Missing Terms Tracker

This file tracks terms that were referenced in cross-links but did not exist in the original curriculum, and have now been officially generated and added.

• Fragments (Level 1)
• Reconciliation (Level 1)
• The Fiber Architecture (Level 1)
• Render Purity (Level 1)
• Automatic Batching (Level 2)
• Lifting State Up (Level 2)
• Derived State (Level 2)
• Stale Closures (Level 3)
• Data Fetching & Race Conditions (Level 3)
• useLayoutEffect (Level 3)
• forwardRef & useImperativeHandle (Level 4)
• Memoization (Level 4)
• Referential Equality (Level 4)
• useId (Level 4)
• Composition over Inheritance (Level 7)
• Compound Components (Level 7)
• Concurrent Rendering (Level 8)
• useTransition (Level 8)
• useDeferredValue (Level 8)
• Bundler & Tree-Shaking (Level 8)
• The React Profiler (Level 8)
• Streaming SSR (Level 10)
• Client vs Server Components (Level 10)
• Server Actions (Level 10)
• useHook (Level 10)
• TypeScript with React (Level 11)
• React Testing Library (Level 11)
• Zustand (Level 11)
• useSyncExternalStore (Level 11)