I prefer the original behaviour where tests are performed in the order in the file.
I am well aware that Tests should be performable in any order but I also use unit tests for optimization and in that scenario it is better to be able to specify the order.
I thought I could use "Append to Session" for some scenarios but it really means "Add to session" since it doesn't go at the end!!
Please, please add an option to specify whether the list should be sorted or not.