I did upgrade from keycloak 1.1.0.Final to 1.4.0.Final, but I had some issue.

When I tried to add "schema": "security" in section "connectionsJpa" to file keycloak-server.json and run first time server to create everything on database. I recived an error related with liquibase, "REALM" etc.

Second time i solved it becouse I created default schema and after it I changed to schema "security" manually on database and later in file keycloak-server.json.