The kernel tulinux of KDE is not supported for a long time.

Article title: kernel tulinux of KDE is not supported for a long time. Linux is a technology channel of the IT lab in China. It includes desktop applications, Linux system management, kernel research, embedded systems, open source, and other basic categories. two dominant open source software projects provide a graphic user interface for Linux, however, only one of them has long-term support for the next LTS version of Ubuntu, that is, version 8.04. Ubuntu's default user interface GNOME will be supported, but KDE will not. According to the reason given by Ubuntu's Canonical company, KDE is in a transitional period between two new versions, from the old 3.5 to the unreleased 4.0, canonical hopes to resume its support for KDE soon.

Scott James Remnant, Ubuntu desktop development director, defended the decision on the Kubuntu email list, indicating that developers' interests are now concentrated on KDE 4.0, however, it is not mature enough to be applied in the next generation of KDE-based Ubuntu version, that is, Kubuntu. At present, the vast majority of Kubuntu Developers add new features of existing products on the basis of KDE 4.0, which means that the long-term support of KDE 3.5-based versions will pose a great risk.