Upgrading SEPM from RU1 to RU1 MP1

Good morning,

I want to upgrade to RU1 MP1. My current version is RU1 (12.1.1000.157). I read some articles on how to upgrade the SEPM and the clients, but on the file connect site I cannot find the MP1 download for v12.1. I only see v12.1.2.

Please assist.

Kind Regards,