Last modified: 2007-06-24 22:34:41 UTC
It is not possible to upload files with less than three characters (excluding the file extension and Image: prefix). It would be quite useful to be able to do this as there are a lot of purposes it could serve. Indeed there are many words which are two (or even one) letter long and sometimes letters and numbers are uploaded, in which case a single letter filename would be appropriate. I would have tagged it with easy, but it might not be ;)
see [[bug:9251]] also.
Seems to be an explicit limit; no rationale given in comments, but I guess it was a measure to cut down on drive-by uploading of files with crappy or useless filenames.
I can understand that reasoning, but for closed-editing wikis it would be useful to at least be able to set this in LocalSettings.php - please reconsider.
This kind of restriction is not appropriate on the software level. Inappropriate images should be renamed, and names that are unwanted a priori in a particular wiki can be protected to avoid uploads to those names. Fixed in r23339.