Verified against the API on 24 July 2026
What clears next
Widely available means exactly 30 months after a feature became newly available. No committee, no usage threshold, just arithmetic. So the list of features you will be able to stop worrying about is already fixed, and here it is through July 2027.
This is the spine of the publication. Every month, half of the issue’s candidates come from this table, which is why a quiet month for new features is still a full issue.
Two caveats, stated up front
A feature’s newly-available date is occasionally revised when the underlying data is corrected, and a feature can lose its status if a browser pulls support. So this is a firm draft, not a promise, and I re-query every month before I write about it.
- Aug 2026from Feb 2024
Declarative shadow DOM
Server-rendered shadow roots with no script to attach them.
- Sep 2026from Mar 2024
white-space-collapse·paint-orderBoth need a caveat paragraph:
white-space-collapsescores 0.70 or below on every browser. - Oct 2026from Apr 2024
align-contentin block layouts · vertical form controlsalign-content-blockremoves a flexbox wrapper used purely for centring, but test scores split 0.45 to 0.95 across browsers. - Nov 2026from May 2024
light-dark()·text-wrap: balance·round(),mod(),rem()·:state()The strongest month in the window. Four features, four real deletions.
- Dec 2026from Jun 2024
Gradient interpolation
Clean scores everywhere, so no caveat needed.
- Jan 2027from Jul 2024
Alt text for generated content ·
font-size-adjustThe first one is Hold-shaped: three browsers score 0 despite the label.
- Feb 2027from Aug 2024
@starting-style·transition-behaviorTogether, these are what let you animate
displaywithout a JavaScript timing hack. - Mar 2027from Sep 2024
backdrop-filter· relative colors · mutually exclusive<details>details-namedeletes an accordion script outright. - Apr 2027from Oct 2024
text-wrap·requestVideoFrameCallback()text-wrapscores a perfect 1 on every browser. - May 2027from Nov 2024
Nothing
Nothing became newly available in November 2024, so nothing clears. The issue will say so in two sentences.
- Jun 2027from Dec 2024
Page setup
Weakly implemented. Probably a Hold, whatever the date says.
- Jul 2027from Jan 2025
Popover
The biggest deletion in the whole window: a popover library, plus the focus management and dismissal code around it.
Get the issue that covers it
Each of these gets written up in the month it clears, with the test data checked and a verdict attached. One email a month.
Check your inbox. Click the confirmation link and you’re in — first issue Monday 3 August at 6:40 a.m. Pacific.