Release Notes for Zabbix 2.4.4

Zabbix Team is pleased to announce the availability of Zabbix 2.4.4.

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 2.4.4. Download it from download.

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-2354 Separated VMware performance collector based statistic retrieval from VMware data retrieval and added items to monitor custom performance counters Proxy Server
ZBX-1357 Enabled Chinese (China) locale to be displayed by default API Frontend
ZBX-1357 Updated Brazilian Portuguese, Chinese (China), Japanese, Korean, Polish, Russian and Slovak translations; thanks to Zabbix translators API Frontend
ZBXNEXT-2160 Added support for extended IP ranges in network discovery and action conditions API Frontend Proxy Server

Bug Fixes

ZBX-9284 Added Zabbix log file locking to avoid incomplete logging on log file rotation Agent Proxy Server
ZBX-591 Fixed web monitoring, VMware monitoring, Ez Texting alerts and net.tcp.service{.perf}[https] items to use the SourceIP configuration parameter Agent Proxy Server
ZBX-9143 Improved proc.num under Windows to handle more processes Agent
ZBX-9232 Fixed processing of eventlog messages to avoid incomplete messaging for events which description could not be found Agent
ZBX-9257 Fixed displaying missing history links in trigger context menu Frontend
ZBX-9257 Added missing host prefix before items in trigger context menu if trigger belongs to multiple hosts Frontend
ZBX-9257 Changed displaying host list from vertical to horizontal if trigger belongs to multiple hosts in Monitoring->Trigger status page Frontend
ZBX-9285 Fixed memory leak when processing host prototypes Server
ZBX-9279 Optimized VMware requests to reduce amount of transferred data Proxy Server
ZBX-9087 Fixed DB_ID validation expression to properly validate upper bound of received value and fixed various front-end forms not properly validating IDs Frontend
ZBX-7719 Added configurable timeout for VMware data gathering requests Proxy Server
ZBX-9241 Fixed possible vfs.fs.discovery item crash on AIX systems Agent
ZBX-9104 Fixed repeated error messaging if SSH channel failed to close Proxy Server
ZBX-9183 Fixed eventlog message collecting in case of error formatting the log message; thanks to Kodai Terashima Agent
ZBX-9224 Fixed audit log for failed login attempts API Frontend
ZBX-9233 Fixed processing of bogus negative value of performance counter Agent
ZBXNEXT-2354 Fixed VMware virtual machine network and disk transmission rates being reported in kilobytes rather than bytes Proxy Server Templates
ZBX-8930 Fixed map import displaying incorrect message when map had non-existing sub elements Frontend
ZBX-8448 Fixed host and template permissions validation when an object belongs to both read and read-write groups API Frontend
ZBX-8448 Added read-only groups in host and template edit forms as grayed out when object belongs to both read and read-write groups Frontend
ZBX-8448 Fixed template edit form losing host and template linkages by adding grayed out objects when they belong to both read and read-write groups Frontend
ZBX-8448 Fixed trigger and trigger prototype "enable/disable" action when trigger belongs to read-only group Frontend
ZBX-9013 Fixed action operation incorrect sorting in edit form which sometimes caused duplicate and missing operations Frontend
ZBX-8993 Added check for a valid reference of a global regular expression in LLD rules Server
ZBX-9218 Fixed agent crash if error message is not set in loadable module Agent
ZBX-9088 Fixed parsing of SNMP traps for correct processing of delayed traps Proxy Server
ZBX-9093 Fixed API host.create method for MySQL strict mode when given partial data in "inventory" property API
ZBX-9168 Fixed incorrect keys and unified key parameters in the item key helper Frontend
ZBX-8584 Fixed vmware eventlog items sometimes returning duplicate values Proxy Server
ZBX-9206 Fixed agent crash in case net.tcp.service[] item is used as an active agent item with an unsupported first parameter Agent Proxy Server
ZBX-9195 Fixed lastlogsize and mtime being updated on proxy for unsupported items; thanks to Yoshinori Komuro for patch Proxy
ZBX-9010 Fixed audit actions not displaying most recent logs when record count exceeds maximum Frontend
ZBX-8555 Fixed 'broken pipe' errors when executing remote commands. This was happening because pipe was closed without reading from it Agent Proxy Server
ZBX-8828 Made ICMP items go unsupported if ICMP packets cannot be sent to their host Proxy Server
ZBX-9163 Fixed SNMPERR_TOO_LONG error being wrongly treated as a network error; thanks to Santal for patch Proxy Server
ZBX-6047 Fixed system.boottime and system.uptime returning incorrect results on Solaris zones Agent
ZBX-8874 Fixed LLD rule form flexible interval field being submitted when other form fields are in focus Frontend
ZBX-9169 Fixed upgrade of the proxy database with several discovery rules Installation
ZBX-9176 Fixed {DISCOVERY.SERVICE.NAME} macro to expand properly for HTTPS and Telnet services Server
ZBX-9185 Fixed upgrade procedure in case database version is greater than version of the binary Installation
ZBX-9177 Improved host and item name column widths on Monitoring / Latest data page Frontend
ZBX-9154 Fixed compilation error with Oracle backend Proxy Server
ZBX-9042 Unified "mass update" spelling in trigger configuration page Frontend
ZBX-9153 Fixed vmware.version item key being listed as vmware.eventlog in the item key helper Frontend
ZBX-8950 Fixed "selecIconMap" option in map.get method API
ZBX-8405 Fixed typo in item key helper for system.cpu.num item description Frontend
ZBX-8846 Fixed non-existent page displaying Frontend
ZBX-9126 Fixed processing of trigger/graph prototypes in case when all item prototypes in trigger/graph prototypes were changed Server

Installation and Upgrade Notes


See Zabbix指导手册。 for full details.


See 升级指南 for upgrade options and instructions. For version specific upgrade notes, see Upgrade notes for 2.4.4.

Commercial support

Zabbix Company provides a full range of Professional Services. We also provide trouble-free 升级服务 for easy migration from earlier versions of Zabbix. Please 联系我们 for pricing and more details.


Zabbix 2.4 Manual