Hello. I would like to inquire about how to migrate fro one version of the rb-os, i use rb750 and 750g, for example I am currently using v5.2 and would like to upgrade to the latest. Is it possible without losing any configuration,especially the user manager database and the amount of browsing details that are due to my users?
http://wiki.mikrotik.com/wiki/Manual:Upgrading_RouterOS
It should be safe to upgrade. The keyword here is ‘should’. Always take a backup before upgrading.