NIOS upgrade path from 6.8.2 to 8.4.3

[#1]

Hi gays, 

i need the upgrade path from NIOS 6.8.2 to 8.4.3 

and is the 8.4.3 is stable or it's good to be later than it 

Thanks 

[#2]

Moved this from NetMRI to NIOS community.

Yes, 8.4.3 is stable.

You cannot upgrade directly from 6.8.2 to 8.4.3.  Open a support ticket to get recommended upgrade path.  The earliest release you can upgrade from directly to 8.4.3 is 7.3.18.  Note that Release notes for each release indicate which releases you can upgrade from directly.

Dave

[#3]

thanks 

i have two Infoblox connected each other and replication how i can make upgrade ?
one by one or if i make to one it will be sync?