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12 Upgrade notes for 3.2.2

Changed syntax for selecting nested host groups

Along with extended nested host group support, the syntax for including nested subgroups has changed.

In Zabbix 3.2.0 and 3.2.1 nested host groups are included with the parent host group, it the parent group is specified as hostgroup/*. In Zabbix 3.2.2, the '/*' syntax is dropped. Instead, nested host groups are included if simply the parent host group is specified as is. This means that a host group that is set, for example, in action conditions, now silently includes all its nested host groups.

Frontend changes

  • The link for adding descriptions to triggers created by low-level discovery has been removed from MonitoringTriggers. Such descriptions were later deleted anyway by low-level discovery, if they were not present in the original trigger prototype.

Daemon changes

  • Active agent auto-registration events are not generated any more if there is no action for auto registration.

Miscellaneous changes

  • Zabbix server and frontend now try to set the MySQL autocommit variable to "autocommit=1" (enable MySQL autocommit mode) at the beginning of each connection to the database. Failing to do so results in failed database connection.