[malberts]

Bootstrap 5.3.9 adds a .modal-xxl modal size, turns off the placeholder animations under prefers-reduced-motion, and fixes carousel touch handling, ScrollSpy smooth scrolling from nested link content, and tooltip and popover text from data-bs-title/data-bs-content being converted to non-string values. Popper stays at 2.11.8. Upstream notes: https://github.com/twbs/bootstrap/releases/tag/v5.3.9

Human input

Goal and shape: set by @malberts (upgrade to 5.3.9 following the existing upgrade pattern, then check whether Chameleon needs changes); Claude did the upgrade within that.

Outcome: not reviewed by a human yet. Left for you: a skim of the vendored diff.

Claude's calls

• Not discussed with @malberts: the release-notes entry is filed under 6.0.1, matching how the 4.6.2 upgrade went into a patch release; extension.json keeps 6.0.0 until the release commit, as before.
• Not verified: the JS changes in a browser.

Verification evidence

• resources/bootstrap regenerated with npm install from the bootstrap 5.3.9 npm package; the diff is limited to upstream's changes plus the version banner.
• Chameleon (origin/master) SCSS compiled with scssphp 1.x against the 5.3.8 and 5.3.9 trees, both without errors. The compiled CSS differs only in the banner, the .modal-xxl rules, the reduced-motion placeholder rules and the ::-webkit-datetime-edit-minute-field selector.

_{AI-authored: Claude Code, Opus 5.5, on a Professional Wiki account}