Happy New Year, NBA.

The 72nd regular season starts Tuesday night, when Boston heads to Cleveland and Houston goes to Golden State. Fans in Cleveland will boo Kyrie Irving, fans in Oakland will cheer the Warriors' latest championship banner, and the march toward April will finally be underway.

The offseason was loaded with changes. Carmelo Anthony and Paul George went to Oklahoma City, Gordon Hayward and Irving went to Boston, Isaiah Thomas got sent to Cleveland, Jimmy Butler is now in Minnesota and Paul Millsap calls Denver home. That's seven All-Stars who moved, a record for an NBA offseason.

Every coach who started last season will start this season. That's an NBA first.

Click through the photos above for the 10 things to know about the NBA season that is finally here.

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