export declare function fetchLatestVersion(): Promise<string | null>;
export declare function getGlobalInstalledVersion(): Promise<string | null>;
export declare function getLocalInstalledVersion(cwd: string): Promise<string | null>;
export declare function updateGlobal(): Promise<void>;
export declare function updateLocal(cwd: string): Promise<void>;
export declare function isOutdated(current: string, latest: string): boolean;