Release Notes for Zabbix 2.2.5rc1

Zabbix Team is pleased to announce the availability of Zabbix 2.2.5rc1.

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 2.2.5rc1. 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

ZBX-8278 Prepared frontend for mbstring.internal_encoding ini option deprecation in php 5.6+

Bug Fixes

ZBX-8405 Fixed typos in item descriptions for JMX Tomcat, FreeBSD, HP-UX, Linux and OpenBSD templates
ZBX-8011 Fixed escalator giving false 'no media defined' errors
ZBX-8359 Changed servers timer processes title line to display amount of hosts that have changed maintenance status; active maintenance period count is no longer displayed
ZBX-8270 Fixed disk space reporting for large AIX file systems (>= 16 TB)
ZBX-8422 Removed php mutex locking from server code because of not being used and incompatible licensing issues
ZBX-8394 Corrected misspelled "template" variables in API
ZBX-8248 Fixed vfs.file.regexp, vfs.file.regmatch and to handle carriage returns properly
ZBX-8285 Fixed widget "History of events" and frontend messaging to use visible host names
ZBX-8151 Fixed XXE vulnerability on XML import using obsolete libxml versions; thanks to pnig0s@Freebuf for the report
ZBX-8354 Removed period in caption for "Distribution of values for multiple periods" bar report
ZBX-8092 Fixed items being polled at the same time after host becomes enabled
ZBX-8324 Fixed there being too many expressions in a list in a SQL query
ZBX-8373 Fixed the argument to system.cpu.num[] being ignored on HP-UX

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 2.2.5.

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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