We don't explicitly test cross-version compatibility so we can't make any
guarantees, but we try not to do anything that would break compatibility
and I haven't heard of any cases where anyone has found an incompatibility.
But as always, test in a non-operational environment before you do it live.
I'm using ActiveMQ-5.5.1 in a star topology configuration - many leaf brokers
are feeding one centralized broker. I would like to start with the hub in
the middle and update it to ActiveMQ-5.15.0, but I don't know if the
Transport layers (and NetworkBridges) are compatible. Does anyone know if
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