The Zcorr application can't be updated to version 1.2 because there is no available update. The official website doesn't exist anymore and the website of the developer is discontinued as well. This means you won't have the possibility to update. Alternatively, check for updates using Help > Check for updates. There was an information on a website saying that the software can be updated using this method, but I believe you will encounter problems since the official website/servers are not online anymore.