Release Notes for Zabbix 4.0.0alpha6

Zabbix Team is pleased to announce the availability of Zabbix 4.0.0alpha6.

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 4.0.0alpha6. Download it from downloads.

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

New Features and Improvements

ZBXNEXT-4415 Added new mode "compact view" to the problems page with ability to toggle highlighting whole row; added option to toggle timeline
ZBXNEXT-2788 Added support for "not" keyword in custom expression fields
ZBXNEXT-4516 Renamed dashboard widget and screen element "system status" to "problems by severity"
ZBXNEXT-4516 Renamed dashboard widget and screen element "host status" to "problem hosts"
ZBXNEXT-4516 Renamed dashboard widget, screen element and report "status of zabbix" to "system information"
ZBX-13376 Moved functionality to enable jmx interface in java gateway to settings.sh and ensured setting tcp timeout
ZBXNEXT-4458 Improved logging of java gateway, added username/password validation for jmx items
ZBXNEXT-4411 Added compression of server-proxy data exchange
ZBXNEXT-4488 Added ability to push data via trapper to http agent item type
ZBXNEXT-4358 Added http agent item type for data gathering via http
ZBXNEXT-4413 Dropped monitoring->triggers view
ZBXNEXT-4413 Added the trigger context menu option to view or edit the trigger description
ZBXNEXT-4413 Added displaying of the trigger dependencies in monitoring->problems view
ZBXNEXT-4151 Added aria roles to provide easier access by keyboard navigation
ZBX-3783 Added strict validation for apiinfo.version(), action.delete(), correlation.delete() and drule.delete() methods
ZBX-3783 Prohibited deleting discovery rules which are used in actions
ZBX-3783 Added audit for action.delete() and correlation.delete() methods
ZBXNEXT-4143 Implemented submenu autofocus on top-level menu click
ZBXNEXT-4414 Added support for configurable number of displayed tags
ZBXNEXT-4313 Implemented keyboard interaction in context menus
ZBXNEXT-4426 Added option to execute cached passive checks at the current time
ZBXNEXT-4417 Added real time export of events, history and trends in newline delimited json format
ZBXNEXT-4374 Implemented the widget configuration fields clearing when changing the type
ZBXNEXT-4119 Implemented tag based permissions
ZBXNEXT-4045 Implemented maximum size for graphs in widgets
ZBXNEXT-4340 Added kiosk mode for dashboard
ZBXNEXT-4150 Implemented access to interactive elements using keyboard
ZBXNEXT-4149 Implemented keybord interaction in overlay popups
ZBXNEXT-4357 Added support of "selecttriggerdiscovery" option in trigger.get method
ZBXNEXT-4152 Replaced double box select fields with multiselect fields and added filtering by proxy and server only in host list
ZBXNEXT-4273 Added default event status colors in themes with option to customize them
ZBXNEXT-4216 Added 'copytruncate' log file rotation support for logrt[], logrt.count[]
ZBXNEXT-4144 Added asterisk mark and aria-label property to all forms required fields
ZBXNEXT-768 Added item unit blacklisting with character "!" in order to disable metric prefixes
ZBXNEXT-4295 Added selection of the create images tickbox by default on "maps import" page
ZBXNEXT-1456 Added filter by item discovery status for item configuration view; thanks to volker fröhlich for the original patch
ZBXNEXT-3991 Added additional params to net.if.* key output for linux base agent
ZBXNEXT-3480 Added support of inventory macros in event tags
ZBXNEXT-4175 Implemented ability to send email to several email addresses specified as user media
ZBXNEXT-4139 Added high contrast light and high contrast dark themes
ZBXNEXT-4247 Removed deprecated api methods: user.updareprofile, user.addmedia, user.updatemedia, user.deletemedia, usergroup.massadd, usergroup.massupdate and usermedia.get
ZBXNEXT-970 Added more detailed error information to notification message when db is unavailable
ZBXNEXT-4137 Removed green background from cells
ZBXNEXT-4157 Added map status summary to be readable by screen reader software
ZBXNEXT-4127 Implemented popup displaying in overlay dialogues
ZBXNEXT-1520 Increased the maximum hosts/dns name character length from 63 to 255
ZBXNEXT-4108 Implemented search of problems by trigger name
ZBXNEXT-4143 Implemented keybord interaction in top navigation
ZBXNEXT-1567 Added item "vfs.dir.count" for counting directory entries
ZBXNEXT-4135 Added tooltips for vertical labels
ZBXNEXT-4146 Added icons for error and success messages
ZBXNEXT-4156 Added option to view graphs items data and multiple items graph data as table
ZBXNEXT-4160 Reworked monitoring discovery screen to show hint info right in the table cell
ZBXNEXT-761 Added rules to make dbschema.c, schema.sql and data.sql from schema.tmpl, data.tmpl and templates.tmpl if there is a need to
ZBXNEXT-4186 Added ability to adjust colors for new graph items in graph creation form according selected theme
ZBXNEXT-4145 Fixed appearance of host column based on number of hosts specified in filter
ZBXNEXT-4118 Implemented advanced options for tag-based search of problems
ZBXNEXT-4134 Added 'lang' attribute to page body
ZBXNEXT-4181 Fixed zabbix server to accept active zabbix proxy requests only from allowed address if specified
ZBXNEXT-4181 Fixed passive zabbix proxy to accept zabbix server requests only from allowed address
ZBX-10576 Restructured unixodbc related code, moved it to a dedicated directory
ZBX-3783 Added strict validation for proxy.delete() method; proxy cannot be deleted when used in actions
ZBX-11909 Replaced company.com with example.com in data.sql

