually land on AI as a coding tool.

Programming

PEP 816: Python Finally Gets Serious About WebAssembly

CPython has had informal WebAssembly support since Python 3.11. PEP 816 changes that. Brett Cannon just locked down exactly which WASI and SDK versions each Python release will target — and why SDK versions 26 and 27 got blacklisted entirely.

Programming

Build Your Own Stack-Based Bytecode Virtual Machine in C

Ever wonder how Python's CPython, the JVM, or the Lua VM actually execute code under the hood? In this article, we build a stack-based bytecode virtual machine from scratch in C.

Programming

C# 14 Is Actually Good And I'm Not Happy About It

C# 14's most significant new features explained — what changed, why it matters, and why the language that used to mean enterprise bloat is now genuinely good.

Programming Featured

Java 26 Is Here, And It's Finally Finishing What It Started

JDK 26's ten targeted features explained — what's shipping, what it means for production Java, and why the language keeps reshaping the terrain while you're not watching.

Programming

What is Go? Google's Language That Won the Cloud

Go is Google's compiled language built for simplicity and brutal concurrency. Here's what it is, how it works, and why it runs half the cloud infrastructure you use every day.

Programming

What is Rust? The Language That Makes Systems Programming Safe

Rust eliminates entire categories of bugs — null pointer dereferences, buffer overflows, data races, use-after-free — at compile time with no runtime overhead. Microsoft, Google, Amazon, and the Linux kernel all use it for systems code.

Programming

What is Java? The Language That Runs Minecraft, Your Bank, and Half the Internet

Java has been declared dead approximately forty times since 1995. It still runs Minecraft, Android, LinkedIn, Twitter's backend, and the financial systems that process your paycheck. Here is what the language actually is, how the JVM works, and why it refuses to die.

Programming

What is Python? Enterprise, Data Science, and the Backend of the Web

Python runs Instagram, Dropbox, Netflix, Spotify, and Reddit. It trains the models that power modern AI. It processes petabytes of data in enterprise pipelines. And I ignored it for years because I thought it was just for academics. Here is what changed my mind.

Programming

Parallelizing Java Streams with Virtual Threads: Building vtstream

You know what's funny about parallelStream() in Java? Everyone acts like it's this magic performance switch. Just slap .parallel() on your stream and suddenly your code is running on all your CPU cores, right? Wrong. Or at least, not in the way you'd want.

Programming

Guide to Enums in the Python Programming Language

Enumerations (Enums) provide a powerful way to represent a set of named values. Enums bring clarity, maintainability, and readability to code by replacing numeric or string constants with more meaningful named constants. The most common way I see people use enums is in roles in a web application such as

Programming

Python's async/await: How It Actually Works and Why You Need It

asyncio isn't magic. It's a while loop that checks a queue. Once you understand the event loop model, async/await stops being confusing and starts being the most useful tool in your Python kit. Here's the mental model, the real code, and the mistakes that will ruin your day.

Programming

Async Timeouts with CompletableFuture: Fixing Blocking Java Code the Right Way

1,000 threads. All of them blocked on future.get(). That's the production nightmare that forced a full rewrite — and the journey through reactive callbacks, exception swallowing pitfalls, and finally a clean within() utility that handles timeouts without giving up the async model.

Programming

Implementing Your Own Garbage Collector in Java: Memory Allocation, Reference Tracking, and GC Algorithms

This guide walks through designing a fixed-size memory pool, implementing reference counting with cycle detection, coding Mark & Sweep, Mark & Compact, and Copying GC algorithms, and wiring root object identification and sweeping into a working CustomGarbageCollector class.

Programming

Your Container Is Running SerialGC and Nobody Told You

You tuned G1 flags for a week. Your pod has one CPU, which means the JVM quietly picked a single-threaded collector at startup and ignored every flag you set. Here is the OpenJDK source that made that decision.

Programming

Rust Is Memory Safe. Somebody Still Does the Knife Work.

Every guarantee you have been sold about Rust is real. It is also propped up on raw pointer arithmetic sitting in the standard library, held together by comments that nothing verifies. Here is what is actually back there.

Programming

Intuitive Method of Finding the Inverse of a Matrix

Finding a matrix inverse is very useful not only in Computer Science but when solving equations by hand. However, using the formula Adj(A) / det(A) can be quite tedious, especially if you don't know how exactly it works. In this article I will show how to intuitively

Programming

Getting started with Embedded C

The Goal By the end of this tutorial, you will be able to compile a binary written for the avr instruction set targeting the AtMega328P microcontroller on an Arduino Nano or Arduino Uno R3 form factor. Needed Documentation * Arduino Nano PCB design * Atmega328P datasheet Materials used * Arduino Nano * Arduino Uno