In light of Tower Defense Fest starting today, we have decided to delay the upcoming patch until next week. While we'd like to get the bug fixes and improved balance out ASAP, it requires a reset of the leaderboards. With new players expected to try the game, it would be a bad experience for them if the leaderboards are empty. New players get a chance to learn by watching replays.
That said, I have pushed 1.9.4.1 to the alpha branch for anyone who wants to try it early. Replays won't submit but everything else will be fully working. As a reminder, no beta code is required and access is open to all.