Today I’ll describe my first impressions on install the new 12cR2 (available for premises on march 2017) for linux and Solaris.
Inicially I felt a little bit strange because there are only one file for database and only one for grid install (on other versions since 11gR2, there are 2 files for database and one or more for grid - depends of version that you install).
So I downloaded and install it on OEL6.8 for study purposes.
The install process is almost similar than 12cR1 process, except you need more free space to install it (at least 8 GB).
Other point, when you unzip the single file, keep careful in uncompress on a folder (for organization, because all files will be uncompress in same directory that you are).
Then I will keep study and publish some more new features! :-)