So when can we upload runs for the Boss rush category?

Well, true that shadow towers are now easier to complete having them as a single boss category is a bad idea since they can mostly be completed in a matter of seconds. You could do it as a "Shadow Tower%" so you have to complete all the bosses in a row. Then add sub categories with the difficulty

https://discord.gg/fRwDgtZ

The approved emulator is DeSmuME 0.9.11. All other emulators are banned. If using emulator, using save states and speedup for any reason is not allowed. If using emulator, the entire emulator, including the window border, must be captured

So now I need to ask that if this board also goes with the pc version of the game..

There might be a new speedrun site in development for the Dauntless Community. Look forward to that.

Is the board dead or something?

Good idea ;P