10 Upgrade notes for 7.4.0

These notes are for upgrading from Zabbix 7.2.x to Zabbix 7.4.0.

All notes are grouped into:

• Breaking changes - changes that may break existing installations and other critical information related to the upgrade process
• Other - all remaining information describing the changes in Zabbix functionality

See also:

• Upgrade procedure for all relevant information about upgrading from versions before Zabbix 7.2.0;
• Upgrading HA cluster for instructions on upgrading servers in a high-availability (HA) cluster.

Upgrade process

To complete a successful Zabbix server upgrade on MySQL/MariaDB, you may require to set GLOBAL log_bin_trust_function_creators = 1 in MySQL if binary logging is enabled, there are no superuser privileges and log_bin_trust_function_creators = 1 is not set in MySQL configuration file.

To set the variable using the MySQL console, run:

mysql> SET GLOBAL log_bin_trust_function_creators = 1;

Once the upgrade has been successfully completed, this option can be disabled:

mysql> SET GLOBAL log_bin_trust_function_creators = 0;

Breaking changes

MSSQL Zabbix agent 2 plugin update

The template MSSQL by Zabbix agent 2 has been updated with filters to include or exclude discovered quorum members by name as well as a service filter that allows filtering by cluster name to exclude empty clusters. To have the template work without errors, the MSSQL Zabbix agent 2 plugin must be updated to a version equal to or above 7.4.0.

Other

Correct information from nested host groups in maps

Information from nested host groups is now correctly displayed in maps, for example:

• Host group label now displays the problem summary from all hosts in nested host groups;
• "Host group elements" view now displays a separate map element for each host in the nested host groups.