The seller portal only allows the upload of a plugin for the latest 3 engine versions, this means that when UE5.2 will be released we won’t be able to “officially” publish plugins for 4.27.
You can publish content-only asset packs for older versions (I know because I’ve recently uploaded a project made for Unreal4.20), why are plugins different?
I don’t know if FAB will effectively replace the Epic Marketplace (Honestly, I hope it will replace the entire Epic Launcher), but It would be a bummer to lose potential sales for older versions.
Let me know what you think!
Have a nice day!