It actually hasn’t. The api hasn’t been changed. Reddit is such a shit show they didn’t make their own deadline. Apps that didn’t take themselves down in advance still work.

Theres still a wave to come I think.

Cis and trans are terms that came before their application to gender identity. I learned themin organic chemistry in reference to chemical isomers.

Wikipedia: The prefixes “cis” and “trans” are from Latin: “this side of” and “the other side of”, respectively.

As applied to gender, “this side of” you are the gender of the sex you were born as. “The other side of” means you have switched your gender to the other side of the sex from which you were born.

Edit: to answer your question more directly, your gender is cis or trans of the sex you were born as. The question you ask for is: “is your gender cis or trans of your sex?”