import { VersionCheckResult } from './types';
/**
 * Check if current package version is outdated compared to npm registry
 * @param packageName - Package name to check
 * @param currentVersion - Current version string
 * @returns Version comparison result
 */
export declare function checkNpmVersion(packageName: string, currentVersion: string): Promise<VersionCheckResult>;
/**
 * Compare two semver version strings
 * Returns: -1 if v1 < v2, 0 if equal, 1 if v1 > v2
 */
export declare function compareVersions(v1: string, v2: string): number;
/**
 * Print version warning to console if outdated
 */
export declare function warnIfOutdated(packageName: string, result: VersionCheckResult): void;