npm / @testing-library/preact
@testing-library/preact
What changed in @testing-library/preact 3, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-24.
1 breaking4 fixes and other
See which of these apply to your code, ranked, in your agent:
npx @unstale/cli init@testing-library/preact 35 changes
Breaking changes 1
Drops the browser export condition that pointed at the ESM build.
Fixes and other changes 4
Fires lowercase event types for Preact 11.
Corrects the type of the wrapper property in RenderOptions.
Types RenderResult.unmount as returning void.
A compatibility change was made to aliases.