From April M33.85 is the latest available version of CPS.
SAP Note 1844465 SAP CPS 8.0 by Redwood: M33.85.
This note describes changes between SAP Netweaver CPS M33.79 and M33.85. You can also find the Quick Install Guide of the M33.79.
SAP KBA 1798427 FAQ: How to check SAP CPS (Redwood) Version/Milestone and access SAP CPS documentation.
This KBA shows you how to check what Version/Milestone you have installed.
It also explain you how to access and download most of the guides from the installed server.
SAP CPS 8.0 Security Guide M33.58
Redwood Tutorials Highly recommended 5 to 10 minutes tutorials that can make beginners save a lot of time.