As Justin said, see https://activemq.apache.org/jms2. The 5.18.x zip
distribution is only javax.jms API package based, nothing will change
for the zip until 5.19.x adds jakarta.jms API package support for the
wider codebase, something which is still being worked on (e.g
https://github.com/apache/ac
Which exact client library are you using?
ActiveMQ 5.18.x introduced the activemq-client-jakarta module which is
separate from the normal JMS client. You can find the versions here [1].
That said, the client is not "fully compatible" as certain methods have not
yet been implemented. See this page