The required documents rev 12Jun2008 (EN & ES) for K1/K2 visa for US does not have the I-134, unlike the previous versions. Is it obsolete now?
Instructions for K-1/K-2 Visa Applicants
Instrucciones para los Solicitantes de Visa K-1/K-2
Instructions for K-1/K-2 Visa Applicants
Instrucciones para los Solicitantes de Visa K-1/K-2