From Dec. 28, 2014 till Jan. 5, 2015 both LEED Online v3 (used by LEED 2009 projects) and the new LEED Online (used by LEED v4, Homes, and Campuses) will be down for maintenance.
Then, on Jan. 5, 2015, LEED 2009 projects using BD+C, ID+C and EB:O+M rating systems will be find themselves on the new LEED Online platform, and new LEED 2009 projects will register and use it going forward.