The lag
30 patternsEvery ARIA pattern against the native primitive that would implement it, dated by Baseline.
The finding. Twelve of thirty patterns have no native primitive at all. The menu button got one in January 2025; the accordion in September 2024; the dialog in 2022, for a pattern that shipped in 1984. The switch, on every phone since 2007, still has none.
Primitive
Datable?
| Pattern | Native primitive | Baseline | Since |
|---|---|---|---|
| Accordion | Mutually exclusive <details> | newly available | 2024-09-03 |
| Alert | aria-live region — no element | no primitive | — |
| Alertdialog | <dialog> | widely available | 2022-03-14 |
| Breadcrumb | nav + ol, no dedicated element | no primitive | — |
| Button | <button> | widely available | 2015-07-29 ⌃ |
| Carousel | assembled; CSS carousel not yet shipped | no primitive | — |
| Checkbox | <input type="checkbox"> | widely available | 2015-07-29 ⌃ |
| Combobox | <datalist> | not Baseline | — |
| Dialog Modal | <dialog> | widely available | 2022-03-14 |
| Disclosure | <details> | widely available | 2020-01-15 |
| Feed | no element | no primitive | — |
| Grid | table is not a grid widget | no primitive | — |
| Landmarks | sectioning elements | widely available | 2015-07-29 ⌃ |
| Link | <a> | widely available | 2015-07-29 ⌃ |
| Listbox | <select> | widely available | 2015-07-29 ⌃ |
| Menu Button | popover attribute | newly available | 2025-01-27 |
| Menubar | no element | no primitive | — |
| Meter | <meter> | widely available | 2018-10-02 |
| Radio | <input type="radio"> | widely available | 2015-07-29 ⌃ |
| Slider | <input type="range"> | widely available | 2017-03-16 |
| Slider Multithumb | no element — range takes one thumb | no primitive | — |
| Spinbutton | <input type="number"> | widely available | 2015-07-29 ⌃ |
| Switch | <input type="checkbox" switch> | not Baseline | — |
| Table | <table> | widely available | 2015-07-29 ⌃ |
| Tabs | no element | no primitive | — |
| Toolbar | no element | no primitive | — |
| Tooltip | anchor positioning | not Baseline | — |
| Treegrid | no element | no primitive | — |
| Treeview | no element | no primitive | — |
| Windowsplitter | no element | no primitive | — |
Source. W3C ARIA Authoring Practices × web-features (Baseline) · W3C Document Licence · CC0 · retrieved 2026-07-31. This collection is derived · two datasets joined.