interface CacheData {
    lastCheck: number;
    latestVersion: string;
    currentVersion: string;
    updateAvailable: boolean;
}
/**
 * Get cache file path for storing update check results
 */
export declare function getCachePath(): string;
/**
 * Read cached update information
 */
export declare function readCache(): CacheData | null;
/**
 * Write update information to cache
 */
export declare function writeCache(data: CacheData): void;
export declare const getCache: typeof readCache;
export declare const setCache: typeof writeCache;
export declare function clearCache(): void;
export type { CacheData };
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