Release Notes for Zabbix 4.0.22

29 June 2020

Zabbix Team is pleased to announce the availability of Zabbix 4.0.22.

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 http://www.gnu.org/copyleft/gpl.txt.

This document contains the release notes for Zabbix 4.0.22. Download here.

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

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New Features and Improvements

ZBXNEXT-3588

Improved Zabbix server performance when evaluating trigger, discovery, autoregistration and internal actions Server

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Bug Fixes

ZBX-18057	Fixed security vulnerability CVE-2020-15803 (Stored XSS attack on URL widget) Frontend
ZBX-17720	Exclude disabled items from preprocessing configuration sync Proxy Server
ZBX-17851	Fixed possible deadlocks when deleting escalations Server
ZBX-17406	Fixed null value for a field of CompositeData in JMX discovery Tools
ZBX-17891	Changed log, log.count monitoring to ignore file modification time Agent
ZBX-17697	Fixed strict DFSG compliance issue in using minified jQuery sources Frontend
ZBX-16461	Fixed recovery expression for "link down" trigger and updated for following zabbix template guidelines Templates
ZBX-17702	Fixed escalation cancellation message not being sent when action is disabled Server
ZBX-17480	Fixed context of {$TEMP_CRIT} macro in Temperature trigger prototype Templates
ZBX-17694	Fixed high memory consumption when using dependent items Proxy Server
ZBX-17780	Fixed memory leak Agent
ZBX-17577	Fixed remove of selected items in multiselect Frontend
ZBX-17226	Fixed confusing error message being displayed if dbversion table cannot be found Frontend
ZBX-17801	Shadow global auto_increment MySQL variables only for proxy Proxy Server

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Installation and Upgrade Notes

Installation

See Zabbix documentation for full details.

Upgrade

See Upgrade procedure for upgrade options and instructions. For version specific upgrade notes, see Upgrade notes for 4.0.22.

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.

• Zabbix Enterprise Support
• Zabbix Training
• Zabbix Development services

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References

Zabbix 4.0 Manual