Release Notes for Zabbix 4.0.19

Zabbix Team is pleased to announce the availability of Zabbix 4.0.19.

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

This document contains the release notes for Zabbix 4.0.19. Download it from download.

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-5649 Added name referencing support ('~' suffix) to jsonpath Proxy Server
ZBXNEXT-3604 Added support of user configurable ciphers for communication between Zabbix components Agent Proxy Server

Bug Fixes

ZBX-17173 Improved windows agent build scripts Installation
ZBX-17425 Fixed template.massupdate API macros update API
ZBX-17344 Fixed PHP 7.4 errors in Latest data->History page for text and log items having an empty filter Frontend
ZBX-17330 Fixed error reading vmware events with keys over 2^31 Proxy Server
ZBX-17288 Fixed undefined indexes in Administration->Regular expressions->Test tab Frontend
ZBX-17350 Fixed displaying of multiple value types in Latest data->History page Frontend
ZBX-16802 Added mtime-reread/mtime-noreread options parameter to log* keys Frontend Agent
ZBX-17390 Fixed validation of the maximum selected period Frontend
ZBX-17185 Fixed non-disappearing messages of failed login attempts Frontend
ZBX-17322 Fixed deadlock between server and frontend when updating multiple hosts Server
ZBX-9057 Fixed duplicate entries being written into in profiles table Frontend Installation
ZBX-17159 Fixed overlay dialogue instantiation Frontend
ZBX-17108 Improved process utilization calculation Proxy Server
ZBX-17269 Fixed undefined indexes in history page Frontend
ZBX-17342 Dump memory statistics and items with most values when value cache is fully used Server
ZBX-16926 Fix INT_MAX error when compiling on SunOS/Joyent/Solaris Proxy Server

Installation and Upgrade Notes


See Zabbixマニュアル for full details.


See Upgrade procedure for upgrade options and instructions. For version specific upgrade notes, see Upgrade notes for 4.0.19.

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 4.0 Manual