18.1 is said to be the same release as what would have been called
18.104.22.168. It is just that they switched the naming convention in there.
All of your questions are answered in this reference from Mike Dietrich on
the topic: https://youtu.be/pmyxUzs6TVM
On Thu, Apr 18, 2019 at 1:16 PM Patrice sur GMail <patrice.boivin@xxxxxxxxx>
Possibly foolish question, but at some point Oracle claimed the quarterly
patches were going to change the version numbers of database instances.
Did anyone run into problems upgrading from 12.2 to 18.3 or 18.4? Or is
18c just 12c with a different versioning style (YY instead of version
number because they didn't want to use 13).
If 18 and 19 are just 12c with a different name, it's tempting to just
move to 18c as it it was a patch.
(I know it would be like going from 12.1. to 12.2 etc.)