Bug Fixes

ZBX-14337 Fixed persistent xss in map navigation tree widget
ZBX-14336 Fixed persistent xss vulnerability in services
ZBX-13750 Fixed hover and focus style for edit dashboard cancel button, improved top nav css coding style
ZBX-13694 Disable check now for items with scheduler configuration errors
ZBX-9882 Removed zapcat-style and multi-level array type support in item key parameters
ZBX-12821 Fixed multiple javascript memory leaks
ZBX-13755 Fixed proxy lastaccess update on 32-bit zabbix server
ZBX-12425 Fixed selection of web items in the "plain text" screen element
ZBX-13781 Fixed crlf injection in zabbix agentd
ZBX-13737 Fixed invalid confirmation message when mass enabling and disabling trigger, item and host prototypes
ZBX-13766 Fixed comparison of two large float numbers in expressions
ZBX-13481 Fixed incorrect parsing of bits data type in snmp response
ZBX-13744 Fixed potential shared memory leak when item is removed
ZBX-13742 Fixed parsing of the operator "not" in trigger expression
ZBX-13535 Fixed trigger recovery expression for 'high error rate' trigger
ZBX-13278 Fixed trigger expression for 'link down' trigger
ZBX-12805 Increased command line limit for proc.num checks on hp-ux systems
ZBX-13749 Fixed creation of dependent items from item wizard
ZBX-13660 Fixed data types passed to is_ushort() for converting pid, port and process number
ZBX-12935, ZBX-13539 Fixed displaying of floating point values under the "latest data" page
ZBX-13579 Fixed unnecessary data getting when agent becomes available in the non-collection data period
ZBX-13240 Removed duplicating html ids from frontend and fixed sid validation in trigger wizard
ZBX-13685 Fixed maintenance entries displayed in list when filter is applied
ZBX-12756 Improved configure script to check iconv library
ZBX-13667 Added notification in zabbix server log about 'error' in elasticsearch json response
ZBX-13683 Fixed multiselect items not being sorted by name
ZBX-13299 Fixed autoregistration, discovery and internal notifications not being sent due to uninitialized severity
ZBX-13607 Changed ping script to return success also for timeouts
ZBX-12967 Fixed slide show refresh interval multiplier menu not working
ZBX-13696 Added maximum record limit to old session removal in housekeeper
ZBX-13642 Fixed undefined index in user edit form
ZBX-13546 Fixed context menu positioning in maps
ZBX-13668 Fixed dynamic widget searching for item key in item prototypes
ZBX-13500 Fixed fractional values in triggers being misinterpreted without a leading 0
ZBX-13561 Fixed incorrectly displayed pie graph when first item has no data
ZBX-13517 Fixed undefined index in pie charts
ZBX-13499 Fixed checkbox selector in problems table
ZBX-13598 Fixed crash when zabbix process cannot connect to preprocessing service
ZBX-13522 Fixed duplicate ids in trigger expression constructor
ZBX-13489 Fixed wrong tab iteration inside graph widget
ZBX-13625 Fixed blinking in the problem widget
ZBX-13560 Fixed acknowledge notifications being visible in the event popup
ZBX-13298 Fixed missing graph after faulty graph edit form submission
ZBX-13487 Improved widgets menu icons focus state styles
ZBX-13350 Added multiple zabbix element default paths to output after running ./configure and --help option
ZBX-13509 Improved compilation support from source for solaris and netbsd
ZBX-13542 Fixed http steps on template not inheriting hosts application setting
ZBX-13618 Fixed wrong variables order in translatable error message
ZBX-13344 Fixed trigger based actions having a default "not in maintenance" condition
ZBX-13613 Improved a history syncer when backend elasticsearch is not available
ZBX-13510 Fixed error of execution "make dbschema" for netbsd
ZBX-13544 Fixed agent crashes when using regex with 'log' item for mac osx
ZBX-13611 Fixed lld rules not always saving their state/error message changes
ZBX-13571 Fixed regression that resulted in slow history data queries on partitioned tables
ZBX-13490 Fixed autofocus in forms
ZBX-13470 Improved searching ipmi items by full name
ZBX-13566 Fixed create dashboard button size in dashboard list
ZBX-13464 Fixed fullscreen attribute included in host context menu links
ZBX-13424 Added possibility to select web items as master items and improved copying of dependent items to destination hosts and templates
ZBX-13573 Fixed undefined index message changing action "acknowledgment operations" from "remote command" to "notify all involved"
