export interface UserInstallStamp {
    installed_version: string;
    setup_completed_version?: string;
    install_channel?: 'stable' | 'dev';
    install_source?: string;
    install_revision?: string;
    dev_base_version?: string;
    package_manager?: 'npm' | 'bun';
    updated_at: string;
}
export declare function readUserInstallStamp(path?: string): Promise<UserInstallStamp | null>;
export declare function writeUserInstallStamp(stamp: UserInstallStamp, path?: string): Promise<void>;
export declare function isInstallVersionBump(currentVersion: string | null | undefined, stamp: UserInstallStamp | null): boolean;
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