请问按照：
Must first be installed the basic package 9.0
and then Complete Production Toolkit 2
Then installed the official update to version 9.0.3
Then installed the official update to version 9.0.4
And only then broke the installer.
这个说法，是否不需要升级9.0.2?直接升级9.0.3和9.0.4，然后进行he xie就完事了？