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The current version of FutureTax T2 2016.2 is 18.104.22.1688 (in "Help" > "About FutureTax" menu).
Normally FutureTax will update itself when your Internet is connected; you can also update your version of FutureTax manually by clicking "Help" > "Check for Updates" (please see figure 1):
If you are unable to update, just download the software and reinstall it again.
1. The update operations won't erase any of your tax return files and license information.
2. The update works for the subversions of one release version. It doesn't update previous release versions. For example, you can update all changes for FutureTax T2 2016.2. But if you installed version 2016.1 or 2015.2 etc, you cannot upgrade it to 2016.2. Please download and install version 2016.2.