Tabs RC5 vs RC6+

Tabs RC5 vs RC6+


Were there any changes to the way Tabs is supposed to work between RC5
and RC6? I have a few sets of Tabs in my application, and one set of
nested tabs, which works fine in rc5, but in rc6 doesn't set up
properly in IE. Things get even worse when I build from the current
trunk in SVN, the content isn't visible at all, and the interaction
doesn't bind at all in either FF or IE, so I'm assuming that's not
ready for prime-time, which is fair.
Can anyone provide some insight into any changes that might have
happened? I rolled a theme on rc5, were there changes to the CSS
framework betweeen releases? I've been wrestling with jQuery/UI
versions all day between this and the 1.3.1 doc ready bug, which is
"fixed" in the nightlies > 6170 but completely breaks my app in IE.
The code in question, fwiw, is this:
$("#winlose_tabs > ul,#winners_tabs > ul,#losers_tabs > ul").tabs
();
    $("#winners_tabs,#losers_tabs")
    .find(".ui-tabs-nav")
    .bind("tabsload",function(e,ui) {
        $("table tbody tr:odd",ui.panel).addClass("odd");
        $("td.wldesc",ui.panel).shortenify({chars:20});
    });
I could, and probably now will, fix up the theme css to see if that
fixes things, but I'm posting this thread because the bottom line is
that with constantly changing versions and release candidates and a
very fluid development schedule forjQuery and jQuery UI., these subtle
API changes (extra wrapper in accordion added in RC5, etc.) are an
absolute nightmare for those of us trying to keep our code in sync.
---adam