Where are logs and backups related to upgrades stored?

Where are logs and backups related to upgrades stored?

Each time Nodegrid OS is upgraded, it creates a backup of the configuration and a log of the upgrade progress.  Those are stored in /var/upgradeBackup.  The configuration backup will be named config- followed by the version with the .tgz extension; for example config-5.0.6.tgz.  The upgrade log will be named image_install. followed by the date and time in numeric formal; for example image_install.20220324_215056.