Frontend Weekly Digest #420 (23–29 June 2025)

Web Dev

• PNG has been updated for the first time in 22 years — new spec supports HDR and animation
• A step into the spatial web: The HTML model element in Apple Vision Pro • Live Content Collections: next evolution of content in Astro, bringing real-time data capabilities to the familiar content collections API
• Decoding The SVG path Element: Curve And Arc Commands
• How To Prepare Your API for AI Agents
• ​​How HTML’s <selectedcontent> element improves dropdowns
• A short history of web bots and bot detection techniques

• Tools
  • New in Chrome 138 & Chrome 139 beta
  • ​Vite 7.0 is out!
  • Windsurf university: Learn how to accelerate web development workflows with Windsurf
  • Node.js 24: Your Next Big Frontend Upgrade?
  • Frontend AI: Vercel Abstracts Model Chaos in One Interface
• Performance
  • Performance measurements… and the people who love them
  • How we made CKEditor 40% Smaller: A Deep Dive into Bundle Size Optimization

CSS

• Understanding CSS corner-shape and the Power of the Superellipse
• Quantity Query Carousel
• CSS Blob Recipes
• Lightly Poking at the CSS if() Function in Chrome 137
• Liquid Glass, but in CSS

JavaScripts

• Deno vs Oracle: JavaScript™ Trademark Update
  • What’s coming to JavaScript
  • Ecma International approves ECMAScript 2025: What’s new?
  • ECMAScript 2025 Finalized with Iterator Helpers, Set Methods, RegExp.escape, and More
  • Build a Sentence-Level Reader with JS TTS & Highlights
  • A Better API for the Intersection and Mutation Observers
  • Tips for making regular expressions easier to use in JavaScript
  • Unit Testing in Angular: Modern Testing with Vitest
  • JSON Modules Can Now Be Imported in JavaScript in All Modern Browsers, CSS Modules to Follow
  • JavaScript loops explained, and best practices
  • How to optimize your Next.js app with after()

Memes