回複：請問8老師，在I-140已被批準，I-485還未提交的情況下換雇主，有些什麽風險需要注意？謝謝！

The I-140 is void unless your current employer will hire you back.  Your new employer has to do it all over again, but you can use the current I-140 priority date as the future new I-140 priority date.