
In controlled offline evaluations, HydraFusion’s selective coding workflows matched or exceeded the evaluated Opus 5 baseline while reducing estimated workflow cost. Now available as a research preview in GitHub Copilot.

Use production traffic and security signals to prioritize findings, prepare edge mitigations when safe, and propose code patches. By combining WAF data with OpenAI Daybreak models, Vulnerability Discovery and Remediation helps teams identify and patch the most critical threats first.
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Ken Sanderson, Jacob Crisp·September 3, 2026Security 
Learn how to run parallel agents in the GitHub Copilot app, and experience the moment it stops feeling scary and starts feeling powerful.
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Kayla Cinnamon·September 3, 2026AI & ML 
We’re introducing ZGateway, the proxy we are using to unify traffic through ZippyDB, Meta’s most widely-used key value store. As a bonus, it also enables admission control, load balancing, cross-region resilience, and richer operations. ZippyDB is the most widely used key value store at Meta, backing product metadata, counters, and configuration, and can serve billions […]

Most of what an AI coding agent does for me isn't thinking. It's I/O.
SESpotify Engineering·September 3, 2026AI & ML 
From loop engineering to harnesses, squads, and open weights, the GitHub Podcast breaks down the AI terms showing up in developer conversations.
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Cassidy Williams·September 2, 2026AI & ML 
Why shorter outputs can cost more, and how GitHub Copilot reduces wasted work across the complete coding task.
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Erik Kristensen, Napalys Klicius·September 2, 2026AI & ML 
We’ve built an AI agent that acts as a secondary expert for a given domain, making deep specialist knowledge readily available and preserved for anyone in an organization to access, share, and build upon. This is not a typical domain-specific agent. Its novelty comes from integrating two layers: A structured, auditable knowledge architecture separates what […]
CWChris Wiltz·September 2, 2026AI & ML 
River, Shopify’s AI agent in Slack, enables autonomous vulnerability remediation, not just detection.
SEShopify Engineering·September 2, 2026Security 
Could we get more cache space with the same hardware? We prototyped compression inside Cloudflare's cache to find out.

This blog is about how CYPEX can cut costs on building internal tools.


Fluid is Vercel's compute architecture. One system that assembles the right machine for any workload, builds, functions, or sandboxes, and reshapes it on demand.

Bot operators have historically had the economic advantage, bypassing static, deterministic detection rules with cheap proxies and retooling. Cloudflare's new Adaptive Intelligence engine flips this dynamic by autonomously learning from the meta-signals of live traffic and deploying disposable rules, making automated attacks too expensive to sustain.

About a year ago, I was offered a presentation slot at the WeAreDevelopers World Congress in Berlin. I rarely take speaking engagements, especially international ones, but this one arrived at just the right time, the right place, and with the right person – I said yes, on the contingency that Ben Dumke-von der Ehe joins me in the presentation. Ben is an early community hire at Stack Overflow who l

The journey to create a polyfill for the upcoming CSS random() function that works in all browsers. Let’s Use the Emergent CSS random() Function in all the Browsers originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.

Well, that’s a wrap. No, not a flex-wrap, but rather today marks a new day, week, month, season, aaaand new edition of What’s important (#18), bringing you the best content that developers have produced over the last couple of weeks or so. What’s !important #18: <geolocation>, Syntax ::highlight()ing, named-feature(), and More originally handwritten and published with love on CSS-Tricks . You shou
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Daniel Schwarz·August 31, 2026Frontend 
CPCYBERTEC PostgreSQL·August 31, 2026Databases 
Could there be a better way to welcome the new month than with a new collection of desktop wallpapers? Whether you’re holding tightly onto summer or eagerly awaiting autumn, we’ve got some eye-catching designs to make your September just a bit more colorful. Enjoy!

How we built design.md, a single public file any coding agent can load to build on-brand Vercel pages, and the eval loop that decided every rule inside it.

Our cookie auditor acts like a privacy-conscious user by visiting web pages and checking that they only load cookies consistent with that user’s preferences.

Bot operators now have a home in the Cloudflare dashboard to manage submissions. This update adds submission status tracking, submission editing, and a behavior model so operators can accurately declare how their bots use content.

This is an extended blog, and talks about the features of pgwatch v6.0.0 beta in more details. Read to know and contribute.


Five Rust-level memory optimizations to the DNS cache layout of Big Pineapple cut per-entry memory by 56%, freeing approximately 100 TB of memory across Cloudflare's fleet.

The general idea is that we create a Document Picture-in-Picture window (DPIP window), and then we put HTML, CSS, and JavaScript into it. Creating Web Widgets Using the Document Picture-in-Picture API originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.
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Daniel Schwarz·August 27, 2026Frontend 
For thirty years we built data systems for human analysts, who supply the context, judgment, and skepticism to work around data that's incomplete or wrong. Autonomous agents supply none of that. They act on whatever they're handed, confidently. For data to be AI-ready we need to build a series of layers: a data foundation that makes data trusted, a context layer to apply proper meaning, and an acc
PSPramod Sadalage and Prem Chandrasekaran·August 27, 2026AI & ML 
OpenClaw is the fastest-growing project in GitHub history. Peter Steinberger and several maintainers share what they learned in the project’s first six months.

How Vercel built Workflow SDK: durable workflows that feel like ordinary code, run on infrastructure you already have, and aim to make steps free.

