What's new in React 19?

Learn all about the exciting new features coming with React 19, including baked-in ways to handle actions, optimistic updates, form statuses, the new use() API, and more!

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Duration
66 min
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Content
About
What's new in React 19?
React 18 Catch up - useTransition (1)
React 18 Catch up - useTransition (2)
React Compiler
Form action
Error and loading states in React
useActionState() - Part 1
useActionState() - Part 2
useActionState() - Part 3
useOptimistic()
useFormStatus()
refs as props
use()
Misc. improvements - meta tags
Conclusion
Certificate of Completion