15.15.0: Reliability fixes for Vite 8, multi-origin tests, and Firefox
Released Released on May 11, 2026
React component specs no longer register every test block twice when using Vite 8, a regression that affected all component testing workflows on the current Vite major. This release also resolves cy.origin() failures after test isolation, adds retry logic for transient Firefox launch failures, and patches two security vulnerabilities in socket.io and uuid.