Updating To WordPress 2.0.5 Problems?

Hmmm… I upgraded to WP 2.0.5 today (yes I know I’m late) and it appears to have marked some old posts as new. Hence they may well appear in the Dashboard.

I haven’t done any­thing to prompt this other than upgrade. I’m not sure what has caused this, but I think one or two other people had sim­ilar prob­lems. Sorry for the confusion.

Update: I just thought of some­thing I did change.
I changed the blog descrip­tion: I changed “not quite so daily thoughts” to be “not-quite-so-daily thoughts”. I won­der whether that is enough to trig­ger the prob­lem with the soft­ware at WordPress Planet?