CentOS Upgrade Path from 8.1.9-12.1/@isv_ownCloud_community to something more current

Is there a procedure for catching up to a more recent version of Owncloud? This 8.1.9 is starting to get old enough that it worries me...

Currently running CentOS 6.9, but that'll probably need upgrading shortly too...

Hey,

i did the following search:

https://doc.owncloud.org/server/latest/admin_manual/search.html?q=upgrade

and found this documentation:

https://doc.owncloud.org/server/latest/admin_manual/maintenance/package_upgrade.html?highlight=upgrade#upgrading-across-skipped-releases