Hello,
Recently I see http://www.kernel.org/ now shows 3.1 as the latest
mainline kernel version (it was 3.1-rcX) a few days ago if I recall
even though 3.1 was released last month.
However, as stated on the homepage, for those who use this in scripts
and such, the latest version is still 3.1-rc4:
Aug 21, 2003: Please don't use finger.kernel.org for any sort of
automatic monitoring. The number of automatic bots hitting this port
is causing the finger daemon to shut down more often than not. The
same information is available from
http://www.kernel.org/kdist/finger_banner.