BrowserShots.org Removes Opera?

Today I was taking some screenshots using BrowserShots.org (read more about it here) and noticed that they have added some extra browsers BUT removed Opera 9.21.

Current list looks like this:

Firebird 0.6
Firebird 0.7
Firefox 1.0
Firefox 1.5
Firefox 2.0
Firefox 3.0
Flock 0.7
Iceweasel 2.0
Konqueror 3.5
Mozilla 1.0
Mozilla 1.1
Mozilla 1.2
Mozilla 1.3
Mozilla 1.4
Mozilla 1.5
Mozilla 1.6
Mozilla 1.7
Navigator 4.8
Phoenix 0.1
Phoenix 0.2
Phoenix 0.3
Phoenix 0.4
Phoenix 0.5
SeaMonkey 1.0
SeaMonkey 1.1
Firefox 1.5
Firefox 2.0
MSIE 5.0
MSIE 5.5
MSIE 6.0
MSIE 7.0
Firefox 2.0
Safari 2.0

I wonder if they are just upgrading script or removed for some unknown reasons.