There's an upgrade script in that KB article. Is it safe to assume that I can just change the base_url in it to Index of /yum/10.11/centos7-amd64/ and be good?
Your mileage might vary but the upgrade script has been known to cause the Plesk install to get wiped under certain conditions so use it with extreme caution.
Your mileage might vary but the upgrade script has been known to cause the Plesk install to get wiped under certain conditions so use it with extreme caution.
Could you please let us know where you saw that information? As the script does not touch the Plesk installation at all it will be interesting to find out more about this.