Hello,
when starting the Editor (Community Edition) it shows a 9.9.3 in the upper right corner:
I thought that this should be the version of the installed Community edition but after downgrading the package “Developer´s System CE” from 9.9.3 to 9.9.0 the text stays on 9.9.3.
Because of the way the dependencies work you aren’t changing all the related packages by updating this way. So, if a version existed already it would have stayed. It’s probably best to run the full installer to stay in sync.