Ubiquiti’s provide a Controller version for other distributions of linux but only display debian on their site, but if you’re running CentOS or another Linux distribution, you’ll have to use the generic controller package. The upgrade provess is so simple! (i have also written this script that makes it even quicker)
I previously explained how to install your own UniFi Controller on CentOS in this article. Once you have it up and running, it’s even easier to upgrade to a newer version. The process takes less than 3 minutes with these steps.