How can automatic update checking be disabled for Splunkbase apps?

As of 4.2, SplunkWeb's application management allows the properties of an app to be edit to disable the Splunkbase automatic update checking.

The options available are to set this globally or individually per app.

Globally:

Modify in your local copy of $SPLUNK_HOME/etc/system/local/server.conf with:

[applicationsManagement]
allowInternetAccess = false

Per App:

1) Navigate in SplunkWeb > Manager > Apps > select the Splunkbase apps's "Edit Properties" link and change for "Update checking" from Yes to No

OR

2) In the desired app's $SPLUNK_HOME/etc/apps/<appname> local/app.conf (if this does not exist, create one) and include:

[package]
check_for_updates = 0

for example using the Deployment Monitor app, $SPLUNK_HOME/etc/apps/SplunkDeploymentMonitor/local/app.conf add the stanza entry

[package]
check_for_updates = 0

Note: Manual changes to the configuration files will require a Splunk restart.

Additional references for these attribute details can be found in:
$SPLUNK_HOME/etc/system/README/server.conf.spec
$SPLUNK_HOME/etc/system/README/app.conf.spec

Separately if you are interested in disabling the login message that a new Splunk version is available go here: http://splunk-base.splunk.com/answers/2116/how-can-i-disable-the-login-notification-message-that-a-new-splunk-version-is-available