Today has been released zabbix 3.4.0.
(Seems still there is no official announcement)
Whole upgrade gos witout problems however after upgrade I've hit one issue trying to browse some graphs. Clicking on graph ruler at any part is causing activate magnification function so after few clicks I've end up in 1m scale
Seems clear web browser cache is fixing this issue.
On IRC I've been told that this issue affects other parts of the web interface.
(Seems still there is no official announcement)
Whole upgrade gos witout problems however after upgrade I've hit one issue trying to browse some graphs. Clicking on graph ruler at any part is causing activate magnification function so after few clicks I've end up in 1m scale

Seems clear web browser cache is fixing this issue.
On IRC I've been told that this issue affects other parts of the web interface.