The Segmen Editor/Selector doesn't work in IE8.
In fact, it throws an error and causes JS to crash, so Piwik is not usable anymore when the Segment Editor is enabled.
This ticket contains fixes and is a place for discussion whether we want to support IE8 at all.
In 84fb1bf34ae5f2fb8b1bc28f6219aeb5788518aa (which i committed by accident with the wrong message), the main problems are fixed. JS does not crash anymore and Piwik can be used.
In c27a972a156534b05c43df657a96a59afce2a699: refs #4012 fixing two more for-in loops for ie8
The Segment Selector works now.
Editing Segments seems like it would be a lot of work to adapt to IE8.
Very nice that at least the selector works!
Moving 1.x closed tickets to 2.0