Apple released OS X and iOS updates today with a little more verbosity than they have in recent years. Yosemite 10.10.2 includes a Wi-Fi disconnection fix, and we'll see if that finally nails a bug that dates back to beta testing and has driven some people bananas. I've seen it in roaming problems in my house, in which Yosemite won't hand off from one base station to another, despite a poor signal. Several other items in the list appeared in my or the mega-comments for The Software and Services Apple Needs to Fix.
The iOS 8.1.3 fix repairs several issues, including the bug I've seen repeatedly in which apps are not searchable via Spotlight—they don't show up in results. This is a four-month-long bug for a feature I and others may use multiple times a day. (It didn't always fail, but it did at least once a day for me.)