Box UI Elements (BUIE) now supports React 19, keeping BUIE aligned with the latest front-end stack so you can continue building modern integrations with the Intelligent Content Cloud.
Developers who choose to remain on React 18 can continue to update to the latest BUIE version, as React 18 remains supported.
Developers upgrading to React 19 should follow the official React migration guide, and then update the BUIE package.
Note: React 17 is no longer supported.