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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