1/1 criteria met · 100% coverage
The Linear issue describes a bug where `lint/suspicious/useIterableCallbackReturn` prevents explicitly returning `undefined` via `return;` in iterable callbacks. The PR implements an `allowImplicit` option that, when enabled, allows callbacks to use `return;` to implicitly return `undefined`, matching ESLint's `array-callback-return` behavior. The implementation includes the rule option in `biome_rule_options`, the logic change in the rule itself, ESLint migration support, tests for both valid and invalid cases, and schema/TypeScript type updates. The only formal acceptance criterion listed is the Code of Conduct agreement, which is satisfied by the PR submission process.