During CLEF 2012 in Rome, Italy, it has been decided to re-schedule the overall yearly cycle of CLEF in order to allow for having a single publication reporting both the conference papers and the labs overview ready by and delivered at the annual CLEF meeting.
Information about the new CLEF schedule are available at:
CLEF Plans and New Schedule (http://www.clef-initiative.eu/documents/71612/afbd989d-06fb-418c-a7d1-a8e84280131d).