There won't be any further additions to the XBOX One's backwards compatibility catalog this year.
Microsoft's Major Nelson confirmed this on Twitter. He said the six games that arrived on December 15 were the last ones of 2016. The backwards compatibility team is taking a breather for the holidays, Major Nelson confirmed, adding that fans can expect releases to resume in the New Year.
Earlier this week, XBOX boss Phil Spencer teased January's backwards compatibility lineup, saying it "looks pretty good," though he didn't name any titles outright.
The XBOX One's backwards compatibility program, which launched in November 2015, now has more than 300 games in it. Earlier this month, all the core BioShock games joined the catalog, while Bully, Catherine, and Raskulls more recently joined the lineup. You can see a list of all the backwards compatibility games here.
In other news, Spencer recently said nearly half of all Xbox One owners have used backwards compatibility. Collectively, people have spent more than 210 million hours playing Xbox 360 games on Xbox One.