v11.8.0

What's Changed

• Add async oncreate support: return a Promise (or thenable) to persist user-created options before they're added; spinner + aria-busy while pending, rejections abort the add #427
• Add virtualList prop for windowed dropdown rendering of large flat option lists (tunable itemHeight/overscan) #427
• Add portal placement param: auto (new default) flips the dropdown above the input when it would overflow the viewport bottom #427
• Fix 19 bugs across MultiSelect, attachments, CmdPalette, CodeExample, and heading-anchors, incl. falsy options (0) unselectable via keyboard, foreign drag-drops corrupting selected, keyboard nav escaping maxOptions, group deselect bypassing minSelect, missing IME composition guard, duplicate options crashing the keyed each, sortable destroying header markup, cross-instance tooltip clearing, and Unicode highlight offsets #427
• Give tooltips a visible theme-aware default border and audit the test suite (~58 redundant tests removed, ~50 regression tests added) #427
• Fix schemeless-page tooltip readability and support partial OptionStyle objects #426
• Fix tooltip, focus, and shortcut edge cases #425
• Fix retain-focus dropdown behavior #424
• Clean up Svelte formatting, types, and low-value tests #422
• Simplify Vite/Svelte setup and tighten tests #421

Full Changelog: v11.7.2...v11.8.0