
What To Know in JavaScript (2026 Edition) – Frontend Masters Blog
An overview of what's new in language features, frameworks, runtimes, build tools, testing, and more.

Package Managers Need to Cool Down
A survey of dependency cooldown support across package managers and update tools.
Andrew Nesbitt
The Great CSS Expansion
CSS now does what Floating UI, GSAP ScrollTrigger, Framer Motion, and react-select used to require JavaScript for. Here is exactly how much that saves, why these libraries were painful beyond their size, and what the platform still hasn't figured out.
Butler's Log
una.im | Automated accessible text with contrast-color()
Let the browser pick the most readable text color for any background with this new CSS function.

Detect at-rule support in CSS with @supports at-rule(@keyword)
Back in January 2022, I wrote about an exciting new CSS Working Group decision: a function to detect at-rule support using @supports at-rule(@keyword). Fast forward to today, and the CSS Conditional Rules Module Level 5 specification has solidified how this feature works and Chromium (Chrome, Edge, etc.) is about to ship it in Chromium 148!
Bram.us
Temporal: The 9-Year Journey to Fix Time in JavaScript
JavaScript's Date object has been a source of bugs for three decades. Temporal, which just reached Stage 4, is a modern replacement with immutable types, first-class time zone and calendar support, and nanosecond precision. This is the story of how Bloomberg, Igalia, and the TC39 community spent nine years turning an idea into a shipping standard.
Bloomberg JS Blog
Lil' Fun Langs
a pungent monad odor that attracts mathochists

NotebookLM introduit Cinematic Video Overviews pour générer des séquences plus immersives
Les abonnés à Google AI Ultra peuvent désormais générer, depuis NotebookLM, des séquences "uniques et immersives" à partir d'un corpus de documents.
BDM
NotebookLM introduit Cinematic Video Overviews pour générer des séquences plus immersives
Les abonnés à Google AI Ultra peuvent désormais générer, depuis NotebookLM, des séquences "uniques et immersives" à partir d'un corpus de documents.
BDM
Announcing Interop 2026
Exciting news for web developers, designers, and browser enthusiasts alike — Interop 2026 is here, continuing the mission of improving cross-browser interoperability.
WebKit