Last modified: 2010-05-15 15:33:34 UTC
In MW 1.3ish, a feature was added where entering five tildes ('~~~~~') into an edit text field generated a timestamp. Now it generates a signature and timestamp followed by a tilde (that is, it behaves like '~~~~' followed by '~'). Six tildes ('~~~~~~') generates the timestamp.
Apparently a typo, an unrelated change changed it from 5 to 6. Have put it back.