Release Notes for Zabbix 4.0.0alpha3

5 February 2018

Zabbix Team is pleased to announce the availability of Zabbix 4.0.0alpha3.

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 4.0.0alpha3. Download here.

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-4357	Added support of "selectTriggerDiscovery" option in trigger.get method API
ZBXNEXT-4152	Replaced double box select fields with multiselect fields and added filtering by proxy and server only in host list API Frontend
ZBXNEXT-4273	Added default event status colors in themes with option to customize them Frontend Installation
ZBXNEXT-4216	Added 'copytruncate' log file rotation support for logrt[], logrt.count[] Agent
ZBXNEXT-4144	Added asterisk mark and aria-label property to all forms required fields Frontend
ZBXNEXT-768	Added item unit blacklisting with character "!" in order to disable metric prefixes Frontend Server
ZBXNEXT-4295	Added selection of the create images tickbox by default on "Maps import" page Frontend
ZBXNEXT-1456	Added filter by item discovery status for item configuration view; thanks to Volker Fröhlich for the original patch Frontend
ZBXNEXT-3991	Added additional params to net.if.* key output for linux base agent Agent
ZBXNEXT-3480	Added support of inventory macros in event tags Server
ZBXNEXT-4175	Implemented ability to send email to several email addresses specified as user media API Frontend Installation Server
ZBXNEXT-4139	Added high contrast light and high contrast dark themes Frontend Installation
ZBXNEXT-4247	Removed deprecated API methods: user.updareProfile, user.addMedia, user.updateMedia, user.deleteMedia, usergroup.massAdd, usergroup.massUpdate and usermedia.get API
ZBXNEXT-970	Added more detailed error information to notification message when DB is unavailable Server
ZBXNEXT-4137	Removed green background from cells Frontend
ZBXNEXT-4157	Added map status summary to be readable by screen reader software Frontend
ZBXNEXT-4127	Implemented popup displaying in overlay dialogues Frontend
ZBXNEXT-1520	Increased the maximum Hosts/DNS name character length from 63 to 255 Agent Installation Proxy Server
ZBXNEXT-4108	Implemented search of problems by trigger name Frontend Server
ZBXNEXT-4143	Implemented keybord interaction in top navigation Frontend
ZBXNEXT-1567	Added item "vfs.dir.count" for counting directory entries Agent
ZBXNEXT-4135	Added tooltips for vertical labels Frontend
ZBXNEXT-4146	Added icons for error and success messages Frontend
ZBXNEXT-4156	Added option to view graphs items data and multiple items graph data as table Frontend
ZBXNEXT-4160	Reworked monitoring Discovery screen to show hint info right in the table cell Frontend
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 Installation
ZBXNEXT-4186	Added ability to adjust colors for new graph items in graph creation form according selected theme Frontend Installation
ZBXNEXT-4145	Fixed appearance of host column based on number of hosts specified in filter Frontend
ZBXNEXT-4118	Implemented advanced options for tag-based search of problems API Frontend Installation
ZBXNEXT-4134	Added 'lang' attribute to page body Frontend
ZBXNEXT-4181	Fixed Zabbix server to accept active Zabbix proxy requests only from allowed address if specified API Frontend Proxy Server
ZBXNEXT-4181	Fixed passive Zabbix proxy to accept Zabbix server requests only from allowed address Proxy
ZBX-10576	Restructured unixODBC related code, moved it to a dedicated directory Installation Proxy Server
ZBX-3783	Added strict validation for proxy.delete() method; proxy cannot be deleted when used in actions API
ZBX-11909	Replaced company.com with example.com in data.sql Installation

