Release Notes for Zabbix 6.0.40rc1

14 April 2025

Zabbix Team is pleased to announce the availability of Zabbix 6.0.40rc1.

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 6.0.40rc1. 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-9703

Updated existing Zabbix server/proxy health templates; added Zabbix server/proxy health templates by Zabbix agent passive/active Templates

---

Bug Fixes

ZBX-18703	Fixed incorrect values returned by vmware.vm.vfs.fs.size item Proxy Server
ZBX-24383	Fixed PHP fatal error when importing configuration from Zabbix 2.0 API
ZBX-26038	Added 10-second reconnect timeout for PostgreSQL read-only database Server
ZBX-26080	Fixed old file descriptors being held when external log rotation is used Agent Proxy Server
ZBX-26061	Fixed vertical text rotation for Chinese, Korean, and Japanese languages Frontend
ZBX-26006	Made PSK comparison case-insensitive during autoregistration Proxy Server
ZBX-22900	Fixed Zabbix agent crash on Windows while executing runaway regular expression Agent
ZBX-25436	Updated Zabbix agent 2 server description in configuration file Agent
ZBX-26109	Fixed crash on HTTP checks with empty data Proxy Server
ZBX-25798	Fixed error with converting empty string to UTF-8 Agent
ZBX-25365	Fixed map element deletion during LLD and action operation processing via Zabbix server Server
ZBX-26108	Fixed Zabbix agent build on Windows with PCRE2 installed with vcpkg Installation
ZBX-26029	Added device retrieval loop error exception handling to Meraki template Templates
ZBX-25607	Fixed column width in multiple list pages Frontend
ZBX-23687	Added improvements and fixed bugs related to context menus Frontend

---

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 6.0.40.

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 6.0 Manual