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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.
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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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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…
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Scaling Git at OpenAI
How OpenAI built Pando, a Git-compatible backend designed for the scale of development that Codex makes possible.
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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…
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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…
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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.
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Julia 1.13 highlights
Highlights of the Julia 1.13 release.
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New MCP Roadmap
An update on the Model Context Protocol roadmap and focus areas for upcoming specification releases.
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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.
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The challenges of soft delete
Exploring alternatives to the archived_at column pattern: triggers, application events, and WAL-based change data capture.
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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.
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The creator of Jujutsu has joined ERSC
After 15 years at Google, the creator of JJ joins ERSC as Chief Technology Officer.
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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.
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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.
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Bijou64: A variable-length integer encoding
An accidentally fast variable-length integer encoding
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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…
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Erlang/OTP 29.0
The official home of the Erlang Programming Language
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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…
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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.
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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.
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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.
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MAUI Is Coming to Linux
Announcing the first release of Avalonia MAUI
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AI2: Open Coding Agents
SERA is the first in our family of Open Coding Agents, achieving state-of-the-art performance at low cost.
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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.
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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.
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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...