Release Notes for Zabbix 5.0.20

Zabbix Team is pleased to announce the availability of Zabbix 5.0.20.

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 5.0.20. 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-7409 Added native support for the vfs.dir.size and vfs.dir.count keys in Zabbix agent 2
ZBXNEXT-7101 Implemented sleep function into JS engine
ZBXNEXT-6861 Updated Zabbix proxy templates according to the latest guidelines
ZBXNEXT-7078 Added template for pfsense
ZBXNEXT-6875 Added native support for the system.hw.chassis and system.hw.devices keys in Zabbix agent 2

Bug Fixes

ZBX-20293 Fixed icmpping items group becomes not supported due to error in interval detection
ZBX-20387 Fixed default language of the setup routine for logged in superadmin users
ZBX-20316 Added macro for password and changed conf file in postgresql by user parameters template
ZBX-20303 Fixed trigger name in MSSQL template
ZBX-19565 Fixed agent2 to return the same 255 code as agent1 when key does not find service
ZBX-20204 Fixed range check for perfcounter in agent2 on windows
ZBX-20405 Improved timeouts in JS
ZBX-20258 Fixed tags processing for Zammad media type
ZBX-20113 Fixed items value map for VMware template
ZBX-19815 Fixed multiple data convertion issues in import between versions 1.8/2.0 and 5.0
ZBX-19669 Fixed success message not showing when no fields were changed in Administration->Authentication page
ZBX-20269 Added handling of performance counter with negative denominator value
ZBX-20143 Fixed tcp timeout not working in net.dns.record
ZBX-20292 Fixed LLD overrides for item for particular corner-case
ZBX-19351 Fixed event correlation query failure on Oracle
ZBX-20249 Fixed escalator query failure on Oracle
ZBX-20330 Added handling of nan/inf values in ipmi discovery
ZBX-19012 Fixed {HOST.NAME} macros substitution

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 5.0.20.

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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