wp-admin/includes/class-bulk-upgrader-skin.php:225Resets the properties used in the update process.
public function reset() { $this->in_loop = false; $this->error = false; }Introduced in 3.0.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-bulk-upgrader-skin.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.