kaheimri
commented
1 year ago This feature has been removed due to the fact that it was using a hack to store the Qt version used for the whole solution. This hack has become a major obstacle to migrate project handling to the latest project format and was therefor removed. Unfortunately we will not be able to bring this functionality back.
On the latest version, when right-clicking on the solution, there is no "Change Solution's Qt Version" option in the Qt menu. It seems that this feature has been removed.