Hi,
Surely there must be a better update process than to deploy new appliances for every new release of Usage Meter?
It's getting tiresome to have many number of instances running, plus all the extra cost associated with keeping the old appliances and having backup for them stored.
I'd love to see a feature where we update via VAMI, just like vCenter Appliance!
VMware, please address this for future releases! 
Thank you for the suggestion
UM 3.6.1 offers upgrade with moving configuration and data so after that the old UM appliance could be removed (at the end of the month).
And for the next major version of UM we plan to make the upgrade easier, stay tuned!