I did find a number of notes(below) but I'm still wondering why they do not provide a "latest" guide for the upgrade (sp10). They provide just one in the beginning of the release: 8.0, 9.0, 10, then leave it to us to sift through their KB in hopes of finding the upgrade information for any later path we are trying to take. I was hoping I was missing some better road map they provide, but that may not be the case.
2188592 - SAP HANA SPS 08 Database Maintenance Revision 85.05
1948334 - SAP HANA Database Update Paths for Maintenance Revisions
2085810
- SAP HANA SPS 08 Database Revision 85
2001528 - Linux: SAP HANA Database SPS 08 revision 80 (or higher)
on RHEL 6 or SLES 11