Applicable across more versions as well.
This can be really quick and easy.
As far as I know going straight to 6.7 from any 6.0 version can be done in one shot without stepping through updates.
In the case I finally made notes and kept them, to get this done I was going from VMware ESXi 6.5.0 to whatever latest version of 6.7. It was my personal server, it was deployed on 6.5 without enough updates for my preference and I just wanted this one to be the latest. Any posts I was finding were usually from some specific version to another specific version. They did things differently... This should be a more generically applicable process.
esxcli system version get
esxcli software profile get
esxcli network firewall ruleset set -e true -r httpClient
esxcli software profile update -d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml -p ESXi-6.7.0-20191204001-standard
I kept seeing the hostupdate URL tossed around while looking for places to download VIBs... But that wasn't the right direction to go anyway. So in going with the command line route I found that virten.net page but would like to know where they get their updated profile list from because when that page goes away I won't be able to get hat info for myself. Feel free to drop a line about that too.
Update, on a recent 6.5 to a newer than above 6.7 I did encounter another cause for a "no space left on device" error which was well covered >here<
There, so hopefully that all makes sense just the basics, right to the point and noting how to find the one variable you'll need to change. (and noting that it would be good to know how to find that variable rather than a site to grab it from...)