What's New in React 19 on Scrimba
Quick answer: Free, ~1.1-hour update course with Bob Ziroll. You edit real examples while learning actions, optimistic UI, form status APIs, and use()—so upgrades and interviews feel manageable, not like reading a changelog alone.
Last reviewed: March 2026.
What's New in React 19?
FreeCatch up on React 19: actions, optimistic updates, form statuses, the use() API, and more—in short interactive screencasts.
View on Scrimba (opens in a new tab)The problem
Your team (or a job post) says “we’re on React 19,” but blog posts disagree and you’re not sure how actions, use(), or new form hooks fit your current code. Passive videos do not stick when you need to change package.json with confidence.
Why this course helps
React 19 adds actions, smoother form flows, optimistic updates, and the use() API for promises and context. Bob Ziroll walks through how these pieces fit next to patterns you already use—not RFCs in the abstract. On Scrimba you pause, edit the instructor’s code in the same pane, and run it—closer to how you’ll debug on the job than skimming release notes.
About this course
- Duration: ~1.1 hrs
- Level: Advanced (assumes solid function components and hooks)
- Access: Free — no Pro subscription required
Instructor
Bob Ziroll — same educator as Scrimba’s flagship Learn React and Advanced React courses.
Who this is for
- Best for: Developers who ship React today and want a concise, hands-on tour before upgrading or interviewing.
- Not ideal if: You are still on your first
useStateexamples—finish Learn React first.
Pros and cons (honest take)
| Pros | Cons |
|---|---|
| Free, dense, matches Scrimba’s interactive style | Not a full migration or Next.js RSC course |
| Tied to React 19 APIs employers mention | Too short to replace depth from Advanced React |
| Quick to finish in one or two sittings | Assumes you already think in hooks |
Part of these learning paths
Choose this if
- You want React 19 explained with working examples, not only release notes.
- You have delayed upgrading because
use()and actions felt abstract. - You need the team aligned before a version bump on a real app.
Related courses
Related pages
Yes. It is free on Scrimba—no Pro subscription required.
About 1.1 hours of interactive screencasts. Many learners finish in one or two sessions.
You will understand what changed in React 19 at a high level and how to recognize actions, form hooks, optimistic patterns, and use() in code and docs—not a full production migration playbook.
We may earn a commission if you sign up through our links; it does not change what we say about the course.
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