[arm-allstar] Node update/upgrade advice

[pluggy]

All,

Our local node has been down since last October when I needed to shift to a new QTH.

I have been following this group and have noted that there have been significant updates to the Arm-AllStar software i.e. Auto update and DNS.

Our node is now back up and running but has not been updated or upgraded.

Can someone in the group please advise what steps are required to do this with the least amount of grief.  

Kind regards
Maarten
VK6MP