That's me doing it.
We're finally bringing several of our new site pieces online, and restarting the webserver is required. Sometimes the cache just won't release, so I restart it then as well.
The site's not broke.
It's going to continue for several more days until we're done. All of the work is being done at night and in the morning (midnight to noon hours), so a lot of you may not notice.
Good stuff is coming...