We're pushing a sizable update to the Test Server between 5:30-6:00pm PST with a fair number of changes. I don't yet have the complete list of changes, but a quick list is:
EDIT: There was a configuration error, we're correcting it - the servers will be back later tonight The servers are back up now. Enjoy!
EDIT:
This is another publish in our Quality of Life updates, and we are looking to push these changes to the LIVE servers next week after testing.
Client Version 0.74.1.55307, Steam Build ID 699478
Source