I have an iPad pro 9.7 inch which will not get the new update. My questions is: for how long is it safe for me to use my ipad? I only use my ipad for goodnotes, procreate, web browsing, emails, and Google drive. So I'm not downloading various apps, etc... 

How long is my ipad still safe to use? I'm especially worried for my files and folders in Google drive. I don't want to have them deleted by a virus.