Nothing new for the Red Sox, but a truckload of anniversary seasons around the Majors
http://www.espn.com/mlb/story/_/id/22870785/the-2018-uni-watch-mlb-preview-every-commemorative-patch-every-color-change-more
http://www.espn.com/mlb/story/_/id/22870785/the-2018-uni-watch-mlb-preview-every-commemorative-patch-every-color-change-more