There are a lot of enterprise users on Java 7 at the moment and they are not going to move to Java 11. I just moved a company to Java 8 and it was a big thing. Not sure which one is the next "LTS" release, that will be the next target for our migrations. The biggest "feature" is G1GC in "new" Java for a lot of users based on my experience.

One huge difference for enterprise users is release cadence.

OpenJDK will be updated much more rarely, on a quarterly cadence only, including for security patches. So if you go the OpenJDK route, be ready to do some JDK-level patching yourself if you want to mitigate any zero-days that surface.

Fixes will also only be applied to the latest versions, so you'll need to be prepared to live on the bleeding edge and accept all the risks that come with that.

And Oracle now provides OpenJDK binaries: http://jdk.java.net/ for Windows, MacOS and Linux on x86-64.

Azul's Zulu fork is compatible with Oracle's but with a better concurrent, parallel, pauseless GC. I can't see a reason not to use theirs because their support is excellent (have tried) and any enterprise problems can be delegated to them with a support contract. IOW it works for indie devs and enterprise alike. It sounds like I'm pitching them, because they're a compelling alternative.