Release Notes for Zabbix 4.0.28

25 January 2021

Zabbix Team is pleased to announce the availability of Zabbix 4.0.28.

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 4.0.28. 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-6364	Removed long lists of cloned objects from host and template full clone forms Frontend
ZBXNEXT-6307	Added ability to read properties from a file Java gateway

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Bug Fixes

ZBX-18942	Fixed missing SID valiadion in authentication update route Frontend
ZBX-18893	Changed frontend config file permissions to 0600 Frontend
ZBX-18884	Fixed crash in web monitoring and web.page.* keys when encoding non ASCII characters in URL Agent Proxy Server
ZBX-18865	Fixed dbConditionInt (db.inc.php) returning wrong result in rare cases API Frontend
ZBX-16216	Fixed semaphore not being cleaned up when stopping Zabbix agent Agent
ZBX-18556	Fixed gaps in time labels of classic graphs related to DST transitions Frontend
ZBX-18644	Replaced deprecated gethostbyname function with getaddrinfo Agent Proxy Server
ZBX-18802	Fixed close problem task to be deleted when problem event is deleted Server
ZBX-17865	Fixed displaying of long problem names on problems and event pages Frontend
ZBX-18796	Improved update performance of the preprocessing rules in item.update() and itemprototype.update() methods API
ZBX-18623	Fixed the global search showing number of objects that user has no permissions Frontend
ZBX-18784	Fixed memory leak when handling vmware events Proxy Server
ZBX-18761	Fixed possible heap overflow issues in IPC commonications when deserializing huge text values Proxy Server
ZBX-18755	Fixed possibility of out of memory error when replacing string in mail, calculated checks, actions and when linking template Proxy Server
ZBX-18486	Fixed screen inheritance from a linked template in the full clone case Frontend
ZBX-18660	Fixed SNMP index returning as a number instead of string if there is a backslash Server
ZBX-17703	Fixed problem negative duration for timed triggers in case of database disconnect Server
ZBX-18694	Fixed crash when PSK connection is configured but PSK or PSK identity is empty Proxy Server
ZBX-18662	Improved pollers, unreachable pollers, Java pollers and pingers to use less memory Proxy Server
ZBX-18423	Fixed inconsistent macro expansion with Oracle DB compared with other databases Server
ZBX-18219	Fixed custom multiplier preprocessing step validation to accept a string with macros API
ZBX-18422	Fixed "server is not running" warning message width Frontend
ZBX-18688	Fixed schema name didnt show when available only postgresql Frontend

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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 4.0.28.

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 4.0 Manual