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  The streaming-only Xbox would have looked like a smaller, squarer relative of the Series S. [credit: Microsoft ]

Microsoft's mid-generation plans for the Xbox Series S and X consoles looked a whole lot different a couple of years ago than it does now. A leaked slide deck from the FTC v. Microsoft case last year outlined detailed plans for a spruced up Series S, an overhauled Series X, and even a redesigned controller. Another part of that roadmap included a streaming-only version of the Xbox, codenamed Keystone, that was designed to connect to Microsoft's Xbox Cloud Gaming servers rather than rendering games locally.

Microsoft has talked openly about this version of the Xbox before. Microsoft Gaming CEO Phil Spencer told The Verge that the Keystone console was designed and fully functional, but that it wasn't launched because Microsoft had a hard time getting the price down low enough that it made sense next to the $299 Series S (which already occasionally goes on sale in the $200 to $250 range).

Enlarge / Looking more like a refrigerator than ever before. (credit: Microsoft)

A new version of Microsoft's top-end Xbox Series X will launch without a disc drive for the first time this holiday season.

The new "Digital Edition" console option—which sports 1TB of storage and an Xbox Series S-like "Robot White" color scheme—will be available "in select markets" for an estimated retail price of $449 (or 500 euros). That price is just $50 less than the MSRP for the current, disc-drive-equipped Xbox Series X, which is currently on sale for $449 from the Microsoft Store.

Word of Microsoft's plans for a disc-drive-free Xbox Series X first leaked last September as part of the Federal Trade Commission's case against the Microsoft/Activision merger. But the new disc-free Series X bears little resemblance to the cylindrical "Brooklin" refresh shown in those leaked promo materials, which also touted redesigned internals and improved power usage. Microsoft Gaming CEO Phil Spencer said at the time that "so much has changed" from the "old emails and documents" in those leaks.