Release Notes for Zabbix 4.0.0alpha8

Zabbix Team is pleased to announce the availability of Zabbix 4.0.0alpha8.

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 4.0.0alpha8. 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-4446 added ability to change severity of previously generated problems
ZBXNEXT-4044 changed default values of 'Display OK triggers for' and 'On status change triggers blink for'
ZBXNEXT-4361 implemented new time range selector for graphs
ZBXNEXT-4577 improved performance of Zabbix server by replacing semaphores to pthread mutexes and read-write locks
ZBXNEXT-4312 reworked date picker; implemented keyboard interaction
ZBXNEXT-2365 added additional auto-registration operations and re-running of auto-registration actions if host metadata is modified
ZBXNEXT-4569 added support of MySQL 8.0
ZBXNEXT-4565 removed old upgrade DB patches
ZBXNEXT-4320 added ability to store history data in date based indices of elasticsearch
ZBXNEXT-4526 increased tags column size in Compact view mode
ZBXNEXT-4528 added link to Zabbix official support page
ZBXNEXT-4520 added values to boolean mapping: "ok, master" as 1 and "err, slave" as 0
ZBXNEXT-4185 added support of multiple items in "Plain text" widget
ZBXNEXT-4163 added support LLD, User macros and User macros with context from LLD macro in Items preprocessing
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-14388 fixed log message about full history cache
ZBX-13283 removed info label in Trigger severities and Users administration pages
ZBX-6046 fixed the functions 'net.if.*' for Solaris with empty 64 bits counters
ZBX-13355 fixed media type a required password field successfully passing validation while being empty and prevented auto-filling stored passwords by browser
ZBX-13701 fixed hintbox multiplication on page refresh
ZBX-14398 improved "Server" parameter description in Zabbix agent configuration file
ZBX-14344 fixed host groups, hosts and applications not being taken into account when filtering problems by problem name in Monitoring->Problems view
ZBX-11434 added error messages when creation of LLD SNMP items fails due to SNMP OID field
ZBX-12250 fixed logrt[] item to analyze log file from start if no log files match and no log files were seen before
ZBX-13765 fixed discovered host status update if it was down and a service was discovered on that host
ZBX-12070 fixed "proc.num" and "proc.mem" items calculation of values when zabbix_agentd called in test mode
ZBX-14423 fixed use of initialized variable during application discovery
ZBX-12990 improved "vmware.hv.datastore.size" through usage the performance counters
ZBXNEXT-4540 fixed problems filter with same tags not being joined with OR condition
ZBXNEXT-4576 unified dashboard widget content margins
ZBX-12965 fixed scheduled check calculation during daylight saving changes
ZBX-13712 fixed "Undefined index: master_itemid" and SQL errors in item.update and itemprototype.update methods; fixed updating of discovered items
ZBX-14329 fixed error opening map's submap
ZBX-13549 fixed displaying of not monitored triggers in maps
ZBX-13783 dropped support for Zapcat-style and multi-level parameter arrays from item key validation in frontend
ZBX-12359 fixed "Automatic icon selection" checkbox not working and displaying two icons at once in map constructor
ZBX-12239 fixed global search form allowing to submit empty search queries
ZBX-12177 renamed "Icon" to "Map element" in Network map properties and constructor
ZBX-14333 fixed {ESC.HISTORY} and action log not to display colon without target host when executed on Zabbix server
ZBX-14345 fixed lock wait timeout error handling on MySQL to avoid possible data loss
ZBX-13361 fixed error messages when configuring an existing item to have an update interval
ZBX-14328 improved logging of command execution failures
ZBX-13803 fixed "make install" to respect DESTDIR variable, this is essential for packaging
ZBX-12603 fixed tab navigation and keyboard interaction in dashboard sharing and properties dialogues; added validation inside popups
ZBX-13043 removed error message for when user has defined media but all of them are disabled
ZBX-14312 fixed possible deadlock in history syncer when housekeeper is deleting events
ZBX-13697 fixed session expiration when changing default authentication method
ZBX-13768 fixed disabled 'add' button showing in templated item preprocesing form
ZBX-13680 fixed action not being cloned due to existing operation id being submitted
ZBX-13775 fixed map tree widget border color
ZBX-13780 fixed status color styles
ZBX-12350 fixed severity picker styles
ZBX-13782 fixed decoding of Unicode characters in JSON
ZBX-13767 fixed "undefined index: acknowledges" error on problems page
ZBX-12175 fixed subfilter entries with long names going off the screen
ZBX-12644 fixed filter being partially reset when using pagination in availability report page
ZBX-12390 fixed problem when triggers might not use correct value if an item values within one second were received in wrong historical order
ZBX-13788 fixed host availability stuck in unknown state after proxy changes
ZBX-14313 fixed trigger level correlation when multiple tags are set
ZBX-12372 fixed duplication of prefix "/" for second parameter "path" in items "web.page.*"
ZBX-14315 fixed validation of "max_depth" in "vfs.dir.size" for agent
ZBX-13778 fixed logically dead code in JSON Path parser
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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