Programming Languages - SudoSecurity

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

Web Development

Inside TypeScript 7: What a Year-Long Rewrite in Go Actually Bought Developers

A deep look at how Microsoft's Go-based TypeScript 7 compiler achieves its speed gains, and what the Visual Studio Code team's year-long migration reveals about adopting it safely.

Web Development

TypeScript 7.0 Is Officially Here: What Changed and How to Upgrade

TypeScript 7.0 has officially launched, bringing a native Go-based compiler with 8x to 12x faster build times. Here's what shipped, how to install it, and how to migrate safely.

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 Languages

Markdown Is a Programming Language. Fight Me.

The dev community has spent 20 years calling Markdown 'just a markup language.' They're wrong. Here's the full technical case — parse trees, AST internals, the CommonMark spec, Pandoc's extended grammar — plus why Markdown is the fastest way to write long documents that has ever existed.

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.

Web Development

TypeScript 6.0 Is Out, and It's the End of an Era

TypeScript 6.0 dropped today. It's the last version of TypeScript written in TypeScript. Strict mode is on by default, ES5 is gone, outFile is dead, and TypeScript 7.0 — rewritten in Go — is right behind it. Here's everything that changed and what you actually need to do.

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.

Software Development

What is Go? The Language Google Built for Production Engineering

Go is a statically typed, compiled language built at Google in 2009. It compiles to a single binary with no runtime dependency, starts in milliseconds, and handles concurrency through goroutines and channels. Docker, Kubernetes, and Terraform are all written in Go. Here is why.

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.

Software Development

Deep Dive! Using Deno and Bun in Production Environments

Past the benchmark charts and feature matrices — here's what Deno's permission system and Bun's native APIs look like when you build something real with them. The gotchas, the sharp edges, and the parts that are actually better than Node.

Web Development

JavaScript vs TypeScript: Which One Should You Actually Use?

TypeScript is JavaScript with types. That's the short answer. The real answer involves a friend who was right about something I didn't want to hear, a production bug that types would have caught immediately, and the slow realization that the compiler was never the enemy.

Web Development

What is TypeScript? Why I Finally Stopped Fighting the Type System

TypeScript is JavaScript with types. That's the short answer. The real answer involves a friend who was right about something I didn't want to hear, a production bug that types would have caught immediately, and the slow realization that the compiler was never the enemy.

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.