Get your taxes done using TurboTax

Hello TT, been using TT for about 10 yrs. now and I always wondered WHEN TT can be finally used for tax returns because every time I sign in to TT it does updates. So, when is it safe to finally do your taxes to make sure all tax info has been updated in TT software?

Just like this last update that announced that CRITICAL updates were installed in program.  If I already used TT to prepare my tax forms will I have to start over?