Incompatible Changes in EMQX 5.4

e5.4.0

• #11998 Stopped releasing packages for MacOS 11 (BigSur).

• #12112 Stopped supporting UDP multicast based clustering strategy.

• #10976 Fixed topic-filter overlapping handling in shared subscription.

  • Hook callback session.subscribed and client.subscribe will now receive shared subscription in its full representation, e.g. $share/group1/topic1/#, and the share property is deleted from subopts.
  • Hook callback session.unsubscribed and client.unsubscribe will now receive shared subscription in its full representation, e.g. $share/group1/topic1/# instead of just topic1/#.
  • ExHook Proto changed. The share field in message SubOpts was deprecated. ExHook Server will now receive shared subscription in its full representation, e.g. $share/group1/topic1/#, and the share property is deleted from message SubOpts.
  • session.subscribed and session.unsubscribed rule-engine events will have shared subscriptions in their full representation for topic, e.g. $share/group1/topic1/# instead of just topic1/#.

• #12129 The default license capacity has been adjusted from 100 concurrent connections to 25 concurrent connections.