New google docs interface?

An interesting thing, I went to the Google – doc to upload a couple of documents, uploaded it, then looked for the third one, went to upload it, and the interface changed from the usual to this:



In “New Features!” Nothing seems to be said about this ... Was it something I missed a long time ago, or was I lucky enough to be one of the first to see this beauty?))
')
PS: Citizens, I will tell you, this is just some kind of web site! I am delighted!))