
This is the second post in the Ranking Engineer Agent blog series exploring the autonomous AI capabilities accelerating Meta’s Ads Ranking innovation. The previous post introduced Ranking Engineer Agent’s ML exploration capability, which autonomously designs, executes, and analyzes ranking model experiments. This post covers how to optimize the low-level infrastructure that makes those models run

Retailers know search and discovery have already shifted. What comes next is less settled. From embedded checkout to emerging third-party surfaces, here’s how ecommerce and AI leaders are integrating agentic commerce.
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Ashye Marcus·April 2, 2026AI & ML 
Vercel Sandbox snapshots let you save and restore your entire filesystem. Learn how we optimized snapshot restores with parallel downloads, streaming decompression, and local NVMe caching.

Today we are launching the beta of EmDash, a full-stack serverless JavaScript CMS built on Astro 6.0. It combines the features of a traditional CMS with modern security, running plugins in sandboxed Worker isolates.
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Matt Tk Taylor, Matt Kane·April 1, 2026Security 
Eight years ago, we launched 1.1.1.1 to build a faster, more private Internet. Today, we’re sharing the results of our latest independent examination. The result: our privacy protections are working exactly as promised.

These are the historical pranks I consider the top 10 most noteworthy, rather than the “best.” You’ll see that some of them crossed the line and/or backfired.

Safari TP 240 becomes the first to ship the revert-rule CSS keyword, which rolls the rule back to when it didn’t have its current value.

Monorepos will continue to grow as products evolve, but growth doesn’t have to mean friction.

By turning compaction into a layered, adaptive pipeline and strengthening our monitoring and controls, we made Magic Pocket more resilient to workload changes.

This year's Make-a-thon winners offer new ways to connect, reflect, and play through software.

Recent attacks on open source focus on exfiltrating secrets; here are the prevention steps you can take today, plus a look at the security capabilities GitHub is working on.

/fleet lets Copilot CLI dispatch multiple agents in parallel. Learn how to write prompts that split work across files, declare dependencies, and avoid common pitfalls.
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Matt Nigh, Brian LaFlamme·April 1, 2026AI & ML 
Design principles with references, examples, and methods for quick look-up. 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·April 1, 2026AI & ML 

Magic Transit customers can now program their own DDoS mitigation logic and deploy it across Cloudflare’s global network. This enables precise, stateful mitigation for custom and proprietary UDP protocols.
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Anita, Alex Forster·March 31, 2026Security 
A demonstration of how to setup a Patroni standby cluster, including prerequisites, configuration and promotion.

I used coding agents to build agents that automated part of my job. Here’s what I learned about working better with coding agents.
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Tyler McGoffin·March 31, 2026AI & ML 
Meta continues to lead the industry in utilizing groundbreaking AI Recommendation Systems (RecSys) to deliver better experiences for people, and better results for advertisers. To reach the next frontier of performance, we are scaling Meta’s Ads Recommender runtime models to LLM-scale & complexity to further a deeper understanding of people’s interests and intent. This increase […]
CWChris Wiltz·March 31, 2026AI & ML 
The Problem: Legacy Tooling and Its Limitations Currently, Slack utilizes a hybrid approach to network measurement, incorporating both internal (such as traffic between AWS Availability Zones) and external (monitoring traffic from the public internet into Slack’s infrastructure) solutions. These tools comprise a combination of commercial SaaS offerings and custom-built network testing solutions de

With the new month just around the corner, could there be a better occasion to freshen up your desktop? If you’re looking for some unique and inspiring wallpapers to accompany you on all those adventures that April may bring — and maybe spark some new ideas, too — well, this post has got you covered.


We are opening our advanced Client-Side Security tools to all users, featuring a new cascading AI detection system. By combining graph neural networks and LLMs, we've reduced false positives by up to 200x while catching sophisticated zero-day exploits.
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Xmflsct, Juan Miguel Cejuela·March 30, 2026Security 
Learn how to secure your projects and keep them safe with GitHub Advanced Security.

Meta is continuing its long-term roadmap to help the construction industry leverage AI to produce high-quality and more sustainable concrete mixes, as well as those exclusively produced in the United States. Concurrent with the 2026 American Concrete Institute (ACI) Spring Convention, Meta is releasing a new AI model for designing concrete mixes – Bayesian Optimization […]

Turborepo 2.9 is up to 96% faster than Turborepo 2.8. Here's how we did it, using coding agents, a human in the loop, and Vercel Sandboxes.

Workflows are now visualized via step diagrams in the dashboard. Here’s how we translate your TypeScript code into a visual representation of the workflow.
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Andre Venceslau, Mia·March 27, 2026Frontend 
Discover some of the interesting features that have landed in stable and beta web browsers during March 2026.

When we investigated why our Atlantis instance took 30 minutes to restart, we discovered a bottleneck in how Kubernetes handles volume permissions. By adjusting the fsGroupChangePolicy, we reduced restart times to 30 seconds.

Looking at research and experiments that are designed to automatically generate user interfaces based on user preferences.

