I don't remember which version of Kubuntu came with KDE 4.0 for the first time, but what I will never forget is that it was a complete disaster due to the instability of the desktop at the time.
Angikhumbuli ukuthi iyiphi inguqulo ye-Kubuntu eza ne-KDE 4.0 okokuqala, kepha engingasoze ngakukhohlwa ukuthi bekuyinhlekelele ephelele ngenxa yokungazinzi kwedeskithophu ngaleso sikhathi.