- New error UI in the Test Runner with expandable stack traces, code highlighting, “Learn more” links, and diff output for retried assertions.
- SameSite cookie attribute support added to cy.setCookie, cy.getCookie(s), cy.request, cy.visit and experimental flag for SameSite handling in yielded cookie objects.
- Numerous bugfixes (installation regression, HTTP header parse errors, Electron warnings, cross‑origin errors, video handling) and security hardening via macOS notarization.
4.3.0
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