A look at GitHub Actions’ 2026 roadmap, outlining how secure defaults, policy controls, and CI/CD observability harden the software supply chain end to end.
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Greg Ose, Stephen Glass·March 26, 2026Security 
Reviewed advisories hit a four-year low, malware advisories surged, and CNA publishing grew—here’s what changed and what it means for your triage and response.

Success in modern UX isn’t about having the most content. It’s about having the most findable content. Yet even with more data and better tools than ever, internal search often fails, leaving users to rely on global search engines to find a single page on a local site. Why does the “Big Box” still win, and how can we bring users back?

Firefox 149 and Safari 26.4 now allow for querying the @container name only.
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Daniel Schwarz·March 25, 2026Systems 
This is the story of how we built FigCache, a foundational technology that underpins a reimagined internal platform for ephemeral data.

From April 24 onward, interaction data—specifically inputs, outputs, code snippets, and associated context—from Copilot Free, Pro, and Pro+ users will be used to train and improve our AI models unless they opt out.
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Mario Rodriguez·March 25, 2026AI & ML 
We’re introducing Dynamic Workers, which allow you to execute AI-generated code in secure, lightweight isolates. This approach is 100 times faster than traditional containers, enabling millisecond startup times for AI agent sandboxing.


Learn how to integrate the Copilot SDK into a React Native app to generate AI-powered issue summaries, with production patterns for graceful degradation and caching.
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Andrea Griffiths·March 24, 2026AI & ML 
Accessibility works best when it blends into everyday design workflows. The goal isn’t a big transformation, but simple work processes that fit naturally into a team’s routine. With Figma variables, testing font size increases becomes part of the design flow itself, making accessibility feel almost inevitable rather than optional.

Radar now helps prevent free trial abuse with just one click. When enabled, Radar predicts the presence of abusive behavior that violates common trial terms, such as repeated trial signup or missed cancellations, with 90% accuracy.

Cloudflare’s Gen 13 servers double our compute throughput by rethinking the balance between cache and cores. Moving to high-core-count AMD EPYC ™ Turin CPUs, we traded large L3 cache for raw compute density. By running our new Rust-based FL2 stack, we completely mitigated the latency penalty to unlock twice the performance.

Cloudflare's Gen 13 servers introduce AMD EPYC™ Turin 9965 processors and a transition to 100 GbE networking to meet growing traffic demands. In this technical deep dive, we explain the engineering rationale behind each major component selection.

Christian Alder’s sibling-index() color shades one-liner.

The new CSS corner-shape() property is mathematical, so it’s easily animated. Author Daniel Schwarz pokes at animating the property for interesting UI effects.

CodeQL and AI‑powered detections work together in GitHub Code Security to identify vulnerabilities across more languages and frameworks.
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Marcelo Oliveira·March 23, 2026Security 
There is a lil’ UI detail on this blog. Most people don’t even notice it, but the ones who do often reach out, asking how on earth it works. It feels like it defies the rules of CSS! In this blog post, I’ll break down the surprisingly-straightforward implementation so you can start using this trick yourself.


Bramus notes that background-image will soon support the light-dark() function.


The most sophisticated fraud teams are removing friction for trusted users, embedding fraud detection directly into agentic transactions, and investing in multilayered identity verification to combat deepfakes.

Open source file-system and knowledge based agent template. Build AI agents that stay up to date with your knowledge base. Grep, find, and cat across your sources, no embeddings, no vector DB.

Kimi K2.5 is now on Workers AI, helping you power agents entirely on Cloudflare’s Developer Platform. Learn how we optimized our inference stack and reduced inference costs for internal agent use cases.
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Michelle, Kevin Flansburg·March 19, 2026AI & ML 
As contribution volume grows, mentorship signals are harder to read. The 3 Cs framework helps maintainers mentor more strategically… without burning out.

An inside look at repository-native orchestration with GitHub Copilot and the design patterns behind multi-agent workflows that stay inspectable, predictable, and collaborative.
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Brady Gaster·March 19, 2026AI & ML 
How we built a configurable in-store AI experience that any merchant can adapt to their brand.
SEShopify Engineering·March 19, 2026AI & ML 
Introduction 🔔 At Slack, notifications are how teams stay in the loop, but they can also become overwhelming when not designed with intention. Our goal was to make staying informed feel effortless. We set out to rebuild one of Slack’s most complicated systems from the ground up by bringing calm, consistency, and clarity to the…

How to choose between modals and pages, when to avoid modals, and how to determine the right level of interruption or navigation. Brought to you by Smart Interface Design Patterns, a **friendly video course on UX** and design patterns by Vitaly.

Adaptive Pricing now supports subscriptions in 150+ countries, with Stripe handling currency conversion. In an A/B test across 1.5M subscription checkouts, businesses saw 4.7% higher conversion and 5.4% higher LTV per session.


We are expanding Regional Services with new pre-defined regions and the launch of Custom Regions. Customers can now define precise geographical boundaries for data processing, tailored to meet their compliance and performance needs.
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Andrew Berglund, Erik Engstrom·March 18, 2026Performance