Resolved issue appears as unresolved after SonarQube upgrade (from 10.4.0.87286 to 10.6.0.92116)

Hello,

During the SonarQube Server upgrade from 10.4.0.87286 to 10.6.0.92116, we lost a lot of accepted issues on some projects.

According to the message on the activity page, the issue detection capabilities for Java have been updated (along with Java and JavaScript quality profiles).

I saw nothing on upgrade notes indicating we may lose accepted issues. Unless I misunderstood something, the upgrade path seemed also correct.

The thing is, I am not sure about rules that govern the reopening of accepted issues (see the documentation page).

Is it something we can expect in the future ? If so, how can we know what feature update provokes that ?

Thank you for your insight !