If you are starting an upgrade plan, do it directly to Oracle Database 19c. Why? Well, let’s agree that 19c is “equivalent” to 12.2.0.3 on previous version models, and 18c would be 12.2.0.2, after the latest in the old format: 12.2.0.1. So, thinking reasonably, you would already plan for latest PSU on the future version, right? Well, this is 19c. But not only this: it’s well known that Oracle’s Terminal Patchset is the Long Term Release for each version. And for the 12.2 family, this is 19c. The image below should help to clarify this:
![Oracle patching chart](https://www.pythian.com/hs-fs/hubfs/Imported_Blog_Media/Versions_Self.png?width=2218&height=876&name=Versions_Self.png)
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