I am in the process of transitioning a fairly sizable website to https. However, I have found different information regarding site maps.
Should I switch my site map to https BEFORE I launch https?
Should I switch my site may to https AFTER I launch https?
Should I have two site maps (one with http protocols and the other with https)?
I am very concerned with a possible hit to SEO after https goes live so any and all suggestions would be appreciated!