Release Notes for Zabbix 4.2.1

18 Apr 2019

Zabbix Team is pleased to announce the availability of Zabbix 4.2.1.

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 http://www.gnu.org/copyleft/gpl.txt.

This document contains the release notes for Zabbix 4.2.1. Download it from downloads.

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

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New Features and Improvements

ZBXNEXT-5144

Increased socket response size limit

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Bug Fixes

ZBX-16019	Fixed host.conn, host.ip, ipaddress and host.dns macros expansion in global scripts
ZBX-16020	Fixed uncontrolled memory allocation in regex preprocessing steps
ZBX-15911	Fixed guest sign in visibility for disabled guest user group in login page
ZBX-15977	Fixed validation of host interface when multiple interfaces set as main interface
ZBX-15955	Fixed security vulnerability - accepting connections from not allowed addresses
ZBX-11393	Fixed when long snmp oid expands screen dimensions
ZBX-15464	Fixed error message for image uploads
ZBX-10243	Fixed not encoded ampersand for in url parameter
ZBX-15972	Fixed possible crash of the windows agent when used "net.dns" item key
ZBX-15674	Fixed map status to be displayed ok if there are no problem in submaps
ZBX-15970	Fixed invalid update intervals being reported on zabbix server when monitored through zabbix proxy
ZBX-15643	Fixed invalid to valid numbers conversion by del_zeros
ZBX-15444	Fixed trimming allowed characters from numeric values
ZBX-15409	Improved zabbix java gateway error logging usability by adding item key to error message
ZBX-15844	Fixed inability to start zabbix server if alert manager process is late after alerters; thanks to mikhail makurov for the patch
ZBX-11043	Implemented a better network discovery filter
ZBX-10937	Fixed top right global search field autocomplete not showing results when host name is being typed not first character and technical name when it differs from visible name
ZBX-10861	Changed user name and password fields from being mandatory to optional in web scenarios and http agent type items
ZBX-10889	Improved logging performance when high debuglevel is used
ZBX-15762	Fixed api returns "countoutput", "select*": "count" results and "suppressed" property as integer
ZBX-15642	Fixed bigint limit in the user group updating forms
ZBX-2494	Fixed sorting of items, item prototypes, lld rules and screens to avoid deadlocks in database between server and frontend
ZBX-15768	Fixed line length above widgets on global search page
ZBX-10404	Fixed password being passed in plain text in media type edit form
ZBX-15734	Fixed dashboard widgets incorrect placement while dragged
ZBX-15563	Fixed svg graph metric generation in situation when metric have big values
ZBX-15139	Fixed element removing from list in different tabs or browsers
ZBX-15779	Fixed loss of host name in tooltip on trigger overview page
ZBX-15898	Fixed compilation warning regarding too large integer constant
ZBX-15507	Fixed item/trigger/graph copy form provides read-only host groups in target list; replaced form elements with multiselect
ZBX-15338	Fixed last problem name being displayed on map instead of most critical
ZBX-15929	Fixed escalation operation not being send multiple times
ZBX-15721	Fixed escaping of control characters in json encoder
ZBX-15746	Fixed link to pie graph after selecting a time interval on classic graph
ZBX-15784	Fixed multiselect does not support case sensitive auto-complete
ZBX-10799	Changed placeholder for http proxy input fields
ZBX-13014	Fixed map on screen is not centered
ZBX-9229	Fixed sending first value of the log as separate message
ZBX-15479	Fixed cookie presentation in http header
ZBX-15516	Fixed trapper process title to not update time in case of interruption
ZBX-15588	Fixed function names that are written to the log file when using log_level_debug
ZBX-9150	Fixed update intervals of items in vmware templates
ZBX-15481	Fixed showing wrench icon for hosts that are in maintenance, but maintenance is inaccessible due to insufficient permissions
ZBX-15629	Fixed trigger wizard form re-submit
ZBX-15850	Fixed problems by severity filter ignoring host group filter
ZBX-15853	Fixed empty parent group not listed in the latest data filter
ZBX-15553	Moved preprocessing steps into separate tab in items and item prototype massupdate form
ZBX-11025	Added "unknown command error" to mysql recoverable error list
ZBX-15870	Fixed redundant jsloader loading in login page
ZBX-15858	Fixed item filtering by application name; added 'select' button for dashboard widget and screen item application fields
ZBX-15851	Fixed lld item displaying in queue details view
ZBX-15639	Fixed labels overlapping on classic graph x axis
ZBX-15592	Fixed database monitoring 'dns' item key expressing it as mandatory
ZBX-15859	Fixed map.create could attach elements only for first map in request when multiple maps are created with one request
ZBX-15769	Fixed new widget placeholder being shown outside maximum allowed dashboard height area
ZBX-15708	Fixed browser build in autofill for passwords field on media type form on authentication ldap form and on user edit form
ZBX-10392	Fixed application filter persistence when navigating from maps page to triggers views page or latest data page
ZBX-15754	Removed unnecessary request for non-existing map background and fixed undefined index when creating default image
ZBX-15715	Added missing keys "zabbix.stats[<ip>,<port>]", "zabbix.stats[<ip>,<port>,queue,<from>,<to>]" and "zabbix[stats,<ip>,<port>,queue,<from>,<to>]" in item key helper
ZBX-15672	Fixed positioning of the overlay dialogue window in map constructor
ZBX-15609	Added missing optional parameter "<regex_excl_dir>" for "vfs.dir.count" and "vfs.dir.size" item keys in item helper
ZBX-15404	Fixed action condition type and operator integrity
ZBX-15913	Fixed possible crash when sending custom alerts
ZBX-15872	Fixed possible deadlock on host table when processing auto registration contents from zabbix proxy
ZBX-11203	Added blocking of sigint and sigterm signals on each step of automatic upgrade to avoid interruption of statements that cannot be rolled back
ZBX-8451	Fixed global regular expression testing not matching actual behavior of zabbix components due to missing multiline flag
ZBX-13347	Fixed possible crash in history syncer process when processing discovered item value
ZBX-15831	Fixed slow request of vmware configuration update
ZBX-15920	Fixed nodata() function triggering after maintenances with no data collection without waiting for the nodata period
ZBX-13478	Fixed item prototype update intervals to eliminate trigger status flapping
ZBX-10611	Fixed changing process user owner on startup in foreground when allowroot disabled
ZBX-15826	Optimized unsupported macros parsing
ZBX-15742	Fixed network discovery is not reacting to the changes in agent configuration if uniqueness criteria is value
ZBX-15634	Fixed database monitor item does not use stored credentials; thanks to jose deniz for the patch

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Installation and Upgrade Notes

Installation

See Zabbix Manual for full details.

Upgrade

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 Enterprise Support
• Zabbix Training
• Zabbix Development Services

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References

Zabbix 4.2 Manual