It's official - Slackware 13.1 has been released. See the Slackware website.
Lots of interesting new stuff, and plenty of reading to do.
I started with Slackware 3.0 back in 1995. It's come a long way since then, but it's still comfortingly familiar. A really high quality operating system packaged plainly and cleanly and securely. Slackware lives on, stronger than ever.