ZBX-13570 Fixed undefined index in api call
ZBX-13331 Removed "recovery" property from action.get api method response
ZBX-13309 Fixed displaying of problem/recovery time
ZBX-13450 Fixed server and proxy compilation problem for solaris 10
ZBX-13458, ZBX-13494 Fixed resolving of the macros in map labels for non-superadmin users
ZBX-13526 Fixed widget placeholder jumping instead of resizing while dashboard edit
ZBX-13362 Fixed potentially wrong rows deleting by housekeeper in postgresql
ZBX-13506 Fixed linked trigger is moved to sibling map element
ZBX-13586 Fixed trigger-based event correlation - suspend creation of event if no problems are recovered by it
ZBX-13339 Improved deallocation of memory
ZBX-13412 Fixed js error and wrong form behaviour when changing item type, type of information
ZBX-13471 Fixed contrast in selected item filters
ZBX-13428 Fixed long name of map outside go back button in map widget
ZBX-13340 Fixed pie graphs displaying incorrect data
ZBX-13257 Fixed display of the latest item in audit log
ZBX-13447 Fixed trigger name readability on map in dark theme
ZBX-11994 Changed "awk" to "sed" for getting info about "last changed revision"
ZBX-13360 Fixed html5 placeholder color that previously appeared like actual input data
ZBX-13351 Improved openssl error messages
ZBX-13147 Fixed inconsistent number on map navigation tree
ZBX-13537 Fixed "inaccessible user" in dashboard system status widgets acknowledgement popup
ZBX-13472 Fixed description of "server" and "serveractive" configuration options
ZBX-13455 Added frontend error message when templates cannot be linked to lld host
ZBX-13538 Fixed example configuration for elasticsearch
ZBX-13434 Fixed incorrect trigger dependencies being set after copying triggers to multiple hosts; thanks to kotaro miyashita for the patch
ZBX-13513 Fixed input maxlength for users media of type script
ZBX-13523 Fixed error message for empty tcp response in case agent dropped connection because of access permissions
ZBX-12883 Fixed incorrect ordering the list of triggers after saving a map
ZBXNEXT-4150 Fixed url display in hint box and focus styles for radio buttons
ZBX-12940 Fixed content does not fit dialog window
ZBX-13342 Fixed order by query in frontend maintenance tab
ZBX-13401 Fixed successful items mass update with invalid update interval
ZBX-6167 Fixed partial updating in maintenance.update
ZBX-13062 Banned using of mutex in threads of metrics collection
ZBX-13236 Fixed error message of function parameters parse
ZBX-10433 Removed inaccurate configuration default values
ZBX-13398 Fixed configure script for debian gnu/linux "buster" and "sid" to work with postgresql
ZBX-12754 Fixed undefined index error in map import
ZBX-13303 Improved display of user media 'use if severity' indicators
ZBX-13166 Fixed daily and yearly notification reports not including current day/last day of leap-year
ZBX-13118 Improved readability of emails in action log by splitting them multiline
ZBX-13498 Added optional mysql upgrade patch for "problem" table to drop redundant index after another index that can be used to enforce the foreign key constraint has been created
ZBX-13430 Fixed use of uninitialized value ttl when elasticsearch is configured
ZBX-13452 Fixed elasticsearch history storage default value types
ZBX-13248 Fixed field trapper_hosts to optional for trapper item.create
ZBX-13307 Fixed map scaling and position to the widget left side
ZBX-12941 Fixed checkbox overlay's position over the checkbox
ZBX-13465 Fixed back button style on the sub-maps
ZBX-13334 Fixed translations of widget parameters window
ZBX-6118 Fixed poor performance of changing an item on the template which linked with many hosts
ZBX-13454 Fixed placeholder in administration->scripts form
ZBX-13403 Allowed proxy to execute remote commands on agents using encrypted connection
ZBX-13441 Fixed crashes in case of failures (e.g. timeouts) during vmware hypervisor discovery
ZBX-12607 Fixed performance of map.get api method and map-related views
ZBX-11391 Generated an error if expanding lld macros results in an empty tag name
ZBX-13300 Fixed addjsfile() name
ZBX-13030 Removed proxy's ability to export unprocessed history data via loadable modules
ZBXNEXT-3581 Dropped plain text protocol support and made header mandatory; fixed ip fragmentation handling by including header in zabbix get request, zabbix server/proxy passive check request and frontend request to zabbix server
