Important:
A script is available to assist in recording the existing values. If the presAttributes command is not available, a copy of the script is available inside the PresenceServices-OptionalComponents.zip folder which is part of the PresenceServices-Bundle.zip folder. Copy this script to any Breeze node in your cluster and execute it as a privileged user. Note that encrypted values such as passwords and tokens are not revealed. Copy the values to a temporary place for reference, and use it to manually enter them again after upgrading.