
Cloudflare suffered a service outage on February 20, 2026. A subset of customers who use Cloudflare’s Bring Your Own IP (BYOIP) service saw their routes to the Internet withdrawn via Border Gateway Protocol (BGP).
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Tubes, Dzevad Trumic·February 21, 2026Networking 
The Cloudflare API has over 2,500 endpoints. Exposing each one as an MCP tool would consume over 2 million tokens. With Code Mode, we collapsed all of it into two tools and roughly 1,000 tokens of context.

I upgraded kentcdodds.com from Remix v2 to React Router v7 in a day with over 17k lines of code changed. Here's how I did it.
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Kent C. Dodds·February 20, 2026Frontend 

AI is rewiring developer preferences through convenience loops. Octoverse 2025 reveals how AI compatibility is becoming the new standard for technology choice.
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Andrea Griffiths·February 19, 2026AI & ML 
Not all impactful data science work involves experiments or optimization. Sometimes it’s about making complex systems legible, correct, and safe to operate.

Let’s dig into the 2025’s open source data on GitHub to see what we can learn about the future.


What makes streaks so powerful and addictive? To design them well, you need to understand how they align with human psychology. Victor Ayomipo breaks down the UX and design principles behind effective streak systems.

For the best ideas to move forward, we need the power of code and the canvas. Claude Code to Figma is just one way we’re giving builders more choice.

Now you can take workflows that start in Claude Code even further in Figma.


Learn how The GitHub Secure Open Source Fund helped 67 critical AI‑stack projects accelerate fixes, strengthen ecosystems, and advance open source resilience.


APAlli Pope·February 17, 2026AI & ML 
Chrome 145 enables % units for letter-spacing and word-spacing as well as overscroll-behavior for all scroll containers, now baseline.

ecdysis is a Rust library enabling zero-downtime upgrades for network services. After five years protecting millions of connections at Cloudflare, it’s now open source.

This issue of What’s !important is dedicated to our friends in the UK, who are currently experiencing a very miserable 43-day rain streak. Presenting: the five most interesting things to read about CSS from the last couple of weeks. Plus, the latest features from Chrome 145, and anything else you might’ve missed. TL;DR: lots of content, but also lots of rain.
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Daniel Schwarz·February 13, 2026Frontend 
Chrome 145 finally ships text-justify, which is almost baseline now.

Discover GitHub Agentic Workflows, now in technical preview. Build automations using coding agents in GitHub Actions to handle triage, documentation, code quality, and more.
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Don Syme, Peli de Halleux·February 13, 2026AI & ML 
Designing for mental health means designing for vulnerability. Empathy-Centred UX becomes not a “nice to have” but a fundamental design requirement. Here’s a practical framework for building trust-first mental health products.

This is the second part of a small two-part series. In this article, we will explore another type of grid: a pyramidal one. We are still working with hexagon shapes, but a different organization of the elements., while exploring other different shapes.

Open source is hitting an “Eternal September.” As contribution friction drops, maintainers are adapting with new trust signals, triage approaches, and community-led solutions.

The new contrast-color() function is not fully supported yet. But can we still implement it in a cross-browser friendly way using other new CSS features?

Chrome 145 becomes the first to ship customizable <select>, as well as column-wrap and column-height for better multicol layouts.

Making products like Dropbox Dash accessible to individuals and businesses means tackling new challenges around efficiency and resource use.
HBHicham Badri·February 11, 2026AI & ML 
In January, we experienced two incidents that resulted in degraded performance across GitHub services.

WHAT IT IS The rise of agentic software development means code is being written, reviewed, and shipped faster than ever before across the entire industry. It also means that testing frameworks need to evolve for this rapidly changing landscape. Faster development demands faster testing that can catch bugs as they land in a codebase, without […]

Autonomy is an output of a technical system. Trustworthiness is an output of a design process. Here are concrete design patterns, operational frameworks, and organizational practices for building agentic systems that are not only powerful but also transparent, controllable, and trustworthy.
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Victoryocco·February 11, 2026AI & ML 
Our latest study suggests that AI is driving renewed momentum in design hiring. We unpack why that is, what hiring managers prioritize, and which skills designers need to get ahead.
AHAndrew Hogan·February 10, 2026AI & ML 
Can we make pie chart that's semantic, with flexible markup, and avoids using a JavaScript library? Here's how I tackled it.
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Juan Diego Rodríguez·February 9, 2026Frontend 
Una Kravets announces border-shape with a couple of cool demos.

We’re sharing details of the role backend aggregation (BAG) plays in building Meta’s gigawatt-scale AI clusters like Prometheus. BAG allows us to seamlessly connect thousands of GPUs across multiple data centers and regions. Our BAG implementation is connecting two different network fabrics – Disaggregated Schedule Fabric (DSF) and Non-Scheduled Fabric (NSF). Once it’s complete our AI […] Read Mor

Learn how we built an AI Engine Optimization system to track coding agents using Vercel Sandbox, AI Gateway, and Workflows for isolated execution.

