Release Notes for Zabbix 3.4.5rc1

Zabbix Team is pleased to announce the availability of Zabbix 3.4.5rc1.

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 3.4.5rc1. 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

ZBXNEXT-4002 Implemented support for Elasticsearch as history storage Frontend Server
ZBX-12809 Implemented overlay dialog centering using javascript Frontend

Bug Fixes

ZBX-13262 Fixed cookie http-only attribute to prevent XSS attacks Frontend
ZBX-13261 Fixed reflected XSS vulnerability in popup forms Frontend
ZBX-13260 Fixed permissions check in script execution form Frontend
ZBX-13190 Fixed check for permissions to enable/disable actions Frontend
ZBXNEXT-4223 Performed network templates cleanup Templates
ZBX-12974 Fixed TLS connection to passive proxy error handling Server
ZBX-12714 Fixed overflow property of svg Frontend
ZBX-12925 Fixed logic of commit/rollback operations Proxy Server
ZBX-13088 Fixed incomplete data in notification reports for yearly report types Frontend
ZBX-12887 Fixed alert error message visibility to unrelated users Server
ZBX-12497 Improved VMware event log data collection and processing Proxy Server
ZBX-8054 Relieved windows agent of dependency on MFC Agent
ZBX-13024 Fixed missed url search part in request login parameter Frontend
ZBX-12798 Added --with-libpcre-lib configure option Installation
ZBX-13044 Fixed undefined index when setting strict-transport-security http header Frontend
ZBX-12897 Fixed error causing empty list in popup window when opened from page having host group filter Frontend
ZBX-12948 Fixed percentile visibility in dashboard graph widgets Frontend
ZBX-12655 Added filter on event details page to show messages sent to users only from same groups API Frontend
ZBX-13061 Fixed memory leak in preprocessing manager Server
ZBX-12232 Fixed mysql m4 configuration script for mariadb C connector Installation
ZBX-12663 Fixed retaining the scrollbar position on page reload Frontend
ZBX-12247 Fixed multiselect not showing results for read-only objects in screen configuration Frontend
ZBX-13016 Fixed warning message shown by deprecated PHP 7.2 function create_function() Frontend
ZBX-12130 Fixed max length validation in textarea fields Frontend
ZBX-13027 Fixed floating range validation during conversion from uint64 to float Server
ZBX-12975 Fixed possibility of foreign key constraint failure due to events being removed before trigger data storage period expires Server
ZBX-11426 Fixed potentially incorrect delete procedure for problems and events Server
ZBX-8049 Fixed zabbix[java,,ping] to stay supported when java gateway is down Server
ZBX-12895 Improved performance of DB patch for updating data in the alerts table Installation
ZBX-12971 Fixed possibility of host availability being stuck in unknown state when monitoring though proxy Server
ZBX-12971 Fixed Zabbix proxy not to send same host availability more than once Proxy
ZBX-12800 Fixed incorrect trigger dependency calculation when processing dependent triggers in the same history syncer batch Server
ZBX-10754 Fixed inheritance of template properties in web scenarios API
ZBX-12926 Fixed translation string on administration general housekeeping page Frontend
ZBX-12738 Added missing key "vfs.dir.size" for active agent in item edit form Frontend
ZBX-12856 Fixed wrong default value for host filter when adding dependent trigger in trigger edit form Frontend
ZBX-12082 Fixed possibility to select triggers with same name in multiselect Frontend
ZBX-9567 Added missing fields to webscenario data handling Server
ZBX-11051 Fixed displaying highest severity when dashboard filter options contain unacknowledged only Frontend
ZBX-10710 Fixed CPU guest time utilization accounting in Linux Agent
ZBX-12978 Improved performance of preprocessor manager, alert manager/worker, IPMI manager/poller by reducing frequency of log rotation checks that handle stdout/stderr Server
ZBX-12936 Improved SQL performance by updating proxy last access in bulks Server
ZBX-12705 Added check for collisions and unsupported characters in macro names in jmx.discovery Java gateway
ZBX-12970 Fixed processing of alerts when related event is removed Server
ZBX-12544 Fixed compilation warnings Agent

Installation and Upgrade Notes


See Zabbixマニュアル for full details.


See Upgrade procedure for upgrade options and instructions. For version specific upgrade notes, see Upgrade notes for 3.4.5.

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 営業への問い合わせ for pricing and more details.


Zabbix 3.4 Manual