25B6; adjective
up-to-date equipment : MODERN, contemporary, the latest, state-of-the-art, new, present-day, up to the minute; advanced; informal bang up to date, mod.
the newsletter will keep you up to date : INFORMED, up to speed, in the picture, in touch, au fait, au courant, conversant, familiar, knowledgeable, acquainted, aware.
out of date, old-fashioned.