- Added support for custom expect matchers and merging them across files
- Enabled merging of test fixtures from multiple modules
- Introduced boxed test steps for clearer error locations and a new expect(locator).toHaveAttribute API
v1.39.0
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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.