Release Notes for Zabbix 5.0.21rc1

22 February 2022

Zabbix Team is pleased to announce the availability of Zabbix 5.0.21rc1.

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 5.0.21rc1. Download it from 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-7408

Added native support for the net.dns and net.dns.record keys in Zabbix agent 2, fixed Zabbix agent 1 SOA response formatting Agent

---

Bug Fixes

ZBX-20530	Fixed compilation error on FreeBSD Server
ZBX-20570	Fixed --with-libevent option on FreeBSD Installation
ZBX-20562	Fixed item names in rabbitmq and elasticsearch templates Templates
ZBX-20443	Fixed requirement of admin rights for creating issues with custom fields and added option to close tasks in Redmine webhook Templates
ZBX-20537	Fixed uptime oid for pfsense template Templates
ZBX-12852	Fixed redundant query of vmware hv sensors info Proxy Server
ZBX-20005	Fixed main checkbox not being selected when all other checkboxes are selected Frontend
ZBX-19178	Fixed trigger wizard user interface breaking because of long expressions Frontend
ZBX-20564	Changed health state sensor item to lld in vmware hypervisor template Templates
ZBX-20373	Fixed conf syncer appearing to be busy on proxy on network problem Proxy
ZBX-19956	Fixed missing proxy address after cloning proxy; fixed proxy address trimming on save Frontend
ZBX-20472	Fixed database lock crash in Zabbix Agent 2 using SQLite Agent
ZBX-20502	Fixed host prototype discovery override in case LLD JSON contains duplicate hosts Server
ZBX-20059	Fixed duplicate metric values being inserted when there is network issue between Zabbix server and Zabbix proxy Server
ZBX-20228	Improved error reporting when SSL_write() or SSL_read() functions fail, removed redundant code that resulted in timeout on windows Agent Proxy Server
ZBX-20339	Fixed incorrect smart plugin device type in Zabbix agent 2 Agent
ZBX-16896	Added interface speed metric to linux by agent templates Templates
ZBX-20030	Fixed system.cpu.num runtime cpu change in Zabbix agent 2 Agent
ZBX-20396	Fixed expression for "Calculated value of innodb_log_file_size" item in MySQL templates Templates
ZBX-20509	Changed host group in Squid, Morningstar templates Templates
ZBX-19789	Added SourceIP support to ldap simple checks Server
ZBX-20680	Fixed reflected XSS issues Frontend

---

Installation and Upgrade Notes

Installation

See Zabbixマニュアル for full details.

アップグレードサービス

See Upgrade procedure for upgrade options and instructions. For version specific upgrade notes, see Upgrade notes for 5.0.21.

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 営業への問い合わせ for pricing and more details.

• Zabbix Enterprise Support
• Zabbix トレーニング
• Zabbix Development Services

---

References

Zabbix 5.0 Manual