Question [Q] N7*** note 2 bootloader in i317

I have installed DN3 on my att samsung galaxy note 2 (i317).
As mentioned in the development section posts, WIFI is not working. I selected the N7105 option while flashing.

Now according following thread, I should upgrade to latest bootloader for N7105 device.
http://forum.xda-developers.com/show...postcount=2789

Is it safe to flash that bootloader on i317? I have not unlocked or done anything with bootloader.
If not, should I use the other option to flash wifi fix to current bootloader?

How can I see the version of the bootloader on my device?