yum update from 3.14.4 looks ok
in /boot 
vmlinuz-3.14.3-200.fc20.x86_64
vmlinuz-3.14.4-200.fc20.x86_64
vmlinuz-3.14.7-200.fc20.x86_64

I can't seem to get 3.14.7 to 'take'
after reboot still in 3.14.4

exact command used for update:

yum update && grub2-mkconfig -o /boot/grub2/grub.cfg

followed by a reboot,

still get:
$ uname -r
3.14.4-200.fc20.x86_64