I have an approved H4 till September 2022.
My spouse changed the employee and now I have a new H4 visa till October 2023 (yet to receive the i797 for this.
My question is - what happens to my old H4 and i94? Does it become invalid?
I am currently in Canada and plan to travel back using avr and have the old approved i797 (valid till sept 2022) with me.