Once your products are in the market and customers are using it, what is one thing that matters most to you? Every night you go sleep, keeping your finger crossed, hoping nothing goes wrong. Yes, we are talking about dreaded software downtime!
There are many reasons to upgrade your Oracle product to the latest patch version. Out of them, one single most reason that stands out, is to avoid downtime. One recently published Gartner's report shows that true average cost per hour of software downtime can be as large as more than $600k! It is prudent to invest time and resources in upgrading your Oracle product in every opportunity you have, rather than taking high risk of facing the downtime due to not upgrading. It goes without saying that effort you put in upgrading, always outweighs cost you pay because of the downtime. Product downtime can impact more than even revenue, Your brand, the most critical part for your business, might also take a substantial hit! You are also facing higher security risk vulnerabilities due to inadvertent avoidance and ignorance of the upgrade. The performance of your product can also get affected.
Unfortunately, in all practicality, to achieve 100% uptime/0% downtime is almost not possible and one can only try to maximize effort in avoiding it. And most rewarding effort is to keep your Oracle product with latest available patch.
Keeping all this information in mind, if you are still behind upgrading to latest patch, Oracle strongly recommends to upgrade as soon as possible. In this context, note the following table showing Oracle Identity Management Support End dates for the year of 2019.
[From Oracle Lifetime Support Policy - Oracle Fusion Middleware - Page # 36, 37]
For further details, refer following documents: