The new Twenty Eleven theme [1] doesn't fully support IE6 (there's comments on that bug) but I believe it works OK in it. As WordPress is completely themeable,

The new Twenty Eleven theme [1] doesn't fully support IE6 (there's comments on that bug) but I believe it works OK in it. As WordPress is completely themeable, there will probably be themes that support IE6 for years to come. More interesting (for me at least) is that WordPress 3.2 will require PHP5.2 [2]. WordPress had lots of legacy code for PHP4 that made coding plugins for it a pain. [1] http://core.trac.wordpress.org/ticket/17198 http://core.trac.wordpress.org/ticket/17198 [2] http://wordpress.org/news/2011/05/wordpress-3-2-beta-1/ http://wordpress.org/news/2011/05/wordpress-3-2-beta-1/