PLEASE SEE THIS BLOG POST FOR A MUCH NEWER AND UP-TO-DATE OVERVIEW:
https://mikedietrichde.com/2020/02/26/to-which-release-should-you-upgrade-to-revisited/
The Oracle Lifetime Support Policy brochure for tech products has been updated now as well in order to reflect the addition and availability of Oracle Database 12.2 on-premises:
Lifetime Support Policy – Oracle technology products
Please note that this table and the brochure never makes a distinction between patch sets and base releases. For instance, the line talking about Oracle 11.2 does not say that Oracle Database 11.2.0.3 is out of any bug fixing support since Aug 27, 2015 – and Extended Support …
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