Release Notes for Zabbix 1.8.5rc1

Zabbix Team is pleased to announce the availability of Zabbix 1.8.5rc1.

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 1.8.5rc1. Download it from downloads.

The following sections describe the release in details and provide late-breaking or other information that supplements its main documentation.

Fixes and minor improvements

ZBX-3672 fixed possible hang of history syncers when a zabbix[log] message is added while processing history data
ZBX-3644 fixed API permission checks for applications, items and triggers
ZBX-3673 fixed processing of operators & and | in trigger and calculated items expressions
ZBX-3660 fixed macro resolving in map labels
ZBX-3659 API exists() methods now return true/false instead of true/error
ZBX-2997 added global regular expression to be sent to proxies (for use with log, logrt and eventlog items)
ZBX-1907 changed logging - when a proxy fails to connect to the server it logs "Still unable to connect" message max once a minute
ZBX-3548 added IPV6_V6ONLY flag (where defined) for binding IPv4 and IPv6 interfaces separately
ZBX-3626 fixed bugs on map export: duplicate image decoding and inserting duplicate map elements; thanks to Takanori Suzuki
ZBX-3453 improve performance of cpu collector
ZBX-3610 fixed active agent full buffer bug - stop processing active checks till the buffer is sent
ZBX-3566 fixed error in administration->notifications and added a hint when no mediatypes are defined
ZBX-3628 fixed server crash while processing notification messages with an already deleted trigger
ZBX-3075 fixed a regex bug with zero-length strings
ZBX-3621 changed the maximum number of processes for Zabbix daemons
ZBXNEXT-448 added trigger function logeventid that matches the last event ID to a regex
ZBX-1419 improve and fix database upgrade patches for older versions
ZBX-3576 fixed showing triggers with disabled items in monitoring
ZBX-3483 added missing fields in items mass update
ZBX-3435 fixed error that sometimes appear after profile edit
ZBX-2616 bundled DejaVu font upgraded from 2.32 to 2.33
ZBX-1557 changed process_ping logic to return an error if fping doesn't give a value (or '-') for any of the hosts but outputs something
ZBX-3430 fixed disappeared hints for "SSH", "Telnet" and "Database Monitor" item types in item form
ZBX-3578 added arguments to the output when using agent with '-p' or '-t', modified default arguments in win32.c and common.c
ZBX-3514 removed non "regexp" triggers from item log-form menu
ZBX-3584 fixed allowed_hosts set to 'localhost' for items by default
ZBX-3568 fixed processing of trigger functions with macros in item key parameters in notifications
ZBX-3076 disabled generation of events in case if some items or hosts in trigger expression are not active
ZBX-3562 fixed user macros in map element label expressions
ZBXNEXT-508 added dayofmonth to trigger functions
ZBX-3352 made item Y axis min/max items also change when used in screen with Dynamic enabled
ZBX-3523 fixed error when open monitoring->maps and last viewed map was removed
ZBX-3557 fixed possible incorrect usage of internal array pointers in frontend
ZBX-2979 fixed trigger function time() test
ZBX-3563 fixed host group filter in graph selection popup
ZBX-3544 fixed user login method resetting attempts
ZBX-3555 fixed possible pollers hang while processing[] checks
ZBXNEXT-408 added zabbix[process,...] internal checks
ZBX-2262 added `hosts_templates_2' index
ZBX-3537 trigger events are now sorted by timestamp
ZBX-3472 changed item and discovery rule form to display SSH and SNMPv3 auth fields correctly when changing item type
ZBX-3542 reduced the amount of debugging output for configuration cache
ZBX-3536 made SNMP checks work when DNS resolves to IPv6 address; thanks to Marc Dequènes
ZBX-3541 fixed processing of nodata() function
ZBX-3126 all checkboxes in map and screen import are now "on" by default
ZBX-3158 improved links in map element menu
ZBX-3532 fixed add item to trigger expression from popup menu
ZBX-1357 fixed confusing date format in network maps
ZBX-3516 fixed items and hosts disappearing from configuration cache indexes
