/**
 * apt-upgrade fix handler.
 * Runs `apt-get update && apt-get upgrade -y` with DEBIAN_FRONTEND=noninteractive
 * via stdin (avoids shell metacharacter issues).
 * No rollback step — system package upgrades are not reversible.
 */
import type { FixHandler } from "./index.js";
export declare const aptUpgradeHandler: FixHandler;
//# sourceMappingURL=aptUpgrade.d.ts.map