The latest version of Zabbix can be downloaded from Softpedia
Zabbix, an enterprise-class open source distributed monitoring solution, released under the GPL (free of charge for both commercial and non-commercial use), is now at version 2.1.1.Zabbix 2.1.1 is actually the second Alpha release for the Zabbix 2.2 branch and integrates a large number of new features.
Highlights of Zabbix 2.1.1:
• The system performance has been improved due to the introduction of a value cache for faster trigger processing;
• Support has been added for loadable modules;
• The support for unknown events has been removed and they are no longer generated and supported;
• Internal events have been introduced to allow actions and notifications.
A complete list of changes can be found in the official changelog.
Download Zabbix 2.1.1 right now from Softpedia. Remember that this is a development version and it should NOT be installed on production machines. It is intended for testing purposes only.