As is usually the case, you can use Google Maps to determine for sure whether or not a specific area is fresh. This new imagery isn't in Google Maps yet, so you can compare Earth vs. Maps to see what's new; the fresh imagery is already in Google Earth, but the old imagery is still in Google Maps. If you compare the two side-by-side and they're not identical, that means that you've found a freshly updated area in Google Earth!
[UPDATED - 18-May, 9:40pm EST]
- Australia: Helensburgh -- thanks 'Pete'
- China: Lushun, Xiaopingdao -- thanks 'Munden'
- Greece: Khania -- thanks 'Munden'
- Hungary: Batonyterenya, Paszto -- thanks 'eHOG'
- Iceland: Selfoss -- thanks 'Noel'
- India: Pallimukku -- thanks 'Munden'
- Japan: Kamijima, Sanuki, Minamiawaji -- thanks 'Munden'
- Norway: Various areas -- thanks 'Munden'
- Portugal: Castelo Branco -- thanks 'lain'
- Romania: Various areas -- thanks 'cristi'
- Russia: Severodvinsk -- thanks 'Munden'
- United States: Alaska (Anchorage), Florida (Broward, Miami, Palm Beach), Michigan (Grand Rapids), New York (Buffalo), North Carolina (Hickory), Texas (Dallas), Virginia (Lynchburg) -- thanks 'Brian', 'ChrisK', 'GT", 'Munden' and 'toyle'