TigerCat: I'm not sure which "new version" you're asking about. IE9? I've been happily using IE8 on a couple of machines here for more than 1 1/2 years, and can't think of any safety concerns specific to that version.
(hide) If you don't want other users to know what you are doing you can change into cloak mode in Settings (paying members only). (pauloaguia) (show all tips)