/**
 * Refresh the update cache in a silent detached worker for future runs.
 * The worker never writes to the terminal (stdio is always ignored), so it
 * cannot interleave output with the parent CLI.
 */
export declare function startUpdateCheckWorker(): void;
/**
 * Run the update check: notify any cached update from the parent process
 * then refresh the cache in the background.
 * Every step is best-effort: an update-check failure must never take down
 * the CLI itself.
 */
export declare function runUpdateCheck(currentVersion: string): Promise<void>;
//# sourceMappingURL=updateCheck.d.ts.map