The current version of FutureTax 2024 for NETFILE is 20.0.7.323 (in "Help" > "Softward ID/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):
[Figure 1]
If you are unable to update, just download the software and reinstall it.
Please note the update operations won't erase any of your tax return files and license information.