Release Notes for Zabbix 6.4.2

Zabbix Team is pleased to announce the availability of Zabbix 6.4.2.

Zabbix is an enterprise-class open source distributed monitoring solution. Zabbix is released under the GPL, thus it is free of charge for both commercial and non-commercial use. A complete text of the license is available at

This document contains the release notes for Zabbix 6.4.2. Download it from download.

The following sections describe the release in details and provide late-breaking or other information that supplements its main documentation.

Breaking Changes

ZBX-22465 moved PSK file creation step to be performed before registering Agent service on Windows

New Features and Improvements

ZBXNEXT-8334 Added Event-Driven Ansible media
ZBXNEXT-8394 Created separate proxy compatibility triggers in Zabbix health templates, removed unnecessary dependencies

Bug Fixes

ZBX-22718 Fixed memory leak in json objects and identical keys
ZBX-22719 Fixed replace() function in expressions
ZBX-22727 Fixed crash in expression parser
ZBX-22720 Dropped support for custom geomap HTML attribution text
ZBX-22376 Fixed warning alert when deleting host or template groups on standalone pages
ZBX-22615 Fixed master item error handling when processing dependent items
ZBX-22595 Fixed template items' context menu
ZBX-22521 Added debug logging for process selection in proc.mem[] on AIX
ZBX-22492 Removed size limitation for logged messages in JS
ZBX-22609 Fixed issue where the last LDAP server could be removed when LDAP authentication is still enabled
ZBX-22373 Updated go.mod/sum to allow mixing session and key parameter for Zabbix agent 2 items
ZBX-22241 Fixed minimum severity filter usage for map element link triggers
ZBX-22194 Fixed inability to import a template with trigger dependency on a host trigger
ZBX-19375 Prevented the ability to set duplicate values for the "uuid" parameter when updating any of template entities; added the ability to update the "uuid" parameter for the Service API
ZBX-21583 Optimized preprocessing steps and added two graphs and dashboard in the Hadoop by HTTP template
ZBX-21603 Optimized preprocessing steps in the Zookeeper by HTTP template
ZBX-21589 Optimized SQL queries and preprocessing steps
ZBX-22635 Fixed authentication for SCIM requests
ZBX-22641 Updated deprecated ports in Kubernetes templates, updated target tags, added notes about binding address options for Scheduler and Cluster Manager components
ZBX-22597 Resolved issue with LDAP group membership mapping not matching case-insensitive entries
ZBX-22538 Fixed popup menus disappearing on right-clicking links in them
ZBX-22363 Added support for item and item_preproc table fields to be either nvarchar or nclob
ZBX-22306 Fixed Zabbix agent 2 crash caused by exhausted file descriptors
ZBX-21013 Hid options "Create new template/host groups" for unprivileged users in the Import form
ZBX-22219 Added validation to the "Server" IP/DNS option in the configuration of Zabbix agent 2
ZBX-22553 Fixed authentication.update not allowing to remove deprovisioning group without unchecking inactive SAML/LDAP JIT provisioning
ZBX-22304 Fixed duplication in web scenario error message, when curl could not resolve host
ZBX-21577 Added extra master item prototype to reduce preprocessing worker utilization
ZBX-22432 Fixed different severity paddings in triggers popups and maps triggers
ZBX-20084 Fixed VMware parameters display
ZBX-22331 Fixed messages during graph prototype discovery updates
ZBX-20699 Fixed inability to import host prototypes with SNMPv3 interfaces; enabled supplying conditional parameters with default values to hostprototype.create and hostprototype.update API methods when the parameters have no effect; added audit logging of changes to host prototypes when unlinking a template; fixed inability to remove group links or group prototypes from a host prototype of a linked template
ZBX-22210 Fixed selected count when using filter and filtered parameter is changed in the popup
ZBX-22499 Fixed issue where the last remaining action condition could not be removed
ZBX-22533 Fixed debug section overlapping with 'Add new widget' placeholder in dashboard
ZBX-22502 Fixed collapsible arrow behavior in the template import diff popup
ZBX-22455 Added check for numeric value in value mapping
ZBX-22585 Fixed spacing from dialog top to header in the widget configuration form
ZBX-22206 Fixed issue with incorrect padding in multiselect popup for contrast dark and light stylesheets
ZBX-22487 Fixed incorrect documentation link in the Connector create view
ZBX-22161 Fixed missing documentation links on template groups list and edit/update pages
ZBX-22245 Fixed inaccessible widget name issue
ZBX-22272 Fixed checkbox selection issue when clicking on labels in problem mass update
ZBX-22391 Fixed decimal places of processes in the Dashboard global view
ZBX-18527 Fixed markup issue for the Type of calculation expression field

Installation and Upgrade Notes


See Zabbix documentation for full details.


See Upgrade procedure for upgrade options and instructions. For version specific upgrade notes, see Upgrade notes for 6.4.2.

Commercial support

Zabbix Company provides a full range of Professional Services. We also provide trouble-free Upgrade Service for easy migration from earlier versions of Zabbix. Please Contact sales for pricing and more details.


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