migration of HF/SP setups from Wix tool set 3 to Wix tool set 5 where RTM is using WIX 3

[PavanKumarUrimi]

Question

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.
@robmen @barnson @rseanhall Please provide your inputs on this

Open Source Maintenance Fee

• I (or an organization I'm a member of) pay the Open Source Maintenance Fee by sponsoring the wixtoolset project because I support the maintainers.

[wmanning]

Maybe this is related to your issue: #7778