11.9 Applying Patches to Oracle Grid Infrastructure
After you have upgraded Oracle Grid Infrastructure 12c Release 2 (12.2), you can install individual software patches by downloading them from My Oracle Support.
Patching Oracle Grid Infrastructure to a Software Patch Level
Starting with Oracle Grid Infrastructure 12c Release 1 (12.1), a new cluster state called "Rolling Patch" is available. This mode is similar to the existing "Rolling Upgrade" mode in terms of the Oracle ASM operations allowed in this quiesce state.