When installing Service Management Roll Up patches, do I need to install each Roll Up patch to get to the newest version?
Any Service Management Release
Service Management Rollup Patches are cumulative and include fixes from previous Rollup Patches.
You will only need to install the latest Roll Up Patch to get the latest fixes and features.
If your environment is running 17.3 RU3 and you wish to upgrade to 17.3 RU11, you will not need to install RU4-RU10.
You can just install RU11.