Upgrade from Ssystem Recovery 2010

I have 50 clients with system recovery 2010 managed with Backup Exec System Recovery 2010 Management Solution.
Questions:

1- can I upgrade clients to system recovery 2013 or I need to uninstall the client before installing the new release?
2- can I upgrade the management console?
3- if I upgrade/install the new management solution I'll be able to manage the clients with the older release?

Thanks