If an author uses "v" in the version of their distribution, for some releases, then when you go to Delete Files, the files aren't listed in the right order.
Here's an example. The author started off using vanilla release numbers, then used "v" notation for a while (boo), and then dropped the "v" (yay):

The 0.2 and 0.3 files should appear at the end of the list, but they're in the middle.
If an author uses "v" in the version of their distribution, for some releases, then when you go to Delete Files, the files aren't listed in the right order.
Here's an example. The author started off using vanilla release numbers, then used "v" notation for a while (boo), and then dropped the "v" (yay):
The 0.2 and 0.3 files should appear at the end of the list, but they're in the middle.