Upgrade of Master/Media server from 7.5.0.6 to 7.5.0.7

Hi All,

We are planning to upgrade our master server which is running on Netbackup 7.5.0.6.
This is a Linux Master Server also working as a media server.
Kindly share the documents and tech note that we can refer to upgrade this Master/Media server.

Also we are using datadomain as the final storage . Do we need to upgrade the OST also?