Zabbix 1.8.6 has been released on August 4th. Within this relase several new features have been added and even more improvements are implemented:
On-demand reload of configuration cache
Added ability to force configuration cache reload of a running server and proxy, which, in the case of active proxy, will also force config re-read from the server.
Strict parsing of configuration files
Zabbix will complain if there are unsupported attributes in server, proxy or agent configuration files.
Compatibility with PostgreSQL 9.x
It is safe to use Zabbix with the latest releases of PostgreSQL.
Monitoring of LVM devices
Added performance monitoring of LVM devices.
Download the new release here: http://www.zabbix.com/download.php