I use DebugView to read Debug statements. Qt Creator's Application Output is now stealing most (not all) of the output generated by my application. DebugView will get some of the statements.
This wasn't the case with the prior version of Qt Creator. It used to be, if I had DebugView open, only DebugView will get the statements. If DebugView was not open, all the statements would go into Application Output.
I hope that was clear.