Release Notes for Zabbix 5.2.5

Zabbix Team is pleased to announce the availability of Zabbix 5.2.5.

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 5.2.5. 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-6385 Added template "Apache Ignite by JMX" Templates
ZBXNEXT-6301 Extended set of collected VMware metrics for VM and HV Proxy Server
ZBXNEXT-6339 Added smart plugin to support S.M.A.R.T monitoring in Zabbix Agent 2 Agent
ZBXNEXT-6437 Added native support for system.sw.packages plugin in Zabbix agent 2 Agent
ZBXNEXT-6306 Added native linux support for key vm.memory.size in Zabbix agent 2 Agent
ZBXNEXT-6443 Added sha256() function to JavaScript preprocessing Proxy Server
ZBXNEXT-5809 Added VictorOps media Templates
ZBXNEXT-6395 Added template "Jenkins by HTTP" Templates
ZBXNEXT-6386 Raised javascript heap limit from 10 megabytes to 64 megabytes; fixed memory leak when heap limit is reached Proxy Server
ZBXNEXT-6441 Added function to configure HTTP authentication for embedded scripts Proxy Server
ZBXNEXT-6183 Added md5 checksum computation to preprocessing Proxy Server
ZBXNEXT-6399 Added support of host and item macros for Script item parameters Frontend Server

Bug Fixes

ZBX-19025 Fixed usage of LIMIT in SQL in user.update and user.delete API API
ZBX-19029 Fixed Zabbix server and Zabbix proxy not remembering last log size when preprocessing is used Proxy Server
ZBX-17543 Fixed error in case if wmi.getall returned no items Agent
ZBX-18377 Fixed expression in "Memory usage is too high" trigger of "Template DB Redis" Templates
ZBX-18886 Implemented proper resource cleanup when sender terminates by signal Agent
ZBX-18963 Fixed preprocessing for archivelog items in Oracle Templates Templates
ZBX-18741 Fixed numeric value encountered Frontend
ZBX-18825 Fixed last year period calculation in service availability report daily mode Frontend
ZBX-18638 Removed triggers of the "Temperature" items, added the "Temperature sensor condition" items with triggers, removed unnecessary macros Templates
ZBX-18720 Fixed full clone of discovered host having duplicate interfaces Frontend
ZBX-18449 Reworked trigger API validation API
ZBX-18887 Fixed user session expiration when notification checks are performed in background Frontend
ZBX-18209 Fixed RegEx delimiter not being escaped in macro resolver Frontend
ZBX-18817 Fixed missing API and import validation for "unsupported check" preprocessing step API Frontend
ZBX-18237 Fixed problem description icon in Monitoring->Problems in compact view mode being displayed above problem name Frontend
ZBX-18945 Fixed Zabbix agent 2 build Raspbian 10 Agent
ZBX-18309 Fixed reading log files with NULL character in log line Agent
ZBX-18872 Fixed system.sw.os[name] for cases without quotation mark in /etc/os-release Agent
ZBX-18885 Fixed SNMP agent item not accepting values that are bigger than 2KB Proxy Server
ZBX-18874 Fixed incorrect links in templates and webhooks documentation Templates

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 5.2.5.

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 Contact sales for pricing and more details.


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