Apache ActiveMQ Classic 5.18 product requires Java 11 to be running on both the JMS client and the broker.
We have some clients that cannot be upgraded from Java 8 to Java 11 yet but we would like to upgrade the brokers to 5.18.
Will the older versions of the ActiveMQ Classic JMS clients running on Java 8 (e.g. 5.11) continue working with the latest version of the broker? May be some additional configuration needs to be done on a broker to provide compatibility with the old clients?
I couldn't find any official documentation from Apache that would cover this subject.
ActiveMQ Classic 5.18.x should be backwards compatible with earlier client releases. If it isn't then it would be considered a bug that would be fixed.