Something new in the Toolbar XML?

I've not seen <XP> tags before...

[olias]

I just noticed that the frontpage on my main site was showing up as PR4 rather than it's normal PR5 on the Toolbar, after a few refreshes I had it jumping between the two - this is fine as we have all been accepting the 'Toolbar glitches' as fairly normal.

However as a matter of interest I downloaded the raw XML and discovered the following, most of the time it was showing up like this as usual...

<T>Page Title</T>
<RK>5</RK>
<S>Snippet</S>

But when I managed to get the <RK>4</RK> I also had a new set of tags below showing <XP>1</XP>, I've never seen the <XP> tags before and couldn't find reference to them elsewhere - anyone have any ideas?

[Markus]

Good find. I've checked some pages of the ODP, and yes, it seems only to be for <RK>4</RK>. But besides <XP>6</XP>, which I found on two pages I've checked, both XML files have two other tags in them:

<GN>gwd/Top/World/Italiano/Regionale/Europa/Italia/Emilia_Romagna/Provincia_di_Rimini/Localit%C3%A0/Morciano_di_Romagna</GN>
<FVN>Top/World/Italiano/Regionale/Europa/Italia/Emilia_Romagna/Provincia_di_Rimini/Località/Morciano_di_Romagna</FVN>

That category has absolutely no relation to the categories I've checked (they were in Computers/Internet/Web Design and Development/). Neither have I visited those categories myself.