Release Notes for Zabbix 4.0.3rc2

Zabbix Team is pleased to announce the availability of Zabbix 4.0.3rc2.

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 4.0.3rc2. Download it from 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

ZBX-15202 Implemented widget pausing methods in dashboard; made graph widget paused when using selection box or opening a tooltip Frontend

Bug Fixes

ZBX-15333 Fixed zoomout on doubleclick in graph widget Frontend
ZBX-15236 Fixed display parent host groups without hosts in multiselect Frontend
ZBX-15206 Fixed deprecated net-snmp attribute Proxy Server
ZBX-15067 Fixed configuration sync of interfaces without hosts Proxy Server
ZBX-15238 Fixed updating nextcheck time in discovery rules to avoid overlaps between discovery executions Proxy Server
ZBX-13673 Fixed regexp validation when pattern contain slash character Frontend
ZBX-14528 Fixed incorrect keycode handling in multiselect input fields Frontend
ZBX-15124 Fixed trigger overview behavior when show "any" API Frontend
ZBX-14648 Fixed performance with deletion of item in template linked to many hosts API
ZBX-9011 Added new LLD macros for vmware HV low-level discovery Proxy Server
ZBX-15105 Fixed colorpicker tooltip update Frontend
ZBX-14928 Fixed "check now" being executed for active items and templates API Frontend
ZBX-15153 Fixed custom interval validation; fixed parsing of custom intervals when user macros context contains forward slash Frontend
ZBX-15069 Fixed community default value in edit scenario Frontend
ZBX-9038 Fixed memory of performance counters consumed during vmware update Proxy Server
ZBX-8383 Updated Tomcat template for compatibility with recent Tomcat versions Installation Templates
ZBX-15078 Fixed API authentication for ldap users having gui access disabled API
ZBX-14880 Fixed misleading ldap authentication error messages API Frontend
ZBX-14877 Fixed style of disabled action on high contrast theme Frontend
ZBX-14606 Removed strict-transport-security header from frontend Frontend
ZBX-15020 Fixed negative time selector offset when selecting time range in graph Frontend
ZBX-14977 Fixed creation of unneeded database record if host prototype inventory mode is disabled; fixed validation for host and host prototype inventory mode API
ZBX-15146 Fixed SQL error occurred when too long IP address is attempted to be written in database API
ZBX-15148 Fixed web scenario item selection in SVG graph widget Frontend
ZBX-15107 Fixed error handling in logrt[] items if regular expression for file name is not valid Agent
ZBX-14800 Fixed resolving of functional macros in graph widget name Frontend
ZBX-15200 Fixed host, trigger and item count calculation; fixed required performance calculation Proxy Server
ZBX-15158 Fixed graph name for cache usage in proxy and server templates Installation Templates
ZBX-15178 Fixed wrong behaviour when referencing unexisting capture groups in item regexp preprocessing, general pcre code improvements Agent 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 4.0.3.

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 4.0 Manual