IANAL
The copyright year in the footer is supposed to be the original year that the content was created and does not need an end-year or to be updated as you maintain copyright into the future.
I remember reading information on why not to update the year (if your copyright says 2009 even though you created the content in 2007 then someone could come back and say that they’ve had the content on their site since 2008 which was before you claimed copyright on the materials or the such).