It also works for all previous versions down to Unity 4. Unfortunately the Asset Store publisher UI changed and their new upload tool prevents me from specifying all the details as with the previous version.

I have to admit it's really annoying because many people are misled by the asset description. I'll ask Unity support if they can do something about it.

Follow-up.

Unity is not being helpful at the moment. When I tell them some assets just don't fit in their categories, their support basically lectures me about their new submission guidelines paperwork.

I understand they want to skim the Asset Store from old assets and force people to use newer versions of the Unity editor. Seems legit. But their new submission guidelines are just ridiculous : for an asset to be exposed, it should be uploaded to the store from _each and every supported version of the Unity editor_ (a multi-gigabyte download and setup each time) !

I've shown them some numbers, and heavily insisted on the fact that everybody was incurring losses with that new policy, let's hope it'll change something.

I've received another reply, a more pondered one this time. As a mitigation measure their explanations suggest that I should indicate on the asset description page that it's compatible with more Unity versions than just the one indicated by the store. I'm going to do that.

Let's hope it clarifies the situation enough for all users.