After manually doing updates for about a year, I went ahead and enabled auto updates with yum via cron. So for over a year now, I haven't been bothered with it and haven't been bitten by a bad update. (Major updates like MariaDB need to be manually done.) Occasionally you will get a "ghost" notice of updates being available, but generally this should take care of it for you:
As root, create this script:
/etc/cron.daily/yum
#!/bin/sh
# yummy updater
/usr/bin/yum -y update --security