AFAIK the server has always run at the same rate, and the update was just to how often the server sent new data to clients — it would receive client updates and

AFAIK the server has always run at the same rate, and the update was just to how often the server sent new data to clients — it would receive client updates and run the game very frequently, but only send updates every 47 ms or so. I feel like rather than being some critical issue they were trying to bury, it's more likely they just didn't initially think updating client state for every single frame was necessary, or at least not high-priority.