11 Upgrade notes for 7.4.x

This page provides collective upgrade notes for minor releases of the major Zabbix version.

See also upgrade notes of the major version.

Upgrade notes for 7.4.6

Restricted permissions for log files

Zabbix component log files are now created with read-write permissions for the file owner only. Additionally the files are readable by the owner group. All other permissions are denied.

On Linux, this change is from 0666 to 0640 permissions. The change affects Zabbix server, proxy and agent log files. Permissions for Zabbix agent 2 log files were updated from 0644 to 0640 (by removing read permission for others).

In addition, several other files are now created with 0640 permissions:

• UNIX pid files for Zabbix processes
• data export files
• temporary files for icmpping* checks
• log persistent files

MySQL replication status queries handled by Zabbix agent 2

Zabbix agent 2 MySQL plugin now supports both SHOW SLAVE STATUS and SHOW REPLICA STATUS. The plugin automatically selects and executes the appropriate statement depending on the server version and returns the result in the usual JSON format.

Agent 2 items such as mysql.replication.discovery and mysql.replication.get_slave_status work with servers that use either SHOW SLAVE STATUS or SHOW REPLICA STATUS. No changes to existing agent 2 items or agent 2 templates are required.

Upgrade notes for 7.4.4

Warning! Upgrading to this version is not recommended due to errors related to graphs and the Zabbix agent 2 MySQL plugin.

Upgrade notes for 7.4.3

PHP cURL minimum version

The minimum supported version for the cURL PHP extension is now 7.19.4.

Upgrade notes for 7.4.1

This version is not released yet.

Agent 2 runtime control output stream

Zabbix agent 2 runtime control commands (zabbix_agent2 -R <option>) now write output to stdout (standard output) instead of stderr (standard error). Please update any scripts that rely on previous behavior.