Yes, you are right. The website of the c't magazine says:

Issue 4/2004 is due February 9, 2004

Companies appreciate it for its security and reliabilit. Private users, however, are still reluctant to use Linux. Why is that? c't tests everyday usability of system and applications and presents on the attached CD-ROM a breakting fresh Knoppix 3.4 with Kernel 2.6 for you to try out.

(translation from: http://www.heise.de/ct/inhverz/vorschau.shtml)