Jen Simmons

Did you see everything in Safari Technology Preview 234?

WebKit

Release Notes for Safari Technology Preview 234

Safari Technology Preview Release 234 is now available for download for macOS Tahoe and macOS Sequoia.

It’s got a lot of new features including Grid Lanes, Threaded Scroll-driven Animations, seven new Web API, and more. Plus a TON of other improvements & fixes.

Have you been wishing masonry layouts would just hurry up and arrive in CSS?? Well, happy holidays!

WebKit

Introducing CSS Grid Lanes

It’s here, the future of masonry layouts on the web!

Curious about web technology coming to Safari? How about `field-sizing`, `position-visibility`, `random()`, `scrollbar-color`, `hidden=until-found`, auto-expanding `<details>`, `command` & `commandfor`, Largest Contentful Paint, CHIPS, `scrollend` event, Navigation API & much MUCH more!

Apple Developer Documentation

Safari 26.2 Release Notes | Apple Developer Documentation

Released December 12, 2025 — 26.2 (20623.1.14)

I’m surprised I haven’t heard more responses from web developers about the change to Safari on iOS and iPadOS regarding web apps. Now every website can be a web app (saved to the Home Screen and opened as a stand-alone app) — not just sites that have been configured a certain way by the developers. It’s a big difference for users. Every site gets the same experience. No more mysterious sometimes-it-works-one-way, sometimes-another. Read more:

WebKit

WebKit Features in Safari 26.0

We’re happy to share with you what’s arriving in Safari 26.0!

Have you been meaning to learn how to use CSS Subgrid? Here’s a very practical and straightforward how-to from @saron.bsky.social!

WebKit

Subgrid: how to line up elements to your heart’s content

When Grid became widely available across browsers in 2017, it was an absolute game changer.

Covid is highly contagious. It’s airborne. Floats in the air & hangs for hours, like measles. You can show up later & get infected. It’s incredibly damaging to the human body. Especially if you are infected over & over. The vaccines are amazing. And yet, they do not prevent vaccinated people from being infected & contagious. Many infectious people have no symptoms at all. The rapid home tests have an incredibly high rate of false negatives. A negative test does NOT mean you don't have it.

Web developers, I have a question for you. Imagine an idea for a new web technology is proposed. But at least of the browser makers formally objects because of privacy concerns or other reasons. They say "No, we object to this proposal. We will never ship this. Let’s redesign it without these problems." But the other browser disagrees & ships anyway. Should that technology be considered A Web Standard — when 1 or 2 browsers implement & ship, while 1 or 2 browsers Formally Object and say no?