I just uploaded a file to a WordPress 2.7.1 site, and the admin panel tells me that the file was uploaded on 2009/03/23 at 19:52:35. That's fine, but the file's URL is:
2008/05? What? It's the only file in that directory, so it didn't somehow confuse it with another file. The file was sent to me in an email attachment to upload, so the file date is today, from when I saved the attachment. Where did this 2008/05 date come from?