I use the iCloud Photo Library to link my iPhone to my Mac computer and iPad. THis week I went into the Photos app on the iPhone and got a warning saying that it hasn't synced in X amount of days (I forget how many it said). Also, I use the cloud to backup my iPhone, it normally backs up every time that I plug my phone into the charger, which is every other day. But I noticed two days ago that it said the last backup was 10-30-16. That was right before installing the newest update. The simplest answer is that I had WiFi turned off at home, that would affect both. But I definitely did have it on, and it's still on. After charging my phone last night I see that the backup was done and Photos is also all updated. Does anyone have any idea why these 2 things didn't sync like they are supposed to.