Metro Files

• [Breaking]: Widen Resolution union returned by resolvers to allow type: 'virtualModule', pending implementation. (https://github.com/react/metro/commit/8336654cd1416a80898b220102dae89ceef892fe by @robhogan)
• [Feature]: allowOptionalDependencies defaults to true to align with RN and Expo (https://github.com/react/metro/pull/1775 by @robhogan)
• [Fix]: Preserve accumulated and trailing config state when mergeConfig encounters an async config in a config chain (https://github.com/react/metro/pull/1754 by @durvesh1992)
• [Performance] Don't rename require in bundle output, improve cold build time ~5%`(TBD by @robhogan)

NOTE: Experimental features are not covered by semver and can change at any time.

• [Experimental]: experimentalImportSupport: Support namespace re-exports, such as export * as Name from "module" (https://github.com/react/metro/pull/1768 by @robhogan and @krystofwoldrich)
• [Experimental]: experimentalImportSupport: Fix exports renamed by destructuring, and support exports of rest spreads (https://github.com/react/metro/pull/1772 by @robhogan)
• [Experimental]: experimentalImportSupport: Fix precedence so explicit export default and named exports win over export * from (https://github.com/react/metro/pull/1773 by @robhogan)
• [Experimental]: experimentalImportSupport: Evaluate export from dependencies in the module prelude instead of within or after the module body (https://github.com/react/metro/pull/1774 by @robhogan)

Full Changelog: https://github.com/react/metro/compare/v0.86.0...v0.87.0