Mint fixed the security issues. Ubuntu has long term support which is 16.04. There is a middle release which is not LTS labeled 16.10 skip the middle release which is is not LTS. Backup your data before you upgrade only to the LTS will be 17.04. If you need to. If all is working than i would not. You can try a live disc see how it functions.
To see your hardware and what drivers are being used type this in the terminal
sudo lspci - v
This will output a list of hardware and drivers used.
With the middle release is only supported for six months. 16.04 is supported. Only update if it benefits your hardware or to fix a issue like wifi card did not work etc.