Developers can finally use Gemini 4 Argon! Meta's Muse Wonder Full came third on Artificial Analysis' Intelligence Index. Claude Haiku 5.5 and Firefox 158 are out. Then there's Core Web Vitals for single-page apps, browser news, more decision models, Intelligent UI in ChatGPT, Genkit Dart 1.0, and Vercel's storage charges.
Speculation Rules can load the next page before the click, and cross-document View Transitions can animate the swap between two real HTML documents. This is how a static site navigates like a single-page app without shipping one, plus the confidence policy that decides which links earn a prerender.
The two best-known fixes for a slow list solve different problems and cost you different things. Measure which cost you're actually paying, then keep the DOM with content-visibility: auto or drop it with a virtualizer and rebuild the behaviors that disappear with it.
Build a reading-progress page, delete the JavaScript that only paints, and learn which scroll work still belongs to JavaScript.
TypeScript's Go compiler hits RC, Firefox 152 ships field-sizing, Chrome adds scroll-triggered animations, and ariaNotify lands in the ARIA spec. A platform-heavy week.
