Current. Although it was already in my Epic library so likely it was in a previous week sometime in the past.

You can bookmark this page if you like, it’s updated each Thursday when the new games are swapped in.

EDIT: I forgot they also have the history in the bottom part of the page I shared. Looks like the first time they gave it away was December 27 last year, but it was only up for a day, not a week (the couple of weeks around Christmas, they shift to daily instead of weekly giveaway). So this will be the first free full week for it.