With the upgrade from 9.6 to 10 we improved performance by 20% without doing any other changes. From 10 to 11 it was pretty similar, saw a 15-20% performance in

With the upgrade from 9.6 to 10 we improved performance by 20% without doing any other changes. From 10 to 11 it was pretty similar, saw a 15-20% performance increase. We haven't made the jump to 12 yet, we expect overall performance to be lower but disk I/O to be improved. If performance doesn't matter and you don't need any of the new features you'll have a hard time finding reasons to upgrade. I consider 9.6 to be very stable.