Latest React Skill

Comprehensive knowledge of React features released from mid-2024 through 2026, focusing on React 19 (released December 2024, latest v19.2+), React Compiler (RC April 2025), and supporting ecosystem changes.

Official Resources

• React v19 Official Announcement
• React Versions
• React 19 Upgrade Guide
• React 19.2 Release

Major Features by Category

1. New Hooks (React 19)

useActionState

Manages state for asynchronous actions, particularly useful for form submissions and mutations.