Why competitive advantage in AI comes from the platform you deploy agents on, not the agents themselves.


Adam Argyle quickly outlines the upcoming customizable <select>.

The number of DDoS attacks more than doubled in 2025. The network layer is under particular threat as hyper-volumetric attacks grew 700%.

Think of Continuous AI as background agents that operate in your repository for tasks that require reasoning.

Prescriptive class name conventions are no longer enough to keep CSS maintainable in a world of increasingly complex interfaces. Can the new `@scope` rule finally give developers the confidence to write CSS that can keep up with modern front ends?
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Blake Lundquist·February 5, 2026Frontend 
A six-week program to help you scale your AI company offering over $6M in credits from Vercel, v0, AWS, and leading AI platforms

It's been a year since I invited Americans to join us in a pledge to Share the American Dream: 1. Support organizations you feel are effectively helping those most in need across America right now. 2. Within the next five years, also contribute public dedications of time or funds towards longer term efforts to keep the American Dream fair and attainable for all our children. Stay gold, America. 💛

With our new AI image editing tool, Vectorize, you can turn raster images into editable vectors, allowing you to tweak, refine, and scale designs directly in Figma.
RKRogie King·February 4, 2026AI & ML 
Claude by Anthropic and OpenAI Codex are now available in public preview on GitHub and VS Code with a Copilot Pro+ or Copilot Enterprise subscription. Here’s what you need to know and how to get started today.
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Mario Rodriguez·February 4, 2026AI & ML 
We’re sharing a novel approach to enabling cross-device passkey authentication for devices with inaccessible displays (like XR devices). Our approach bypasses the use of QR codes and enables cross-device authentication without the need for an on-device display, while still complying with all trust and proximity requirements. This approach builds on work done by the FIDO […]

Local Uploads on R2 reduces request duration for uploads by up to 75%. It writes object data to a nearby location and asynchronously copies it to your bucket, all while data is available immediately.

Figma achieves C5 accreditation, strengthening cloud security for customers across the DACH region.

What languages are growing fastest, and why? What about the projects that people are interested in the most? Where are new developers cutting their teeth? Let’s take a look at Octoverse data to find out.

Combobox vs. Multi-Select vs. Listbox vs. Dual Listbox? How they are different, what purpose they serve, and how to choose the right one. Brought to you by Design Patterns For AI Interfaces, **friendly video courses on UX** and design patterns by Vitaly.
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Vitaly Friedman·February 3, 2026AI & ML 
Vercel is opening its open source software bug bounty program to the public for researchers find vulnerabilities and make OSS safer

Learn how Vercel uses HTTP content negotiation to serve markdown to agents and HTML to humans from the same URL, reducing response sizes by 90% while keeping both versions synchronized.

A senior engineer’s guide to architecting and extending Copilot’s real-world applications.
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Ari LiVigni·February 2, 2026AI & ML 
Let’s make the most of the shortest month of the year with a new collection of desktop wallpapers that are sure to bring a smile to your face — and maybe spark your creativity, too. All of them were designed with love by the community for the community and can be downloaded for free. Happy February!

Google's dual-purpose crawler creates an unfair AI advantage. To protect publishers and foster competition, the UK’s Competition and Markets Authority must mandate crawler separation for search and AI.
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Maria Palmieri, Sebastian Hufnagel·January 30, 2026AI & ML 
Deploy multiple Workers under a single domain with the ability to make them feel like single-page applications. We take a look at how service bindings enable URL path routing to multiple projects.

AI coding tools like agents can be valuable allies in everyday development work. They help handle time-consuming grunt work, guide you through large legacy codebases, and offer low-risk ways to implement features in previously unfamiliar programming languages. Here are practical, easy-to-apply techniques to help you use these tools to improve your workflow.
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Stefan Kaltenegger·January 30, 2026AI & ML 
AI agents need secure, isolated environments that spin up instantly. Vercel Sandbox is now generally available with filesystem snapshots, container support, and production reliability.

Moltworker is a middleware Worker and adapted scripts that allows running Moltbot (formerly Clawdbot) on Cloudflare's Sandbox SDK and our Developer Platform APIs. So you can self-host an AI personal assistant — without any new hardware.
CCloudflare·January 29, 2026AI & ML 
The new ::search-text pseudo (Chrome 144) matches are yellow while the current target (::search-text:current) is orange, but ::search-text enables us to change that.

Stu Robson's ReliCSS (clever name!) tool can excavate outdated CSS in your codebase that have modern CSS solutions.