Security has been strengthened in this upcoming release, introducing features that forestall possible vulnerabilities. The Debian installer, for example, applies security updates before booting, several critical security packages have been built with GCC to toughen them up, and the overall system contains less open ports and less setuid root binaries.
Lenny will sport KDE 3.5.9 over the still not so popular KDE 4.2, and will have "OpenOffice.org 2.4.1, GIMP 2.4.7, Inkscape 0.46, Emacs 22 and both Iceweasel and Icedove" in the arsenal of default programs.
For those interested in the server end of things, the new release will contain "PostgreSQL 8.3.5, MySQL 5.1.30 and 5.0.51a, GNU Compiler Collection 4.3.2, Samba 3.2.5, Python 2.5.2 and 2.4.6, Perl 5.10.0, PHP 5.2.6, Asterisk 188.8.131.52, Nagios 3.06 and the Xen Hypervisor 3.2.1."
The system has gotten more mobile-friendly with better support for notebooks in the form of a CPU frequency scaling feature that allows a user to alter the processing power based on what applications are running, among other things.
According to a German report, lenny will be welcomed with open arms by the community, but you'll just have to hold your horses until this Saturday, February 14th (hopefully), to show your love for Debian.