We are seeking a list of precautions and known bugs/caveats to plan the update from 12.5.30 to Onyx. For example is it recommended to de-activate ModSecurity and Fail2Ban before trying the upgrade? Are there any known risks, e.g. services that might not start after the upgrade because of changed configuration file locations or other reasons? How do we have to understand that update? Does it replace system libraries or does it only replace Plesk-owned scripts?