Pi 1.0

https://earendil.com/static/og/posts/pi-1-0.png
Earendil ships Pi 1.0, a hardened and minimal agent harness, after months of feedback from users. The new version adds features while maintaining its simplicity and supermalleability.

Clef: Open-weight decision models, and new RL fine-tuning platform

https://blog.cloudflare.com/_image?href=https%3A%2F%2Fblog.cloudflare.com%2F_emdash%2Fapi%2Fmedia%2Ffile%2F01M3TJPKAE7MFBW626XHNC9QVA.png&w=1999&h=1125&f=webp&fit=cover&position=center
Cloudflare is releasing two decision models, Clef and Clef-flash, which can produce bounded structured outputs quickly and consistently. These models are designed to work with various inputs without retraining, contrasting with Large Language Models (LLMs).

Several vulnerabilities have been discovered in the Linux kernel

The Debian Security Advisory DSA-6528-1 has been released to address several vulnerabilities in the Linux kernel, including privilege escalation and information leaks. The stable distribution (trixie) has been updated to version 6.12.111-1, and users are recommended to upgrade their linux packages for security reasons.

SvelteKit 3

https://svelte.dev/blog/sveltekit-3-is-here/card.png
SvelteKit has been updated with polish, type safety, and fewer issues. A migration guide is available to help users adapt to the changes.

Ask HN: Who is hiring? (October 2026)

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Show HN: Janus – Go binary that runs GGUF models via Vulkan on AMD/Intel/Nvidia

https://opengraph.githubassets.com/b729d497b0049e36f7c59afabc693705eed5c2724ebb5db59809389cfca64a6d/Vibra-Ingenn/Janus
Janus is a single Go binary that runs .gguf models on your machine, exposing an OpenAI-compatible API and web UI. It's designed to be flexible, allowing users to choose their preferred front end.

CSS Bed: Classless CSS themes to use as starting points in web development

https://i.imgur.com/mOq7DbU.jpg
This is a collection of classless CSS themes for web development, offering small size and no learning curve. The code provided includes examples of HTML, CSS, and JavaScript.

StreetComplete on iOS is now in public beta

https://private-user-images.githubusercontent.com/4661658/309577429-06911703-3822-4dfd-b6de-f48fc533eba6.png?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.AYPy2nLcXZmkNrEgD48MU6qUMZo_a5PeAxlVmkUU2Hk
This ticket aims to coordinate iOS port development for StreetComplete, a mapping app written in 100% Kotlin. Contributions are welcome and can be found on the Project Board with detailed steps outlined.

Pi Durable

https://earendil.com/static/og/posts/pi-durable.png
Earendil and the Pi community have released Pi 1.0, a solid foundation for building agentic applications, along with an experimental new package called Pi Durable that enables long-running, durable agents to run anywhere.

Using Opus 5.5 to discover a new eyewitness record of the dodo

RIP, vector database

https://turbopuffer.com/og/turbopuffer.png
Turbopuffer is changing its storage architecture to improve performance and scalability for non-vector query plans. The new engine, called turbopuffer v3, will allow for faster queries and better handling of large datasets.

Git 3.0's upcoming SHA-256 default will be a costly mistake

https://blog.gitbutler.com/_next/image?url=https%3A%2F%2Fd2m1ukvwmu7gz4.cloudfront.net%2F9ed26406-8fd8-40f6-a179-3bd86bada713.png&w=3840&q=75
The upcoming Git 3.0 release is planning to change its default hashing algorithm from SHA-1 to SHA-256, but this may cause significant problems for the ecosystem due to compatibility issues and increased complexity. The author suggests an alternative approach of independently rehashing tree contents with a different algorithm and injecting that header into signed objects, which could provide ...

ArXiv's Updated Rate Limit Policy

https://i0.wp.com/blog.arxiv.org/wp-content/uploads/2026/10/arXiv-Monthly-Submissions-September-2026.png?resize=1024%2C642&ssl=1
arXiv is introducing a new rate limiting policy to address the surge in submissions, capping authors at 2 submissions per month and 3 active submissions. This aims to distribute moderators' time fairly and protect the arXiv corpus from low-quality papers.

Oxygen-deprived underwater zones may not be “dead zones” but clue to early life

Automatic Transmission – a data-privacy study of connected vehicles

https://automatictransmission.khoury.northeastern.edu/images/test-facility.png
We tested 21 vehicles and found that most contacted third-party advertisers over Wi-Fi, with some apps sharing sensitive data. Vehicle owners have limited control over data sharing due to complex systems.

