new launcher dons't let me open Minecraft in offline mode

new launcher dons't let me open Minecraft in offline mode! I stayed 1 week and I didn't find an answer to fix!!!!!! you guys from mojang or idk, who did this update are really bad... how is that an good update? .... any fix? how can I go back to the old launcher? Trust me the old one is more better... I'm pretty 100% sure...