I agree that it can be a bit confusing as to which version is the newest one, so we should definitely make this a bit more intuitive…
But I suggest you read this thread: https://forum.corona-renderer.com/ Version differences and their purpose
tl;dr: We release daily builds only until we think the version is stable enough. Then we start releasing release candidates, followed by a stable release. After that, the release can be fixed through hotfixes.