Upgrade ESX 6.0 to 6.7 Custom HP iso

We have HP ProLiant DL380 Gen9 and they are on the compatibility list. I'm looking to see if anyone has upgraded without losing any settings using the HP custom image and outline what the process looks like.

We have VCSA 6.7.0.43000 Build 15976714 with ESXi 6.0.0, 5224934

We are looking to upgrade to ESXI 6.7 U3 and I see they have an HP image= available to use here:

https://my.vmware.com/group/vmware/details?downloadGroup=OEM-ESXI67U3-HPE&productId=742

If I set the image as a baseline in update manager will it perform an upgrade or clean install?

Any process outlines will help.

Thanks in advance