Which version of wildfly has default compatibility with java 8 SDK?
WildFly 8.1 was first that "worked" with JDK8, but WildFly 10 was first that required it as minimum requirement.
If we are going to migrate to wildfly, how about support? Can we get prompt response to queries/live support/bug fixes etc for free or for a license with Redhat/anywhere? Please suggest.
If we want support, whether it is better to go to EAP instead?
Given you opened support ticket I will leave it to the support to respond to it.