- From: Rick Viscomi <rviscomi@google.com>
- Date: Thu, 19 Feb 2026 08:52:31 -0500
- To: public-webdx@w3.org
- Message-ID: <CAK1hOvSY4P2CnAgK+Rmrkjc4y1ostLO2pSAgvrY8=f0C+Hbsgg@mail.gmail.com>
The AI summary was missing from the original email. Here it is: JPEG XL continues to lead developer interest with 12 new upvotes, while Temporal and Anchor positioning maintain their steady momentum as top-tier priorities. New feedback for the attr() function and @function suggests these features are critical for reducing CSS boilerplate and managing dynamic anchor-name values without compromising CSP through inline styles. Notable activity from Airbnb developers across Masonry, shape(), and Element-scoped view transitions underscores a demand for more sophisticated layout and motion primitives. Meanwhile, hidden="until-found" sparked a technical discussion regarding its implementation, with developers noting that the transition of the hidden property from a boolean to a union type has introduced breaking changes in TypeScript codebases. On Thu, Feb 19, 2026 at 8:26 AM <rviscomi@google.com> wrote: > WebDX CG developer-signals weekly digest > > web-platform-dx/developer-signals > <https://github.com/web-platform-dx/developer-signals/issues?q=is%3Aissue%20label%3Afeature%20sort%3Areactions-%2B1-desc> > > *This is an automated email summarizing recent activity on the > developer-signals repo, which is where web developers add their support for > web features that are not yet implemented in all major browsers.* > 1 closed feature (became Baseline Newly Available) > > - Zstandard compression (#232) > <https://github.com/web-platform-dx/developer-signals/issues/232> > > 10 newly created features > > - <meta name="text-scale"> (#517) > <https://github.com/web-platform-dx/developer-signals/issues/517> > - Web app manifest localization (#516) > <https://github.com/web-platform-dx/developer-signals/issues/516> > - <geolocation> (#515) > <https://github.com/web-platform-dx/developer-signals/issues/515> > - random() (#514) > <https://github.com/web-platform-dx/developer-signals/issues/514> > - Digital credentials (#513) > <https://github.com/web-platform-dx/developer-signals/issues/513> > - Translator (#512) > <https://github.com/web-platform-dx/developer-signals/issues/512> > - Language detector (#511) > <https://github.com/web-platform-dx/developer-signals/issues/511> > - Capture Handle (#510) > <https://github.com/web-platform-dx/developer-signals/issues/510> > - filter() (#509) > <https://github.com/web-platform-dx/developer-signals/issues/509> > - display-mode media query (#508) > <https://github.com/web-platform-dx/developer-signals/issues/508> > > 72 active features > > - JPEG XL (#215) > <https://github.com/web-platform-dx/developer-signals/issues/215> > - 👍 *+12* > - Temporal (#291) > <https://github.com/web-platform-dx/developer-signals/issues/291> > - 👍 *+7* > - Masonry (#308) > <https://github.com/web-platform-dx/developer-signals/issues/308> > - 👍 *+6* > - Anchor positioning (#245) > <https://github.com/web-platform-dx/developer-signals/issues/245> > - 👍 *+5* > - @function (#300) > <https://github.com/web-platform-dx/developer-signals/issues/300> > - 👍 *+4* > - 💬 *+1* > - "## What I'm having to do in the meantime In my design system, I > have plenty of functions fr color palettes and sizing-scales, which use > cus..." (@andreasputlitz) > - attr() (#293) > <https://github.com/web-platform-dx/developer-signals/issues/293> > - 👍 *+4* > - 💬 *+1* > - "## What I want to do with this feature <!