THESAURUS
up on
abreast of, acquainted with, adept in, at home in, at home with, au courant, briefed, conversant with, educated, enlightened, expert at, familiar with, good at, handy at, informed, informed in, instructed, intimate with, master of, posted, primed, proficient in, schooled, skilled in, strong in, taught, trained, up-to-date, versed, versed in, well
up on, well-read in, well-versed