Model - T2
SW Version - v1.2.0
SW Revision - r11553
Build Date - 10.31.2017

Model - T2
SW Version - v1.2.6
SW Revision - r12319
Build Date - 12.06.2017

Check your System menu and you will see the new version ready and the previous version will still be there too.
-unplug and reconnect the power cord to reboot and update will complete.