Release Notes for Zabbix 5.2.7rc1

21 June 2021

Zabbix Team is pleased to announce the availability of Zabbix 5.2.7rc1.

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 5.2.7rc1. 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-6517	Added {#VM.FOLDER} macro with chain of vm parent folders to the vmware vm discovery Proxy Server
ZBXNEXT-6662	Increased field size to 2000 characters in web scenario variables and web scenario step variables and post fields Frontend
ZBXNEXT-4910	Added severity in problem real-time export protocol Server
ZBXNEXT-6589	Added Job discovery, backup process items in Database discovery, macros, and value map Templates
ZBXNEXT-6497	Added read/write locking to value cache Server
ZBXNEXT-6504	Added Templates "TiDB by HTTP", "TiDB TiKV by HTTP" and "TiDB PD by HTTP" Templates
ZBXNEXT-6508	Added template for APC UPS Symmetra RX Templates
ZBXNEXT-6571	Added templates for APC UPSs Galaxy 3500, Smart-UPS, Smart-UPS SRT, Symmetra RM Templates

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Bug Fixes

ZBX-19424	Fixed trigger handling failing if host name looks like a number API
ZBX-19139	Fixed memory errors in cmdline parsing on freebsd Agent
ZBX-18891	Fixed "Cancel" button disappearing on last setup step Frontend
ZBX-19358	Fixed memory leak in case of duplicate vmware hv uuid Proxy Server
ZBX-19114	Fixed slow detection of vmware hv multipath values for medium and huge vc instances Proxy Server
ZBX-19248	Fixed retrieving of all data from separate database tables inside of API methods when empty value for filter is passed API
ZBX-19320	Fixed SAML advanced configuration ignores "baseurl" option; added custom option "use_proxy_headers" Frontend
ZBX-19300	Updated jquery version Frontend
ZBX-19340	Optimized history cache to reduce storage of metadata-only records Server
ZBX-18524	Improved preprocessing diagnostic information to include oldest values in queue and totals to include done, queued, processing and pending Proxy Server
ZBX-19291	Fixed memory error when linking host prototypes Server
ZBX-19359	Fixed error in logsource function due to empty source Proxy Server
ZBX-19313	Improved performance by removing redundant lastclock update in configuration cache Proxy Server
ZBX-19208	Fixed imprecise ns on windows Agent
ZBX-19065	Fixed Zabbix agent 2 logging if the file is moved or removed Agent
ZBX-19334	Removed redundant ListenIP parameter in server's configuration file Installation
ZBX-19307	Improved performance of history syncers by reducing time spent in locks when syncing history and receiving new history from proxy Server
ZBX-19038	Fixed lld manager not to process lld rules on same host in parallel to avoid duplicated item keys being discovered; fixed crash when duplicated item key on same host exists Proxy Server
ZBX-19324	Fixed possible deadlocks between configuration and history syncers on proxy Proxy
ZBX-19209	Fixed panic in proc plugin for Zabbix agent 2 Agent
ZBX-19241	Stopped proxy from overwriting local lastlogsize and mtime Proxy
ZBX-19321	Fixed missing event tags in case of multiple problems Server
ZBX-19063	Fixed logging for unsupported windows service command in Zabbix agent 2 Agent
ZBX-19099	Fixed Zabbix agent 2 windows services plugin second parameter Agent
ZBX-18883	Fixed logrt[] monitoring with copytruncate rotation Agent
ZBX-19274	Fixed semaphore not being cleaned up on Solaris when terminating Zabbix sender Agent Proxy Server
ZBX-19233	Fixed potential loss of original error when reading vmware events Proxy Server
ZBX-18701	Fixed syntax mistakes in Template DB MySQL, renamed LLD rule to Database discovery Templates
ZBX-19159	Added postponing of recovery operation when problem operation still executes, fixed memory leak while saving tags returned by webhook Server
ZBX-19102	Fixed conversion of EVENT.NAME to EVENT.RECOVERY.NAME in recovery opmessage Installation
ZBX-19253	Removed ICMP checks, moved items to another application, changed update interval, added "Discard with heartbeat" preprocessing in APC UPS templates Templates
ZBX-19088	Fixed overload memory with unused vmware events Proxy Server
ZBX-18673	Fixed JS in Slack media and updated documentation Templates
ZBX-18372	Fixed additional word before parameters in fatal error message text Frontend
ZBX-19210	Fixed css file versioning for custom themes Frontend
ZBX-18912	Fixed escalation message is using template message instead of custom message in actions Server
ZBX-18667	Fixed code spelling in templates Templates
ZBX-17454	Changed the unit of data item "pgsql.ping.time" in PostgreSQL template Templates
ZBX-19195	Fixed endless loop in graph widget processing if widget size is too small Frontend
ZBX-18809	Changed formula for latency in Elasticsearch template Templates

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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 5.2.7.

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 5.2 Manual