My Apple ipad software is currently at 14.something. Keep getting asked to update to 15.6.1. and now (15.7). Was wary of 15.6.1. as 1. It puts all same data across all devices (I wanted to keep mine separate). 2. Then came the hack alert followed by gov. advice to upgrade. That really gave me pause. 3. Am now finding items I want but they require the update to allow them. What do you recommend re the updates please?