10.0.4 is the latest of 10.0 series. I don't know why someone would use it as it is very buggy and SSLLOOWW... You are better to go to os 9 or get a copy of either 10.1, 10.2, and 10.3. The update from 10.0 to 10.1 was free at the end of 2001, but it is now impossible to find the free upgrade disk. Do what you think better suits your needs.
Bonne chance