ZBX-3479 fixed possible hang of agents while processing scripts or net.tcp.service* checks
ZBX-3514 fixed log trigger wizard
ZBX-3515 fixed names of SNMPv3 security levels, again
ZBX-3411 fixed trigger filter update when changing host
ZBX-3431 fixed severity for log and eventlog or mixed
ZBX-2913 fixed timeout handling in processing of* checks
ZBX-3176 removed navigation dropdown from applications screen
ZBX-3494 added database monitor items to the queue calculation
ZBX-3454 fixed clearing item edited using by Trigger-wizard
ZBX-3481 fixed massAdd for applications
ZBX-3480 fixed possible crash of server after shutdown of ORACLE server
ZBX-3457 in trigger wizard, use double symbol references past 26 entries
ZBX-983 fixed error when updating trigger
ZBX-974 recompress some images with pngcrush
ZBX-3446 fixed possible hang of pollers - added timeout handler for external scripts
ZBX-1690 fixed undefined index when creating action with name that already exists
ZBX-3461 fixed names of IPMI pollers in debug output and the number of items they take
ZBX-3100 fixed messages in popup when no proxies or discovery checks defined
ZBX-3138 fixed bug when disabling application, webitems were disabled too
ZBX-2951 made interval hidden for trapper items
ZBX-2867 changed order of "Discovery" and "IT services" in configuration menu
ZBX-3460 forbid saving host with enabled IPMI but without IPMI address
ZBX-3047 fixed Zapcat compatibility for trigger expressions
ZBX-2912 added check for valid UTF-8 characters in the incoming data
ZBX-1346 add more user parameter examples
ZBX-2922 changed log level from warning to debug for some messages
ZBX-3440 Added pagination to slide and discovery configuration
ZBX-3433 fixed removing deleted passive proxies from queue
ZBX-416 fixed PostgreSQL errors in configuration sender module when using DM setup
ZBX-3346 fixed items being polled more frequently than necessary
ZBX-3409 fixed semaphore and shared memory access permissions
ZBX-3173 made server-side JSON parser ignore whitespace better
ZBX-3425 updated Brazilian Portuguese translation; thanks to Murilo Moreira de Oliveira
ZBX-3403 fixed SQL statements for auto registration and discovery operations
ZBX-3403 removed UNIQUE constraint for autoreg_host_1 index
ZBX-3414 expressions for triggers with web items are marked as error in trigger wizard
ZBX-3406 better API validation
ZBX-3413 added escaping of parameters used in LIKE SQL statements
ZBX-3391 fixed wrong comparison operators used for strings
ZBX-1346 document LogSlowQueries configuration parameter
ZBXNEXT-612 added mapname URL parameter for monitoring->maps
ZBX-886 remove duplicate translation strings
ZBX-3384 fixed server crash in a distributed monitoring setup with PostgreSQL
ZBX-3274 fixed SQLite3 semaphore errors while starting server or proxy
ZBXNEXT-614 add Slovak translation; thanks to Marcel Hecko
ZBX-2914 add Ubuntu upstart files; thanks to S. Canchon
ZBX-3381 negative multipliers for items with value type "numeric (float)" are now allowed
ZBX-1357,ZBX-3462 updated Japanese translation; thanks to Kodai Terashima
ZBX-3385 fixed trigger status change record in audit log
ZBX-2825 make profiles form redirect to the last visited page on save or cancel
ZBX-3383 fixed error in audit log when filtering by Macro or Template
ZBX-3378 updated Russian translation; thanks to dotneft and zalex_ua
ZBX-3350 fixed minor interface bug and it is now not possible to add host name longer than 64 chars
ZBX-3341 fixed host export - valuemap property is now exported as expected
ZBX-3338 updated Ukrainian translation; thanks to zalex_ua
ZBX-954 fix minor typos
ZBX-1419 don't print an informative message during upgrade if no orphan hosts were found

Installation and Upgrade Notes


See Zabbix Manual for full details.


Recompile Zabbix binaries and update front-end PHP files. Execute a database patch if migrating from Zabbix 1.8.x. See Zabbix Manual for a detailed upgrade procedure.

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.


Zabbix 1.8 Manual

Get started in 10 minutes, absolutely FREE

Download Zabbix

Zabbix is true Open Source. No limits or hidden costs.