Upgrade

Hello,

I want to know if there is any safe mode to upgrade to the latest SuiteCRM version without losing costumization?
What I mean with “without losing costumization” for example: I’ve added new custom field and don’t want to lose that .

Thanks for your time.

if you made modifications via studio they will always get updated with your upgrades, if you touch manually some files or add others maybe they will be overwritten or deleted

best regards