Apple's smart home camera reportedly won't record video

https://www.theapplepost.com/wp-content/uploads/2026/09/HomePadConcept1-960x640.jpg
Apple's new smart home camera, J450, uses AI to analyze surroundings without recording video, focusing on activity detection and automation. It aims to enhance privacy and integrate with Apple's Home system, differing from traditional security cameras.

Aweb – Communication for AI Agents

https://aweb.ai/og-card-20260823.png
Aweb provides a stable identity, durable mail and chat, and wake-up events across sessions, runtimes, and machines. It can be integrated with existing agent setups like Alice's Claude Code and Bob's Pi on another machine to enable seamless communication between agents.

Vote on which of Hacker News' challenges for AI have been met

Has this happened? Voting has closed. See the results.

Various Projects Find Hidden SDR Capabilities in ESP32 Microcontrollers

https://www.rtl-sdr.com/wp-content/uploads/2026/10/web-receiver-fft-1024x640.png
Researchers discovered an undocumented feature in ESP32 WiFi microcontrollers that allows them to capture raw IQ baseband samples, enabling use as a software-defined radio (SDR) covering 2.4-6 GHz frequencies. This breakthrough enables direction finding and phase-coherent IQ sample capture on arbitrary signals, but not continuous demodulation or decoding without additional hardware.

Cloudflare K2: serverless event streams

https://blog.cloudflare.com/_image?href=https%3A%2F%2Fblog.cloudflare.com%2F_emdash%2Fapi%2Fmedia%2Ffile%2F01M3SXWMA7TC0H6D9G217A3327.png&w=1999&h=1125&f=webp&fit=cover&position=center
Cloudflare K2 is a durable event streaming primitive that decouples producers and consumers, allowing for independent processing of data. It stores events as an ordered log on top of R2 object storage, enabling scalable and long-term retention.

Bez: Generating a browser engine from specs and tests

https://tangled.org/burrito.space/bez/opengraph
Bez generates a web engine from specifications, with three shipping browsers and WPT as tests, making it faster to update than traditional hand-built engines. The engine is designed to be easy to embed and can be customized for specific use cases, such as analyzing websites or apps.

RacketCon Is Saturday

https://con.racket-lang.org/rcon2026logo.png
Researchers at Stanford, Indiana, and Northwestern universities are working on improving Racket's type system and language features for systems programming. They aim to address limitations in existing languages like Racket and Rhombus with new tools such as Typed Racket, Pille, Treason, Herbie, cio effect handlers.

Show HN: Open-source model routing for coding agents at Astra-level performance

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Butterflies use optical illusions to dodge predators

https://www.essex.ac.uk/-/media/header-images/open-day-image_1000x1000/open-day_image_1000x1000)3.png?mw=300
Butterfly wing patterns create motion illusions similar to the barber-pole effect, confusing predators by making their movement appear different. Researchers found these patterns are widespread and evolved to deter attacks, suggesting motion confusion is a key evolutionary strategy.

Ask HN: Who wants to be hired? (October 2026)

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Your Big Mac might cost more if McDonald's AI thinks people nearby can afford it

Context Language Models

https://arxiv.org/static/browse/0.3.4/images/arxiv-logo-fb.png
Context Language Models (CLMs) learn and manage their own context by updating a file, outperforming existing models in various tasks. CLMs enable both in-context and parametric learning of context-management strategies with natural-language instructions or online reinforcement learning.

The death of web development education

https://molily.de/img/spidermum-gray-bg-square-small.png
Baldur Bjarnason and others describe how GenAI has ruined their businesses, threatening livelihoods of writers, teachers, and communicators in web development education. They express concerns about the loss of human interaction and expertise in favor of AI-powered chatbots.

How to speed up the Rust compiler in September 2026

The Rust compiler has seen significant performance improvements over the past two months, with a mean wall-time reduction of 4.57% across 629 benchmark measurements. Many individual PRs have contributed to these improvements, including optimizations for borrow checking and trait solvers.

2026 International Utility Locate Rodeo

The 2026 MOCGA Summit will host the International Utility Locate Rodeo, promoting safety and best practices in utility locating. Competitors from across North America compete in a challenging environment to showcase their skills.