Release 7.4.0: Hazelcast listens to localhost by default

[Guest]

The default for com.openexchange.hazelcast.network.interfaces= at hazelcast.properties will be changed to accept incoming connection from the local interface only. When building a cluster, this setting needs to be altered in order to allow cluster communication. Single-host installations are advised to keep the default setting.
Please double-check if this setting gets updated appropriately when updating packages, manual interaction may be required.