ZBX-13194 Fixed incorrect processing of zabbix[wcache,value,*] internal check
ZBX-13060 Added limitation for meaningless server reconnection attempts to incorrectly configured passive proxy
ZBX-13233 Added new memory metrics for linux platform - "active", "anon", "inactive" and "slabs"; thanks to tomasz kłoczko for the original patch
ZBX-12643 Improved error log message in case zabbix server database cannot be used due to empty "users" table
ZBX-11720 Fixed memory leak which breaks vfs.fs.size, vfs.fs.inode and vfs.dir.size items if compiled with leaksanitizer
ZBX-13131 Fixed truncated multiline text values from network discovery snmp checks
ZBX-13117 Fixed vfs.dir.size with symbol links on windows
ZBX-12045 Fixed inconsistencies in configure -h output
ZBX-13325 Fixed trend.get() method with oracle backend
ZBX-13223 Fixed graphs duplication in graph preview
ZBX-13345 Removed sid from url in screen edit mode
ZBX-13055 Fixed problems with dns resolver interface on netbsd
ZBX-13214 Added support of \0 matching group for regsub and iregsub methods
ZBX-13208 Eliminated race condition that caused history collection for newly created items to start before preprocecessing steps finished syncing
ZBX-13246 Fixed processing of command line arguments which are longer than 2kb for proc.num and proc.mem items on aix
ZBX-13130 Fixed zabbix proxy not to generate high network traffic when server does not accept data
ZBX-13288 Fixed image ghosting for mass update of map elements
ZBX-11422 Fixed compilation warnings under os x 64bit
ZBX-13276 Fixed compatibility issue with elasticsearch versions starting from 6.0
ZBX-13196 Fixed setting of transaction error flag in commit operation
ZBX-13221 Fixed trimming of values in overlay dialogues
ZBX-13221 Added "timeout" validation in web scenario step overlay dialogue
ZBX-12389 Fixed latest data host group filter
ZBX-13119 Removed 'empty' button in trigger selection window for map constructor item modal form
ZBX-12661 Fixed low-level discovery of dependent items not working after being edited and resulting in undefined offset error or foreign key constraint violation
ZBX-13254 Fixed 'skip' parameter behaviour for log[], log.count[], logrt[], logrt.count[] items in case log files initially do not exist
ZBX-13253 Fixed losing the 1st record by log[] and logrt[] items if 'skip' parameter is used and log file initially is empty
ZBX-13275 Fixed slow housekeeping of events on mysql
ZBX-13264 Fixed zabbix agent compilation on os/x
ZBX-13245 Fixed ip fragmentation handling in zabbix server response to zabbix proxy
ZBX-13258 Fixed misaligned user group permission controls
ZBX-13031 Fixed java gateway compilation without libpcre
ZBX-12963 Fixed passing argument to external check item that contain literal $
ZBX-12991 Removed default values for "active_since" and "active_till" fields in maintenance.create api method
ZBX-13270 Fixed default selection of the required host permissions radio in the global scripts form
ZBX-12758 Fixed slow housekeeping of events due to missing index on foreign key
ZBX-11305 Fixed color and label for event status on event details page
ZBX-13238 Fixed spelling of elasticsearch
ZBX-13056 Fixed incorrect positioning of context menu when it is opened using keyboard
ZBX-13241 Fixed memory leak on zabbix server when executing remote commands through proxy
ZBXNEXT-4139 Fixed displaying of the eventlog severitites and severities in trigger map element
ZBX-13178 Fixed ipc_path value in error message
ZBX-12251 Fixed possibility of trigger status getting stuck in problem or ok state due to transaction error in history synchronization, added deadlock to a list of recoverable errors
ZBX-12251 Fixed possibility that new history values are lost and not processed by zabbix server or zabbix proxy due to recoverable transaction error
ZBX-12996 Fixed radio button and label inconsistency in maintenance period configuration
ZBX-12895 Improved performance of db patch for updating data in the alerts table
ZBX-12082 Fixed possibility to select triggers with same name in multiselect
ZBX-12983 Fixed compilation warnings under windows
ZBX-10578 Fixed redundant init_result() calls; thanks to matsuda daiki for the patch
ZBX-12793 Fixed system compiler checks during source configuration
ZBX-11970 Fixed style for some enumerators and structure type declarations

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.

References

Zabbix 4.0 Manual

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