Yes but the problem is that there are times on the leaderboards that can't be beaten simply because they were beaten an update earlier. The 16:42 hidden wave run for example, is literally impossible to beat, as the current fastest possible time is a 16:44. Something needs to be done about that.

Why are times from last update still on the leaderboards, especially the beginner mode times. There was a literal change in wave structure on beginner mode and yet the times from the previous update are still there, shouldn't the times from a previous update get deleted, especially when there is a clear difference in times between updates?

the difficulty for full game is "all maps" so I'd assume it's completing every map