on Saturday we will perform some server maintenance. Due to personal constraints, I cannot give an exact time.
As we are performing changes to the replay server, all replays on the running games will break. The games itself will keep running, as the lobby server will not be touched.
Also, due to a change on our reverse proxy, all our webservices will be unavailable for less than a minute (that also affects the login to FAF).
Even though we tried to get the changes tested as much as possible we still expect stuff to break, so if you notice some issue please post in the forums afterward.