Github user mattrpav commented on the issue: https://github.com/apache/activemq-artemis/pull/875 @graben re: Transacted: if the PostOffice is transacted by default, that's great. The option in 5.x felt more like a "shore-up" to get to transacted. I don't see a compelling reason to support non-transacted broker-side message movement. A note in the migration guide would suffice. re: Concurrency: I see this having value, and agree it should be a separate JIRA/PR. re: Selector/Filter: that's great that you have it on your radar. You mentioned filter, so I feel obligated to clarify-- this selector is determined by the _consumer_ using the standard JMS selector available in the API. The broker then store these to properly filter messages if the consumer goes offline. Does Artemis' filter support this behavior, or is filtering broker-side configuration? Thanks!
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