Probably because the servers for v2014 is on a different release cycle than any previous version.
With the "continuous streaming updates" the need for regular vps updates is greatly diminished.
The "CSU" are released about every 3 1/2 to 4 minutes. Don't worry as long as you have CSU enabled
you have the latest protection. To be perfectly honest I'm not worried or concerned at all.
If you want GUI>Settings>Update