Chakra UI v2 and React 18 Concurrent Mode Integration Compatibility

Goal

Determine whether Chakra UI v2's internal state management and component lifecycle handling are fully compatible with React 18's concurrent rendering features, particularly startTransition and automatic batching.

Constraints and Uncertainty

Chakra UI v2 officially requires React 18, but the library's support for concurrent features remains partially experimental. Modal and Form components have exhibited timing inconsistencies when interacting with React 18's automatic batching behavior. Custom hook integrations may conflict with Chakra's internal state management during concurrent mode transitions. Additionally, server-side rendering hydration mismatches occur with Chakra's color mode provider in React 18 strict mode.

Specific Questions

• Does Chakra UI v2's useToken hook behavior change between React 18 minor versions in ways that create breaking changes in theme implementations?
• Can developers safely use React 18's startTransition and useDeferredValue with Chakra UI components without encountering state synchronization issues?
• What specific Chakra UI components or patterns are known to trigger hydration mismatches during SSR with React 18 strict mode?