wp-admin/includes/schema.php:930Create and modify WordPress roles for WordPress 2.7.
function populate_roles_270() { $role = get_role( 'administrator' ); if ( ! empty( $role ) ) { $role->add_cap( 'install_plugins' ); $role->add_cap( 'update_themes' ); }}Introduced in 2.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/schema.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.