The server restart interval has been reduced to two hours. This should reduce the number of servers going offline without warning due to a bad Unity2019 coding issue. If you see the restart warning, immediately get to a safe spot away from zombies. They will respawn upon server restart. Note that the restarts, while inconvenient, are much better than the crashes because a server that crashes restarts with the last saved version, which can be up to 15 minutes old. A properly shut down/restarted server saves immediately before the shutdown. There is no reversion of player position or inventory/balance changes.