Changelog

What changed, and when.

Every released version of the tabset extension, and what each one changed.

1

fix: Group the attributes in _schema.yml under the elements they are written on, rather than listing them flat, so editors read them as attributes rather than as element groups. Describe them as tab-active and tabset-skip-pdf-clone, the shorter authored spellings the documentation uses, rather than the data- prefixed spellings Pandoc emits; both are accepted and render identically. Target the Quarto Wizard v2 extension schema.

docs: Add a documentation website under docs/, built on the atelier project type and published to https://m.canouil.dev/quarto-revealjs-tabset/, including a deck to step through.
docs: Trim README.md to a landing page pointing at the website.
docs: Add the Pages workflow, which renders docs/ on pull requests and deploys it from the release tag.
docs: Add the Quarto Extensions Updates workflow, scanning docs for the website’s own dependencies.

feat: Add ARIA roles (tablist, tab, tabpanel) and a presentation role on tab list items at initialisation, so assistive technology recognises the tabset structure.
feat: Honour data-tab-active="N" on a .panel-tabset to set the initial active tab (zero-based, out-of-range values fall back to 0).
feat: Honour data-tabset-skip-pdf-clone on a slide <section> to opt that slide out of per-tab PDF cloning; the first tab renders as a single PDF page.

fix: Strip element id attributes from cloned slides during PDF export so nested tabsets and other ID-bearing elements do not produce duplicate IDs in the document.
fix: Use an explicit default for config.pdfSeparateFragments (!== false) so the cloning path runs only when Reveal.js or the document has explicitly disabled fragment splitting.
fix: Validate data-tab-index values against the tab count before clicking, so a stray index cannot click a missing element.
fix: Warn and skip when a .panel-tabset contains zero tabs instead of failing silently downstream.

feat: Automatically clone tabset slides for PDF export so each tab appears on its own page without requiring pdf-separate-fragments: true globally.

fix: Add aria-hidden="true" to invisible fragment trigger divs for screen reader compatibility.
fix: Toggle hidden attribute on tab panels during PDF export for proper accessibility semantics.
fix: Guard against malformed tab index values in fragment and PDF export handlers.