- Added expect(locator).toContainClass() and new Aria Snapshot properties (/children, /url).
- Introduced testProject.workers, testConfig.failOnFlakyTests, testResult.annotations, maxRedirects option, and NOT filtering in HTML reporter.
- Breaking changes: glob URL patterns no longer support '?' or '[]' wildcards, route.continue() cannot override Cookie header, and macOS 13 is deprecated.
v1.52.0
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Fix regression where tsconfig "extends" bare specifiers weren’t resolved via node_modules walk-up, breaking builds since 1.62
Component testing shifts to a story/gallery model with a new fixtures.mount() API for scoped locators and type‑checked props.