Why do we need to use the latest beta to upload our games?
This is exclusive for bug reporting only to see whether the issue have been addressed or not. The stable version are meant for those who want to continue developing in stable version. So if you found a bug in stable version, test it in the latest beta, if the bug persist then only you file a bug report, otherwise assume the issue has been addressed for the next stable release.
edit: lol I misunderstand the first post, sorry