The CSS animation-trigger property allows you to delay the start of a CSS animation until a specific trigger occurs. animation-trigger originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.
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Saleh Mubashar·August 26, 2026Frontend 
This blog explains all feature highlights related to PGWatch 6.0.0 beta. You can read to understand and test the features yourself.

Managing library updates can be tedious at times. Learn how the GitHub Copilot app can handle this type of repetitive task.
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Christopher Harrison·August 26, 2026AI & ML 
Data visualisation sits at the intersection of two disciplines that rarely talk to each other: data and design. Meriem Benhabiles explores what changes when you bring structured UX thinking to dashboards and data presentations, from the questions you ask before opening any tool to the decisions that determine whether an insight actually lands.

Build production-grade AI agents with Vercel's Agent Stack. Connect to any model, run durable multi-step workflows, and securely link agents to your data and tools. Every building block you need, in one place.

Syntax highlighting for code blocks without the complicated markup, spans, classes, and bloated JavaScript, courtesy of Uncle Dave. MicroLighter: Syntax Highlighter originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.

This blog explains the daily operations of PostgreSQL on Kubernetes, which involves scaling, resizing. Read to have a deep dive.
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Hans-Jürgen Schönig·August 25, 2026Databases 
These are the lessons we learned evaluating LLMs for real-world secret scanning.
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Mariko Wakabayashi, Zixiao Chen·August 25, 2026AI & ML 
Every website peaks on launch day and slowly drifts from there, not because it breaks, but because nobody has time to keep it current. Autonomous websites, continuously optimized by agents after launch, aim to change that. Pierre Burgy shares what they learned building for full website autonomy and the deeper design problem they uncovered along the way.

Execute untrusted JavaScript and TypeScript without giving it access to your application, and pause mid-run for human approval.

Vercel Connect is now generally available. Agents request short-lived, scoped tokens at runtime instead of storing provider secrets that never expire.

We migrated the Cloudflare Blog to EmDash to prove our stack at massive scale. Here is how we stress-tested performance, safely routed production traffic, and redesigned the frontend experience.

Seven and half years after blocks arrived in Core, WordPress introduces a way to build blocks without React annd build pipelines. All you need is PHP. WordPress PHP-Only Block Registration originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.

We built a plugin for the GitHub Accessibility Scanner to make sure your alt text is actually accessible. Here’s how it works.
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Taarik Ashenafi, Keenan Zhou·August 24, 2026Design & UX 
Training and serving frontier AI models depends on fast, reliable networks that move data between GPUs without wasting compute cycles. To meet this challenge at scale, Meta designed MetaRoCE – a clean-sheet RDMA transport protocol purpose-built for AI workloads on commodity Ethernet. We’re releasing the MetaRoCE specification, a reference software implementation and a compliance test […]

MTIA 300 is the first of Meta’s family of in-house training and inference accelerators optimized for training ranking and recommendation models. We’re sharing how MTIA 300’s built-in NIC chiplets allow it to meet the communication needs associated with training recommendation models with superior performance over general-purpose GPUs. By co-designing MTIA’s communication library, HCCL, alongside t

Cloudflare's new Bot Preference Sync automatically aligns your robots.txt file with your AI bot policies for Search, Agent, and Training. Easily manage which bots access your content without maintaining static files.
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Jin Hee Lee·August 21, 2026AI & ML 
A newly resolved proposal would allow us to select classes that are a prefix for variations with a wildcard, like .prefix-* . Resolved: CSS Class Prefix Selector originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.


SASusan Aziz·August 21, 2026AI & ML 
Cloudflare OAuth now supports optional scopes, giving users more control over what an app can access and helping developers build secure consent flows around the task at hand.
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Miller Vargas, Adam Bouhmad·August 20, 2026Engineering 
Agentic products pose a unique set of design challenges. Here’s what we’ve heard from leaders.

An update on the August 17 outage and the steps we’re taking to improve reliability.

Discover SMIL, the often-overlooked way to animate SVGs that works inside `` tags and can fully animate everything in an SVG without JavaScript.

As AI transforms software economics, the standard revenue playbook is breaking down. Learn how leaders around the world are preparing for agent buyers, updating processes for faster pricing iteration, and building more flexible infrastructure.

Generated code in v0 sandboxes queries Snowflake, but the OAuth token never enters the sandbox. A protocol-aware proxy injects credentials at request time, and blind replacement was itself a leak.

In 2024 and 2025, we reassessed remote Spectre attacks on our Workers infrastructure. We share details about the new attack primitives like Spectre gadgets, remote timers, achieving co-location and how new defenses further harden Cloudflare Workers.
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Martin, Albert Pedersen·August 19, 2026Security 
Apply a style when someone navigates from one specific page to another. The idea being it'd make the sources for cross-document view transitions declarative in CSS rather than managing that stuff in JavaScript. CSS Navigation Matching, Early Days originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.

As someone who teaches beginning web development, I find that building a WordPress site makes for a great final project. Hosting those projects has always been a roadblock though. WordPress.com Student Plan originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.

Effective writing from a practitioner is a style distinct from academic writing or thought-leadership content. It relies on authority from experience (not credentials), naming tensions but letting them live, keeping the author in the writing, and the expectation that readers recognize the pattern from their own experience.

If you’re juggling multiple Copilot sessions, use the My work pane to track what’s in flight, what’s done, and what’s next.
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Christopher Harrison·August 19, 2026AI & ML