Release Notes for Zabbix 2.4.2rc1

Zabbix Team is pleased to announce the availability of Zabbix 2.4.2rc1.

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 2.4.2rc1. 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-1357 Updated Brazilian Portuguese, Greek, Italian, Japanese, Polish, Slovak and Spanish translations; thanks to Zabbix translators API Frontend
ZBX-8503 Increased limitation of command length for remote commands with agent Agent

Bug Fixes

ZBX-8978 Fixed propagation of the SNMP bulk flag into discovered hosts Server
ZBX-8978 Fixed propagation of the interfaces into discovered hosts in same order as in the parent host Server
ZBX-8970 Fixed interfaces list not being displayed correctly for discovered hosts Frontend
ZBX-8849 Fixed redundant linking with -lcrypto when linking with Net-SNMP Installation Proxy Server
ZBX-8913 Fixed JSON validation sometimes failing to process utf-8 sequences Agent Proxy Server
ZBX-8951 Fixed agent crash on HP-UX 11.31 when processing "net.if.discovery" item Agent
ZBX-8901 Added ability to use scientific notation and floats without leading 0 to Configuration -> Hosts -> Discovery -> Item Prototypes Frontend
ZBX-6542 Updated description of HousekeepingFrequency parameter in the default server and proxy configuration files Documentation
ZBX-8833 Fixed dynamic SNMP item cache working incorrectly for hosts with multiple SNMP interfaces, optimized cache performance Proxy Server
ZBX-8904 Fixed item.get API to not read all host interfaces when option "selectInterfaces" is used API Frontend
ZBX-8538 Added Net-SNMP retry of 1 for cases where Zabbix will not be retrying itself Proxy Server
ZBX-8538 Changed the strategy to decrease the optimal number of variables two times only Proxy Server
ZBX-8232 Fixed performance issues in maps Frontend
ZBX-8948 Fixed memory leak when checking Template condition during action processing Server
ZBX-6353 Improved history cache performance when it's flooded with data from less than 1000 items Server
ZBX-8916 Fixed "lastlogsize" not being updated in the configuration cache when values are received from the agent Proxy Server
ZBX-8877 Fixed filters not hiding/showing for IE11 Frontend
ZBX-8794 Fixed parsing of runtime control options and related error messages Agent Proxy Server
ZBX-8885 Fixed building of Zabbix daemons with IBM DB2 support on systems with newer gcc compilers Installation
ZBX-8791 Fixed importing sysmaps when host elements are linked and have a trigger assigned to the link Frontend
ZBX-8072 Fixed bug when long messages were not truncated to 2KB when inserting into alerts table on DB2 databases Installation
ZBX-6174 Fixed "skipDependent" option in trigger.get API call to correctly handle cases when triggers on which they depend are disabled API
ZBX-8887 Fixed error messages when saving graph with invalid width and height Frontend
ZBX-8699 Fixed zbx_sleep_loop() to handle correctly signal arrival Agent Proxy Server
ZBX-8793 Fixed processing of snmp value to represent it as integer Proxy Server
ZBX-8726 Fixed warning messages shown by deprecated PHP 5.6 options "mbstring.internal_encoding" and "always_populate_raw_post_data" Frontend
ZBX-8817 Fixed incorrect clearing of web scenario item history and trends API Frontend
ZBX-8830 Fixed map pop-up menu "Triggers" link being always disabled for host group map elements Frontend
ZBX-5561 Fixed configuration failure during cross compilation; thanks to Christof Lauber for the patch Installation
ZBX-8621 Added validation of received SNMP responses and warnings in case SNMP responses are bad Proxy Server
ZBX-8764 Added missing validation for resource ID in screenitem.create and screenitem.update API API Frontend
ZBX-8754 Fixed crash in escalator when processing an alert without an user, but with a media type set 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 2.4.2.

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 2.4 Manual