Welcome! Please see the About page for a little more info on how this works.
Datomic Ions currently run on Java 8. There are lots of great features in the modern versions of Java that we're not able to use (http client, new date methods). Since all our services run on Java 11, we must backport certain features just for Ions.
We are evaluating running on Java 11. However, we currently only run on Java 8. We will update this request should that change.