---

Bug Fixes

ZBX-13403	Allowed proxy to execute remote commands on agents using encrypted connection Proxy
ZBX-13441	Fixed crashes in case of failures (e.g. timeouts) during VMware hypervisor discovery Proxy Server
ZBX-12607	Fixed performance of map.get API method and map-related views API Frontend
ZBX-11391	Generated an error if expanding LLD macros results in an empty tag name Server
ZBX-13300	Fixed addJsFile() name Frontend
ZBX-13030	Removed proxy's ability to export unprocessed history data via loadable modules Proxy
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 Frontend Agent Proxy Server
ZBX-13194	Fixed incorrect processing of zabbix[wcache,value,*] internal check Server
ZBX-13060	Added limitation for meaningless server reconnection attempts to incorrectly configured passive proxy Proxy Server
ZBX-13233	Added new memory metrics for Linux platform - "active", "anon", "inactive" and "slabs"; thanks to Tomasz Kłoczko for the original patch Agent
ZBX-12643	Improved error log message in case Zabbix server database cannot be used due to empty "users" table Server
ZBX-11720	Fixed memory leak which breaks vfs.fs.size, vfs.fs.inode and vfs.dir.size items if compiled with LeakSanitizer Agent
ZBX-13131	Fixed truncated multiline text values from network discovery SNMP checks Server
ZBX-13117	Fixed vfs.dir.size with symbol links on Windows Agent
ZBX-12045	Fixed inconsistencies in configure -h output Installation
ZBX-13325	Fixed trend.get() method with Oracle backend API
ZBX-13223	Fixed graphs duplication in graph preview Frontend
ZBX-13345	Removed SID from URL in screen edit mode Frontend
ZBX-13055	Fixed problems with DNS resolver interface on NetBSD Agent
ZBX-13214	Added support of \0 matching group for regsub and iregsub methods Frontend
ZBX-13208	Eliminated race condition that caused history collection for newly created items to start before preprocecessing steps finished syncing Server
ZBX-13246	Fixed processing of command line arguments which are longer than 2KB for proc.num and proc.mem items on AIX Agent
ZBX-13130	Fixed Zabbix proxy not to generate high network traffic when server does not accept data Proxy
ZBX-13288	Fixed image ghosting for mass update of map elements Frontend
ZBX-11422	Fixed compilation warnings under OS X 64bit Agent
ZBX-13276	Fixed compatibility issue with Elasticsearch versions starting from 6.0 Frontend
ZBX-13196	Fixed setting of transaction error flag in commit operation Proxy Server
ZBX-13221	Fixed trimming of values in overlay dialogues Frontend
ZBX-13221	Added "Timeout" validation in web scenario step overlay dialogue Frontend
ZBX-12389	Fixed latest data host group filter Frontend
ZBX-13119	Removed 'empty' button in trigger selection window for map constructor item modal form Frontend
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 Server
ZBX-13254	Fixed 'skip' parameter behaviour for log[], log.count[], logrt[], logrt.count[] items in case log files initially do not exist Agent
ZBX-13253	Fixed losing the 1st record by log[] and logrt[] items if 'skip' parameter is used and log file initially is empty Agent
ZBX-13275	Fixed slow housekeeping of events on MySQL Server
ZBX-13264	Fixed Zabbix agent compilation on OS/X Agent
ZBX-13245	Fixed IP fragmentation handling in Zabbix server response to Zabbix proxy Proxy Server
ZBX-13258	Fixed misaligned user group permission controls Frontend
ZBX-13031	Fixed Java gateway compilation without libpcre Installation
ZBX-12963	Fixed passing argument to external check item that contain literal $ Proxy Server
ZBX-12991	Removed default values for "active_since" and "active_till" fields in maintenance.create API method API
ZBX-13270	Fixed default selection of the required host permissions radio in the global scripts form Frontend
ZBX-12758	Fixed slow housekeeping of events due to missing index on foreign key Proxy Server
ZBX-11305	Fixed color and label for event status on event details page Frontend
ZBX-13238	Fixed spelling of Elasticsearch Frontend Server
ZBX-13056	Fixed incorrect positioning of context menu when it is opened using keyboard Frontend
ZBX-13241	Fixed memory leak on Zabbix server when executing remote commands through proxy Server
ZBXNEXT-4139	Fixed displaying of the eventlog severitites and severities in trigger map element Frontend
ZBX-13178	Fixed ipc_path value in error message Proxy Server
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 Proxy Server
ZBX-12251	Fixed possibility that new history values are lost and not processed by Zabbix server or Zabbix proxy due to recoverable transaction error Proxy Server
ZBX-12996	Fixed radio button and label inconsistency in maintenance period configuration Frontend
ZBX-12895	Improved performance of DB patch for updating data in the alerts table Installation
ZBX-12082	Fixed possibility to select triggers with same name in multiselect Frontend
ZBX-12983	Fixed compilation warnings under Windows Agent Proxy Server
ZBX-10578	Fixed redundant init_result() calls; thanks to MATSUDA Daiki for the patch Server
ZBX-12793	Fixed system compiler checks during source configuration Installation
ZBX-11970	Fixed style for some enumerators and structure type declarations Agent

---

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 4.0.0.

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

---

References

Zabbix 4.0 Manual