Application output differs depending on used Qt version

1. Open some project.
2. Build it.
3. Start running it.
4. Above the Application Output tab, press the red stop button.
   • If you built the project on Qt 4, Creator will write "The program has unexpectedly finished." to Application Output.
   • If you built the project on Qt 5, only messages about start and exit of the program are in Application Output, no report about unexpectedly finishing.

I think the output should be same in both cases.