The update is on BCS (aka, Platinum).
But I just now finally heard back from our case engineer who provided the following information:
RU6 MP2 PP1 addresses two small patches that are implemented into the product:
1. Verisign implementation
· User Authentication Product console control through the SPC
2. SAV For Linux Reporter
· SAV for Linux (SAVFL) Reporter provides log records and inventory information to the Symantec Endpoint Protection Manager via its legacy reporting channel. This allows you to monitor and report on SAVFL client activities from the Symantec Endpoint Protection Manager console.
Unless you utilize either of these functions or products it is not required for you to implement PP1 in your environment. It will also be rolled into the next version release.
It was just critical for me to know because about to do a SEPM upgrade in the next 10 minutes.
Thanks for the follow up!