Those causes would be easy to fix? Why not push immediately a fix? Sounds like a 5-minute work?
Is also sunday... and I think the problem is not push to your device the fix but fix it on the server side and then push the fix to the devices.
For example, a long press on a email from amzon with amazon link, open the pop-up with "Open in Amazon" option, that usually, for a link to a XYZ website there isn't...and in order to make this, every link is "mapped/traced" by iOS. There are daemons for this things that communicate with -I think- certicated from Apple (due to security check). And there somethings went wrong, also my iPad mini 4 was fine ten hours ago, now not. And my iPhone 6S hasn't (still) the bug.
The funny thing is the I went to sleep with the iPad links working, opened it in the morning, I've only changed the wallpaper, then launched mail and boom () the links just not work anymore. Is not a 9.3 update issue on the iphones.
After this issue all I can say is that iOS 10 adoption rate wil raise veeery sloooow, ahah