Unity Packages and 2019.3 .metas backwards compatibiliy

I have a question regarding backwards compatibility with .meta files. As they get modified when I migrate from 2018.4 to 2019.3.

So I have the following scenario:

Module Z: A Unity Package created with Unity 2019.3 which has some code and a prefab.
Project Beta: A Unity Project using 2018.4 includes module Z through Unity Package Manager.

Is there a problem doing this? Do you foresee any issues? I would like to know this because I need to share code between projects with different unity version and I want to avoid having 2 different versions of the module.

 

Bump

 

I don't know about your specific situation other than Unity has no support for downgrading Unity versions for projects or anything exported. It will either work or it won't. No automatic conversion will take place like you see when going to a newer Unity version.