Yes. Just as before, a Corona subscription allows you to download and use any earlier version of Corona - though of course we suggest using the latest and best official release. As a note, you can now use earlier versions of Corona with either 3ds Max or Cinema 4D with an active current Corona Solo or Premium subscription.
Note that if you have a Corona Solo license, while you can use Corona 8 and older, these will also be locked to the same machine as your overall Corona license.