Are there step-by-step instructions on how to upgrade?
For core update, Oxwall software documentation says, "Auto-update is all about clicking a button in admin area and entering your FTP details." Where exactly in admin area do we enter our ftp details? I can't see any option...
Shreya Tili, also updates are displayed in admin panel's dashboard.
If you have not got "Update Platform" notice, means that CRON is not set.
Note that it takes some time for this notice to appear. A day or two.