Lufthansa has updated their Winter 17/18 timetable to reflect an increase of A350 use between Munich and Boston. Before this update, LH planned to send the A350 to Boston only on Mondays, Tuesdays, Thursdays, and Fridays.
With the latest update, the A350 will now fly daily between Munich and Boston at least for February and March. So between February 3 and March 28, passengers will be able to enjoy the newest aircraft type in the fleet.
As it stands now the A350 will still fly the route daily from October 29 to December 1, but for the height of the holiday season in December and January, the A346 will do the heavy lifting on Saturdays, Sundays, and Wednesdays.