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Real-SWE: Benchmarking AI models on private, real-world, enterprise codebases
Real-SWE benchmarks frontier AI models on private production codebases licensed from real companies. Eighteen models across twenty-five tasks.
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 455 posts.
182
Pharo 14
Pharo is a pure object-oriented programming language and a powerful environment focused on simplicity and immediate feedback.
183
Simplifying Vulkan one subsystem at a time
When those of us in the Vulkan® working group want to modify the API—whether it’s a new hardware feature to expose, a new use case we want to address, or even just a gap in the spec we want to address—we have one invaluable tool that we make heavy use of: extensions! Extensions are a wonderful way for us to get…
184
Scaling Git at OpenAI
How OpenAI built Pando, a Git-compatible backend designed for the scale of development that Codex makes possible.
185
Lies I was told about collaborative editing, Part 2: Why we don't use Yjs
In part 1 of this series , we found that users generally view the most popular collaborative text editing algorithms (including the most popular library, Yjs ) as silently corrupting their documents when the algorithms resolve direct editing conflicts. We argued that, while this is potentially ok for live…
186
SWE-1.7 Reach Near GPT 5.5 and Opus Intelligence
Today, we’re launching SWE-1.7, the most capable model we’ve trained so far. It reaches frontier-level intelligence at a much lower cost, advancing the…
187
Pandas 3.0
We're excited to announce the release of pandas 3.0.0. This major long-awaited release brings significant improvements to pandas, but also features some potentially breaking changes.
188
Julia 1.13 highlights
Highlights of the Julia 1.13 release.
189
New MCP Roadmap
An update on the Model Context Protocol roadmap and focus areas for upcoming specification releases.
190
Python Workers are now generally available
Python Workers allow developers to run Python web frameworks and AI orchestration libraries natively in the Cloudflare Workers runtime. You can seamlessly integrate with Cloudflare's ecosystem including D1, R2, and Workers AI without writing any JavaScript glue code.
191
The challenges of soft delete
Exploring alternatives to the archived_at column pattern: triggers, application events, and WAL-based change data capture.
192
Teaching Claude Why
New research on how we've reduced agentic misalignment
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Why is the x86 undefined instruction called ud2? Why 2?
It came after ud0 and ud1.
194
The creator of Jujutsu has joined ERSC
After 15 years at Google, the creator of JJ joins ERSC as Chief Technology Officer.
195
PR spam today looks like email spam in the early 2000s
OpenClaw became the fastest-growing repo in GitHub history almost overnight. The PR data offers a preview of what the future of open source contribution may look like.
196
Bun 1.4
Bun 1.4 rewrites Bun in Rust, ships built-in headless browser automation (Bun.WebView), Bun.Image, Bun.markdown, JSON5, JSONL, Terminal and cron APIs, Node.js 26.3.0 compatibility with 1,517 newly passing tests, parallel test and run, Windows ARM64, and an opt-in global virtual store for up to 7× faster installs.
197
Bijou64: A variable-length integer encoding
An accidentally fast variable-length integer encoding
198
WASI 0.3
WASI 0.3 is official, and async is now native to WebAssembly Components. The WASI Subgroup voted to ratify WASI 0.3.0, rebasing WASI onto the WebAssembly Component Model’s async primitives. The 0.3.0 specification is now stable, and runt...
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Bevy 0.20
Thanks to 227 contributors, 817 pull requests, community reviewers, and our generous donors, we're happy to announce the Bevy 0.20 release on crates.i…
201
Erlang/OTP 29.0
The official home of the Erlang Programming Language
202
FrontierCode: An eval to measure whether you would actually merge the code
Today’s coding benchmarks have established that models can write correct code, but the question we should really be asking is: can models actually write…
203
Rust’s Standard Library on the GPU
GPU code can now use Rust's standard library. We share the implementation approach and what this unlocks for GPU programming.
204
Removing React.js from the codebase and adapting Htmx for UI interactivity (2023)
Started by rafalp on Dec. 12, 2023 in the Roadmap category. 6 replies, last one from July 25, 2024.
205
Prime Agent: A self-improving RLM agent
Prime Agent is our open-source, self-improving coding harness built around two abstractions: the Recursive Language Model (RLM) and the Continual Harness. With Opus 5, it achieves 95.5% on ARC-AGI-3, surpassing the reported human expert baseline.
206
MAUI Is Coming to Linux
Announcing the first release of Avalonia MAUI
207
AI2: Open Coding Agents
SERA is the first in our family of Open Coding Agents, achieving state-of-the-art performance at low cost.
208
Getting the most out of Opus 5.5 in Claude and Claude Code
How to prompt Opus 5.5, steer a long run, and check your results in Claude apps and Claude Code.
209
How to make a fast dynamic language interpreter
This post is about optimizing an extremely simple AST-walking interpreter for a dynamic language called Zef that I created for fun to the point where it is competitive with the likes of Lua, QuickJS, and CPython.
210
My Agent Skill for Test-Driven Development
AI agents tend to be, at least as of this writing (May 2026), lousy at writing tests. The tests they write are often vague, cryptic, overcomplicated, hacky, dis...