Changes between 2.x and 3.0.0.RC1

This is a preview release for 3.0.0. It implements the JMS 3.0 specification, also known as Jakarta Messaging. As such, JMS Client 3.x is not compatible with 2.x: the API packages were renamed from javax.jms to jakarta.jms. It also requires Java 11, like JMS 3.0. See the JMS 3.0-related issue for more details.

All users interested in using JMS 3.0 are encouraged to test this release candidate.