SRM Upgrade for Multiple Sites

Greetings,

I would like to upgrade my VCs from 6.0U2 to 6.0U3a and then SRM from 6.1.1 to 6.1.2 without breaking SRM. SRM is running between 2  VCs in production. I cannot find anything on doing this aside from the sequence - VC, VUM, vSphere Replication, and then SRM. There has to be something about timing, disabling services, etc. to make this seamless.

Thanks in advance for any help you can provide.

Regards,

Rick