The base version (RTM) and subsequent Hotfix/Service Pack (HF/SP) installers were originally created using WiX Toolset version 3. I am now attempting to migrate the HF/SP setups to WiX Toolset version 5, while keeping the RTM built with WiX 3.
However, after installation of HF , I encountered an issue where the registry entries defined in the hotfix were not updated correctly.
Has anyone successfully implemented a scenario where the RTM is built with WiX 3 and the hotfix is built with WiX 5? If so, I would appreciate any guidance or insights.