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Markdown
title: React 19 API Changes
impact: MEDIUM
impactDescription: cleaner component definitions and context usage
tags: react19, refs, context, hooks
## React 19 API Changes
> **⚠️ React 19+ only.** Skip this if you're on React 18 or earlier.
In React 19, `ref` is now a regular prop (no `forwardRef` wrapper needed), and `use()` replaces `useContext()`.
**Incorrect (forwardRef in React 19):**
```tsx
const ComposerInput = forwardRef<TextInput, Props>((props, ref) => {
return <TextInput ref={ref} {...props} />
})
```
**Correct (ref as a regular prop):**
```tsx
function ComposerInput({ ref, ...props }: Props & { ref?: React.Ref<TextInput> }) {
return <TextInput ref={ref} {...props} />
}
```
**Incorrect (useContext in React 19):**
```tsx
const value = useContext(MyContext)
```
**Correct (use instead of useContext):**
```tsx
const value = use(MyContext)
```
`use()` can also be called conditionally, unlike `useContext()`.