It's out of date, possibly by up to 3.5 years. The Sunshine Coast is a reasonably high growth area so all imagery is bound to not cover all the current roads.

For people on the Sunshine Coast that are looking for somewhere to map by GPS I've highlighted a few areas where I can see development was taking place on Yahoo imagery, but there wasn't enough done at the time to be able to map roads from:

osm.wiki/Wikiproject_Queensland#Areas_with_out_of_data_hi-res_imagery