# Rename the “nextcloud” binaries directory to “owncloud”.
# Copy the downloaded binaries (owncloud) directory over to the "/var/www/html/" location.
# Go to the copied "owncloud" directory under /var/www/html/, find PHP files; "version.php" and "index.php". '''Copy''' them to a known location, they will be required later after downstream in the upgrade.
# In “owncloud” directory, in the “version.php” file.
# Find the line containing "$OC_VersionCanBeUpgradedFrom".