How to upgrade splunk enterprise and enterprise security?

[imontanoisoft]

I have to upgrade splunk enterprise (from 7.2.6 to 8.0.1 ) and enterprise security (from 5.3.0 to 6.0.0)
I am following the next documentation: https://docs.splunk.com/Documentation/Splunk/8.0.1/Installation/HowtoupgradeSplunk
But here does not talk about the upgrade order, I mean I have to upgrade first the splunk enterprise or first I have to upgrade the enterprise security?

[ChrisG]

You should be reading the upgrade docs for Enterprise Security. See Planning an upgrade of Splunk Enterprise Security in the Splunk Enterprise Security Installation and Upgrade Manual.