Mojang announces a delay to Cobalt, saying this platformer they are publishing is feature complete, but instead of releasing it this week as planned, they are delaying it until February for further polish. This video has a humorous look at the news, and here's word:

We’ve been working on Cobalt for a long time and, though the game is feature complete, our current build is buggier than we’re comfortable with. We want every part of Cobalt – the campaign, challenges, and local and online multiplayer to live up to your expectations, no matter which platform you play it on. That’s going to require a bit more development time.

In honesty, we don’t need four months to fix the outstanding issues, but releasing a game on console is an especially complicated business. There are release windows, and certification things, and all kinds of boxes that need to be ticked before games can be released into the wild.