How to turn off upgrade message in Umbraco backoffice

Question

Is it possible to turn off the Umbraco upgrade message in the Umbraco backoffice. Don't necessarily want my users to see this.

Answer 1

There is an umbracoVersionCheckPeriod key in appSettings section of the web.config that has the default value of 7. Set this to 0 to prevent "a new version is available" balloon.

<add key="umbracoVersionCheckPeriod" value="0" />

http://our.umbraco.org/wiki/reference/webconfig

EDIT:

For umbraco version 7 this key might not be present in the web.config by default but you can add it manually and the notification will disappear.

http://our.umbraco.org/documentation/Using-Umbraco/Config-files/webconfig7