Another one: browser_console_messages Your agent can read your console logs on its own. Good for catching errors you didn't know were there 😅 Check out the Safari MCP server 👉🏽

Introducing the new Safari MCP server 🎊 Connect your agent directly to a live Safari browser window so it can find bugs and examine the page on its own. Available in Safari Technology Preview 247. Details here 👉🏽 webkit.org/blog/18136/i... Give it a try and let me know what you think ❤️

Celebrate Pride with The Sick Times! Many in-person events aren’t accessible to people with Long COVID and related diseases and disabilities, so join us from home as we will celebrate queer performance art. We’re excited to see you there! ❤️🧡💛💚💙💜🤎🖤 🩵🩷🤍🩷🩵 Register: luma.com/ih0oq3yw?mc_...

This is a great introduction to Grid Lanes. I love how it works well with what we already know about CSS Grid.

My team also did a livestream at WWDC, answering questions from web developers around the world: www.youtube.com/watch?v=LIxZ... #html #css #javascript #webdev

I presented “What’s new in WebKit for Safari 27”. What has my team been up to? Squashing bugs. Paying off technical debt. Updating features where the spec changed & we were out of date. Rearchitecting whole systems to make them better. And more. www.youtube.com/watch?v=7Hg1...

Learn all about how to make masonry layouts on the web in just CSS, using Grid Lanes. In just 10 minutes. www.youtube.com/watch?v=NDwo... #css #webdesign

Want to learn everything about the new <select> element — how to style everything about it + how to customize the content it displays? In just 9.5 minutes? We’ve got you covered: www.youtube.com/watch?v=ACsH... #html #css

Check out all of our WWDC26 videos focused on Safari & Web at www.youtube.com/playlist?lis... #css #html #webdev

This Thursday, @stacykvernmo.com and I will Wing It live, looking at #CSS grid-lanes (now in WebKit/Safari). Neither of us have had a chance to actually play with it yet, and we're excited to see how it works. Come learn with us! youtube.com/live/siSCSaq...

Go @rmondello.com go! It was 4+ years ago I first heard them talk about getting rid of passwords, and it’s so impressive how far Apple, and the whole industry, has come towards that goal! #Identiverse

Icon-only options in a customizable <select> break three things: ❌️ users who don't recognize the icon have no help ❌️screen readers have nothing to announce ❌️browsers w/o support show an empty dropdown There's just 1 fix for all three cases: keep the text Learn more:

Customizable select is so powerful -- it's fully style-able with custom arrows, icons, color swatches, rich option layouts. But to make sure everyone can enjoy it, there’s one rule to follow: always include text in your options. We show you why this rule is so important: webkit.org/blog/18117/t...

The Safari team's reason for opposing Web MCP struck a cord with me. It is something I've struggled to articulate in the past. In fact, their comments contain the seed of a design principle that the W3C should adopt. cloudfour.com/thinks/impro...

WebKit team crushed it this year!

Journal: A tale of two browsers Safari 27 and Chrome 148. 🔗https://adactio.com/journal/22609

Plus, the entire team is really passionate - they all lit up talking about so many things along the way. By the way @jensimmons.bsky.social, I've been reading the Safari release notes this past year and it's consistently amazed me how much is being shipped. Bravo to your team!

This group lab was really good. My takeaways: - they prioritize features based on use cases and the value it provides to users - web performance is an infinite game (never done) - the new <model> element is supported across Apple devices/browsers - spatial CSS is super exciting!

Speaking of Safari team, they put together a fantastic 9 minute video introduction to customizable selects. It's a bite-sized intro that does a great job covering the new syntax. developer.apple.com/videos/play/...

This is a great resource for learning and understanding Grid Lanes. I am already using it on a personal project. This a great scan through resource that can serve as an ongoing reference. Thanks WebKit team! gridlanes.webkit.org

The <select> element has been tough to style for decades. appearance: base-select changes that. We'll walk you through full CSS control, rich HTML options, and keeping it accessible — all while leveraging the power of the native element.

We’ll be live in 52 minutes! (including me!)

Our video covering everything new for web developers in Safari 27 is now up and it's all about ✨quality✨. BUT we got some fun stuff for you too -- Grid Lanes, Customizable Select, the <model> element, and more. Check it out ❤️ developer.apple.com/videos/play/...

