Hi @mstrust,
Sorry for the late reply!
I recommend making a backup of your database before upgrading, just to be safe.
These instructions assume your osTicket Awesome installation is in a directory named /support
Create a copy of the /support directory called /support-old
# cp -a /support /support-old
Using your FTP pogram, upload the contents of the /upload folder to /support, overwriting any files.
That’s it.