Is there a log of changes that have been made to a splunk instance?

[AlexWebber]

A couple people have been given admin access to our splunk instance. Now I am getting messages that a change has been made that requires a restart and no one seems to know what has happened. Is there a log of changes made or another way to determine the changes that have been made that now require this restart?

[somesoni2]

Give this a try.

index=_internal sourcetype=splunkd "*required a restart*"