Keep your React upgrade from breaking concurrent UI.
Guides React upgrades that preserve existing concurrent behavior and defer adopting new APIs until the migration stabilizes.
When to use it
Use during migration from React 18 to React 19 and for adopting new APIs after the migration stabilizes.
It changes how the agent migrates React code by preserving concurrent logic and reviewing changes to files containing concurrent patterns.
What you provide
Applies to a React 18 codebase migrating to React 19, with existing concurrent patterns to preserve.
No additional actions listed.