I upgraded on iPad and iPhone. No apparent upgrade mishaps. You can buy a Grand Hotel for 300 silver tokens, which costs 20 electricity and 6 days to build on a 3x3 piece of land. It yields +300 population and pays out 520 coins every 3 days. There is a new collection "Tale of Bygone Years" ine the adventure tab. Requires flights to 5 Eastern Europe destinations, and awards large bronze chest each collection, with a Winter Palace given for 6 collections. Maps can be bought in the airship store for the Excavations: Eastern Europe flight with the largest plane that requires 50 fuel and 500 passengers. LtCol Rehab (may show as "username") - need router x4, smart glass x4, L8 town hall items. LtColRehab2 - need VoIP phone x3, laundry construction items, thanks all!