Watch our live panel discussion “WWDC26: Safari and Web Technologies Group Lab” today at 5:00pm Pacific. Log in at developer.apple.com (with an Apple Developer account, free accounts work) to ask or upvote questions. www.youtube.com/watch?v=LIxZ...

The Webkit team have been knocking it out of the park with the #CSS articles and guides they've been writing. And this field guide is not only beautiful but will probably become everyone's go-to reference on CSS grid lanes (a.k.a. masonry layout) gridlanes.webkit.org

I thought customizable select would be the biggest news this year. But somehow seeing SVG getting some long missing love by a major browser feels even better. And of course the model tag hits close to home right now. Gonna be a lot of fun ahead.

What’s the web I want? A free space for creative expression. Free from the pressure to conform to the same old same boring factory churn. Remember when the web felt like this? gridlanes.webkit.org #thewebyouwant

Interested in CSS Grid Lanes? We just launched the Field Guide to Grid Lanes! gridlanes.webkit.org It’s got everything you need in a fun interactive playground + tons of demos. (And read about the Field Guide at: webkit.org/blog/18098/i...) #CSSDay #wwdc26 #CSS

Learn all about what my team has been up to this year — how we worked to improve the quality of WebKit. Plus what’s coming in Safari 27: Customizable Select, <model> on iOS, iPadOS & macOS, and much more. I cover highlights in: youtu.be/7Hg1fCrm4yM #css #html #javascript #webdevelopment #wwdc26

If you've run into an issue or are looking for pointers on Web Views on Apple platforms including (e.g. WebView for SwiftUI, or WKWebView) drop by our WWDC26 Q&A: developer.apple.com/forums/activ...

CUSTOMIZABLE SELECT IS IN SAFARI 27!!

What web technology is coming in Safari 27.0? Find out here. webkit.org/blog/17967/n...

What are you hoping to hear my team is up to?

The State of CSS 2026 survey is out! These survey's are a huge signal to the browser makers on what people want, and the more people fill the out, the better that information is. survey.devographics.com/en-US/survey...

Some browsers check what site you're on and render the page differently. Yup, you read that right. TikTok gets special treatment. So does Netflix. Instagram. Even SeatGuru. Safari and Firefox both do this. Chrome doesn't. There's a reason for that... Read on. denodell.com/blog/browser...

Safari 26.5 is here! It includes the :open pseudo-class, the element-scoped keyword for random(), color-interpolation for SVG gradients, the ToggleEvent.source property for popovers, and the Origin API. And a ton of polish and fixes. webkit.org/blog/17938/w...

Dang this is an extremely meaty update to STP. My eyes glazed over reading all the fixes webkit.org/blog/17953/r...

Becoming “obsessed” with Covid in late Jan/early Feb 2020 is not “before the rest of the world” — unless you believe the only country in the world that matters is the U.S. Literally billions of people knew then. Claiming GENIUS for simply watching news from Asia is peak white American superiority.

Name-Only Containers: The Scoping We Needed If we give a `container-name` to the root of all our unique components, we can scope styles to them with a simple @container query.

Using Claude Code feels like playing SimCity.

Safari 26.5 beta is out! Includes: • `:open` pseudo-class for `<details>`, `<dialog>`, `<select>`, and `<input>` elements • `color-interpolation` attribute on SVG gradients, enabling `linearRGB` color spaces • `source` property on `ToggleEvent` • Origin API developer.apple.com/documentatio...

The COVID-19 pandemic is not over, the effects of SARS-CoV-2 are commonly body-destroying in ways we’re barely beginning to understand, and the best way to keep yourself and others safe is to WEAR A MASK.

oh heck yes I don't need to bother fixing this bug now

Safari 26.4 is here! webkit.org/blog/17862/w... Grid Lanes. WebTransport. Keyboard Lock API. And _tons_ of fixes & improvements. Please read the introduction to our article to learn what we’ve been up to…

Safari compact tabs are back 😌 Also, very many quality fixes -- my favorite kind of work.

Nice improvements to scoped custom elements registries!

Grid Lanes!! I can’t wait to use this everywhere

ECMAScript excitement 😉 Safari 26.4 ships support for @tc39.es Stage 4 Iterator.concat 🎉 It creates a new iterator by sequencing existing iterators.

Yessss, name-only container queries shipped! My latest contribution to WebKit 😅😭

Hella cool to see MathML oriented content and demos in WebKit feature highlights!