Can you root...

Can you root the AT&T Samsung galaxy s5 running android 5.0
BASEBAND NUMBER
-----------------------------
AP: G900AUCU4B0F3
CP: G900AUCU4B0F3
CSC: G900AATT4B0F3
------------------------------
KERNEL VERSION
3.4.0-4432708
JUL 30 14
---------------------------
KNOX 2.3
--------------------------

I know the OC4 one cannot be rooted nor downgraded so I wannted to know before hand if my version is able for downgrade. Thanks.

from xda-developers http://ift.tt/2bLtNtx
via IFTTT