It's official. From the ChangeLog:

"Slackware 11.0 is released. Thanks to everyone who helped out and
made this release possible. If I forgot you in the ChangeLog, mea culpa,
but you know who you are, and thanks. :-)
Enjoy! -P."

Ships with 2.4.33.3, 2.6.17.13 in /extra, and 2.6.18 in /testing. =)

http://slackware.com/announce/11.0.php
http://slackware.osuosl.org/slackware-current/ChangeLog.txt