Base UI TypeScript Surface

Scope

• Component namespace types (Root.Props, Root.State)
• Event detail and reason types
• useRender/render helpers for custom wrappers

Routing cues

• "TypeScript", "Props type", "State type", "ChangeEventDetails", "ChangeEventReason", "wrapper type", "generic Select" → this skill

Canonical source

• https://base-ui.com/react/handbook/typescript

Maintenance

• Snapshot date: 2026-02-13
• Refresh cadence: quarterly
• Upstream changelog anchor: https://github.com/mui/base-ui/blob/master/CHANGELOG.md

References

• Type patterns and naming
• Wrapper compatibility notes