The owners and the MLBPA came to an agreement, and there is a new 5-year collective bargaining agreement. Baseball is about to change some.
The winning league of the all-star game no longer gets homefield advantage in the World Series. It now goes to the team with the best record. This is a great change.
The 15-day DL is now the 10-day DL. This is a very good change as well, and a boon for the players.
The regular season will be lengthened by 5 days, to give more off days. I think this is a slightly bad thing for fans (would have preferred 2 or 3 days), but it's better for the players and probably slightly better for quality.