Most additional libraries don't appear in maintenance tool in Qt 6.9.0

[zetasen]

Hello. I need to install the state Qt State Machines library. I am using Qt version 6.9.0. In the Maintenance Tool it doesn't appear:

In version 6.9.3 it appears and several others libraries:

continuation:

So what is going on? How do I install that library?

This is my kit:

Thanks.

[zetasen]

I just installed Qt 6.9.3 and it worked. Now, why in version 6.9.0 doesn't appear the other libraries I don't know.

[GrecKo]

Because the maintenance tool only show modules for the latest supported releases and preview by default (+ your already installed modules).

You need to enable the Archive category to view older module. In my maintenance tool it's in a Category tab on the right, in yours maybe it's in the "Show" combo box.