-- Add your specific > use-cases, even if they seem obvious to you. --> We're building a set of UI > ..." (@hfournier) > - calc-size() (#252) > <https://github.com/web-platform-dx/developer-signals/issues/252> > - 👍 *+4* > - 💬 *+1* > - "## What I want to do with this feature I want to be able to > animate a `<details>` being opened, not knowing the height of the content > in it..." (@aarfing) > - sibling-count() and sibling-index() (#361) > <https://github.com/web-platform-dx/developer-signals/issues/361> > - 👍 *+4* > - scroll-target-group (#475) > <https://github.com/web-platform-dx/developer-signals/issues/475> > - 👍 *+3* > - Anchor position container queries (#466) > <https://github.com/web-platform-dx/developer-signals/issues/466> > - 👍 *+3* > - Interest invokers (#464) > <https://github.com/web-platform-dx/developer-signals/issues/464> > - 👍 *+3* > - shape() (#443) > <https://github.com/web-platform-dx/developer-signals/issues/443> > - 👍 *+3* > - justify-self in block layouts (#442) > <https://github.com/web-platform-dx/developer-signals/issues/442> > - 👍 *+3* > - Container scroll-state queries (#272) > <https://github.com/web-platform-dx/developer-signals/issues/272> > - 👍 *+3* > - Element-scoped view transitions (#496) > <https://github.com/web-platform-dx/developer-signals/issues/496> > - 👍 *+2* > - Range syntax for style queries (#465) > <https://github.com/web-platform-dx/developer-signals/issues/465> > - 👍 *+2* > - scrollIntoView() container (#463) > <https://github.com/web-platform-dx/developer-signals/issues/463> > - 👍 *+2* > - ToggleEvent source (#462) > <https://github.com/web-platform-dx/developer-signals/issues/462> > - 👍 *+2* > - Custom media queries (#445) > <https://github.com/web-platform-dx/developer-signals/issues/445> > - 👍 *+2* > - corner-shape (#398) > <https://github.com/web-platform-dx/developer-signals/issues/398> > - 👍 *+2* > - :open (#310) > <https://github.com/web-platform-dx/developer-signals/issues/310> > - 👍 *+2* > - if() (#303) > <https://github.com/web-platform-dx/developer-signals/issues/303> > - 👍 *+2* > - reading-flow (#290) > <https://github.com/web-platform-dx/developer-signals/issues/290> > - 👍 *+2* > - Scroll markers (#289) > <https://github.com/web-platform-dx/developer-signals/issues/289> > - 👍 *+2* > - <dialog closedby> (#279) > <https://github.com/web-platform-dx/developer-signals/issues/279> > - 👍 *+2* > - Customizable <select> (#278) > <https://github.com/web-platform-dx/developer-signals/issues/278> > - 👍 *+2* > - moveBefore() (#273) > <https://github.com/web-platform-dx/developer-signals/issues/273> > - 👍 *+2* > - line-clamp (#267) > <https://github.com/web-platform-dx/developer-signals/issues/267> > - 👍 *+2* > - text-box (#265) > <https://github.com/web-platform-dx/developer-signals/issues/265> > - 👍 *+2* > - interpolate-size (#253) > <https://github.com/web-platform-dx/developer-signals/issues/253> > - 👍 *+2* > - <img sizes="auto" loading="lazy"> (#250) > <https://github.com/web-platform-dx/developer-signals/issues/250> > - 👍 *+2* > - Cross-document view transitions (#248) > <https://github.com/web-platform-dx/developer-signals/issues/248> > - 👍 *+2* > - field-sizing (#234) > <https://github.com/web-platform-dx/developer-signals/issues/234> > - 👍 *+2* > - CSS import attributes (#233) > <https://github.com/web-platform-dx/developer-signals/issues/233> > - 👍 *+2* > - text-wrap: pretty (#212) > <https://github.com/web-platform-dx/developer-signals/issues/212> > - 👍 *+2* > - Container style queries (#196) > <https://github.com/web-platform-dx/developer-signals/issues/196> > - 👍 *+2* > - :autofill (#500) > <https://github.com/web-platform-dx/developer-signals/issues/500> > - 👍 *+1* > - background-attachment (#498) > <https://github.com/web-platform-dx/developer-signals/issues/498> > - 👍 *+1* > - navigator.install() (#467) > <https://github.com/web-platform-dx/developer-signals/issues/467> > - 👍 *+1* > - at-rule() (#447) > <https://github.com/web-platform-dx/developer-signals/issues/447> > - 👍 *+1* > - Map getOrInsert() (#399) > <https://github.com/web-platform-dx/developer-signals/issues/399> > - 👍 *+1* > - Viewport segments (#382) > <https://github.com/web-platform-dx/developer-signals/issues/382> > - 👍 *+1* > - prefers-reduced-data media query (#314) > <https://github.com/web-platform-dx/developer-signals/issues/314> > - 👍 *+1* > - overflow-clip-margin (#311) > <https://github.com/web-platform-dx/developer-signals/issues/311> > - 👍 *+1* > - <link rel="prefetch"> (#306) > <https://github.com/web-platform-dx/developer-signals/issues/306> > - 👍 *+1* > - interactivity (#305) > <https://github.com/web-platform-dx/developer-signals/issues/305> > - 👍 *+1* > - image() (#304) > <https://github.com/web-platform-dx/developer-signals/issues/304> > - 👍 *+1* > - display: contents (#296) > <https://github.com/web-platform-dx/developer-signals/issues/296> > - 👍 *+1* > - contrast-color() (#295) > <https://github.com/web-platform-dx/developer-signals/issues/295> > - 👍 *+1* > - :has-slotted (#276) > <https://github.com/web-platform-dx/developer-signals/issues/276> > - 👍 *+1* > - popover="hint" (#274) > <https://github.com/web-platform-dx/developer-signals/issues/274> > - 👍 *+1* > - background-clip: border-area (#266) > <https://github.com/web-platform-dx/developer-signals/issues/266> > - 👍 *+1* > - Document picture-in-picture (#260) > <https://github.com/web-platform-dx/developer-signals/issues/260> > - 👍 *+1* > - Compression Dictionary Transport (#258) > <https://github.com/web-platform-dx/developer-signals/issues/258> > - 👍 *+1* > - Scroll snap events (#255) > <https://github.com/web-platform-dx/developer-signals/issues/255> > - 👍 *+1* > - overlay (#211) > <https://github.com/web-platform-dx/developer-signals/issues/211> > - 👍 *+1* > - Scroll-driven animations (#207) > <https://github.com/web-platform-dx/developer-signals/issues/207> > - 👍 *+1* > - WebGPU (#202) > <https://github.com/web-platform-dx/developer-signals/issues/202> > - 👍 *+1* > - blocking="render" (#180) > <https://github.com/web-platform-dx/developer-signals/issues/180> > - 👍 *+1* > - Media element pseudo-classes (#166) > <https://github.com/web-platform-dx/developer-signals/issues/166> > - 👍 *+1* > - Virtual keyboard (#153) > <https://github.com/web-platform-dx/developer-signals/issues/153> > - 👍 *+1* > - accent-color (#146) > <https://github.com/web-platform-dx/developer-signals/issues/146> > - 👍 *+1* > - <meta name="theme-color"> (#145) > <https://github.com/web-platform-dx/developer-signals/issues/145> > - 👍 *+1* > - Cookie store (#135) > <https://github.com/web-platform-dx/developer-signals/issues/135> > - 👍 *+1* > - ::marker (#128) > <https://github.com/web-platform-dx/developer-signals/issues/128> > - 👍 *+1* > - Trusted types (#118) > <https://github.com/web-platform-dx/developer-signals/issues/118> > - 👍 *+1* > - CSS typed object model (#85) > <https://github.com/web-platform-dx/developer-signals/issues/85> > - 👍 *+1* > - Fetch upload streams (#83) > <https://github.com/web-platform-dx/developer-signals/issues/83> > - 👍 *+1* > - paint() (#80) > <https://github.com/web-platform-dx/developer-signals/issues/80> > - 👍 *+1* > - box-decoration-break (#41) > <https://github.com/web-platform-dx/developer-signals/issues/41> > - 👍 *+1* > - Widows and orphans (#11) > <https://github.com/web-platform-dx/developer-signals/issues/11> > - 👍 *+1* > - hidden="until-found" (#170) > <https://github.com/web-platform-dx/developer-signals/issues/170> > - 💬 *+4* > - "Recently found out about this feature in the form of new TS > compiler errors in the Chromium codebase, due to the following update in > Typescr..." (@freshp86) > - "That is not a Chromium specific change. It was discussed in > WhatWG, and it is shipping also in Gecko > https://searchfox.org/firefox-main/rev/..." (@smaug----) > - "Thanks for the links. I know this is not a Chromium-only change, > I was just refering to Chromium's TS codebase which is affected by this as > ..." (@freshp86) > - "Sorry to hear that this is causing issues, I admit that I didn't > foresee this becoming a pain point. I think that replacing > `assertFalse(bu..." (@josepharhar) > > Activity since 2026-02-12 >
Received on Thursday, 19 February 2026 13:53:13 UTC