Communications Support Forums

We have a nine repeater IP Site Connect system. Six are MTR3000's and the remainder are XPR8400's. We would like to get each repeater up to the latest firmware. They all should be running 1.09.02 right now. There are approximately 450 subscriber units which consist of XPR4550 mobiles and XPR6550 portables. The firmware for the subscriber units range from 1.08.xx to the latest.
Does anyone know of any problems we should be aware of before upgrading the repeaters. The plan would be to upgrade the repeaters and then gradually upgrade the mobiles and portables. Any thoughts appreciated.