Release Notes for Zabbix 6.4.0beta2

Zabbix Team is pleased to announce the availability of Zabbix 6.4.0beta2.

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 6.4.0beta2. Download here.

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

New Features and Improvements

ZBXNEXT-7953 Added VMware tags support for vSphere versions older than 7U2 Proxy Server
ZBXNEXT-7122 Added detection of compressed chunks in history or trend tables, and warnings that suggest enabling housekeeping overrides accordingly Frontend Server
ZBXNEXT-8018 Added token authentication in Template GitLab by HTTP Templates
ZBXNEXT-7512 Implemented new context menu for host, item and trigger in the Monitoring section Frontend
ZBXNEXT-7972 Implemented name for trigger URL Frontend Server
ZBXNEXT-6401 Added new vmware keys vmware.datastore.perfcounter and vmware.hv.diskinfo.get Proxy Server
ZBXNEXT-8038 Improved layout for audit log report utilising two-column layout Frontend
ZBXNEXT-7816 Added support of PostgreSQL 15 Proxy Server
ZBXNEXT-7970 Added support of TimescaleDB 2.8 Proxy Server
ZBXNEXT-7902 Added templates for Azure MySQL servers Templates
ZBXNEXT-7920 Improved value cache not to drop items from cache when no new value has arrived in 24 hours Server
ZBXNEXT-8035 Added override for file system discovery trigger in f5 template Templates
ZBXNEXT-7912 Improved media type configuration API Frontend Installation Server
ZBXNEXT-3290 Added incremental proxy configuration sync API Proxy Server
ZBXNEXT-7971 Increased max length of the "URL (after login)" field API Frontend Installation
ZBXNEXT-7931 Removed heartbeats support from Zabbix proxy Proxy Server
ZBXNEXT-2557 Added support of Zabbix proxies with legacy version API Frontend Installation Proxy Server Templates
ZBXNEXT-6797 Increased length of host metadata Agent Installation Server
ZBXNEXT-3496 Added ability to add own links to Host and Event context menu API Frontend Server
ZBXNEXT-6181 Added functionality to remove SQLite3 DB file on proxy version increase Proxy
ZBXNEXT-1616 Added monitoring of mount point options for Unix-like OSes Agent
ZBXNEXT-7661 Implemented thresholds for dynamic background color in item value widget Frontend
ZBXNEXT-7830 Implemented better menu structure Frontend
ZBXNEXT-7832 Renamed setting "Dynamic item" to "Enable host selection" for URL, Plain text, Graph prototype, Item value, Graph classic widgets Frontend
ZBXNEXT-7852 Added incremental active check refresh for active agents Documentation Agent Proxy Server
ZBXNEXT-6406 Removed requirement of host interface for server-originated checks Frontend Proxy Server

Bug Fixes

ZBX-17300 Fixed handling of context menu in the Map builder Frontend
ZBX-21656 Fixed clone buttons on template editing form that were not working in Safari 16 Frontend
ZBX-20505 Fixed subfilter counters displaying incorrect values in Monitoring => Graph view Frontend
ZBX-21733 Improved performance of system information and queue calculation to reduce history syncer locking Server
ZBX-21452 Fixed wmi.get* crash of zabbix_agentd for Windows Agent
ZBX-21673 Fixed read operations per second during preprocessing in Ceph by Zabbix agent 2 template Templates
ZBX-21724 Fixed updating of lastaccess for proxies in availman if active proxy is used Proxy Server
ZBX-21582 Optimized HPE Synergy template to spread load across preprocessing workers Templates
ZBX-21708 Fixed PHP TypeError when opening non-existing dashboard Frontend
ZBX-21606 Fixed "Allowed hosts" field in HTTP agent item Frontend
ZBX-19224 Added ability to unset headers in web scenario API
ZBX-21709 Fixed database upgrade patch to skip unexpected invalid service downtime instead of failing Server
ZBX-21562 Fixed maps not working with elements that contain disabled triggers Frontend
ZBX-21637 Fixed Zabbix server to rerun auto registration attempt in 120 seconds if host is deleted Agent
ZBX-21537 Fixed history syncers being stuck while waiting on system information being collected Server
ZBX-21025 Fixed the allowed argument range limits for char() trigger function Server
ZBX-21484 Updated documentation for SMART templates by Zabbix agent 2 Templates
ZBX-21725 Fixed configuration cache shared memory leak when removing vault macros Proxy Server
ZBX-21510 Made NodeAddress use ListenIP and ListenPort if not explicitly specified Server
ZBX-21706 Fixed double precision update patch for TimescaleDb Server
ZBX-19512 Fixed debug info block content refresh after changing table content in Monitoring -> Problems page Frontend
ZBX-21682 Removed unnecessary horizontal separator from Host interface Frontend
ZBX-21610 Fixed problem with sysctl() kern.proc.args API bug on FreeBSD <= 8.2 Agent
ZBX-21672 Fixed event source in mediatypes Templates
ZBX-21693 Fixed repeated lines in templates Templates
ZBX-17060 Fixed unexpected interface connection mode change during autoregistration Server
ZBX-21388 Fixed Zabbix agent 2 plugin read error and updated plugin support dependency for Zabbix agent 2 Agent
ZBX-20864 Fixed format specifier definitions on AIX Agent Proxy Server
ZBX-21605 Fixed possible PHP runtime errors in several modal popup dialogs Frontend
ZBX-21097 Fixed filtering by "Resource ID" and "Recordset ID" fields for "Audit log" page API Frontend
ZBX-21580 Optimized HPE MSA 2060 Storage by HTTP template to spread the load across preprocessing workers Templates
ZBXNEXT-5535 Implemented preselected host pattern filter for autosuggest used in items pattern field in graph widget Frontend
ZBX-21579 Optimized HPE MSA 2040 Storage by HTTP template to spread the load across preprocessing workers Templates
ZBX-21421 Fixed variable spelling in Kubernetes cluster state by HTTP template Templates
ZBX-21544 Fixed value of query field being truncated to the first "=" sign when pressing parse button Frontend
ZBX-21581 Optimized HPE Primera template to spread the load across preprocessing workers Templates
ZBX-21456 Fixed net.tcp.socket.count problem on Zabbix agent 2 when ipv6 is disabled Agent
ZBX-21009 Fixed double escaping in trigger function upon host autoregistration Server
ZBX-21664 Fixed Zabbix server crashing during database upgrade when converting service times and there is downtime inside uptime Server
ZBX-21466 Fixed race condition in Zabbix agent 2 leading to permanently stuck mount reads Agent

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 6.4.0.

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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