Obviously, a site running on old Magento1 and Magento2 version is a no-no. Getting it updated is the need of the time for the extensions and themes running on this version demands latest Magento variant. Upgradation of the same enhances the user-experience for it helps keeps a check on the speed, security, check out time, shopping cart configurations, performance and also fixes the underlying bugs.
Along with the Magento up gradation, we also make use of upgraded theme & extensions. Also, we focus on making the custom script that is compatible with the latest Magento version.