Release Notes for Zabbix 4.2.1rc1

16 April 2019

Zabbix Team is pleased to announce the availability of Zabbix 4.2.1rc1.

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 4.2.1rc1. Download here.

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 Frontend

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Bug Fixes

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

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Installation and Upgrade Notes

Installation

See Zabbix documentation for full details.

Upgrade

See Upgrade procedure for upgrade options and instructions. For version specific upgrade notes, see Upgrade notes for 4.2.1.

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