goto
http://www.slackware.com and check the CHANGELOG near top of page for 10.1 release, it will list what was changed, only thing I noticed is in 10.1 checkinstall works like it did in 9.1 which is good, 10.1 is mostly bugfixes, nothing major, next release should include 2.6 kernel as main default option
the libraries in 10.1 seem to be a little better in some ways, havent spent much time with it yet, still running 9.1 on main box and dont see a reason to change that, it works and ive spent lots of time getting it the way I want it LOL.