Can you upgrade an Xbox One game to Series X version?
Yes. If your game is eligible to be upgraded to a next generation console and you go through with the upgrade from Xbox One to Xbox Series X|S, you will still be able to play the game on your Xbox One using your original copy of the game.
Do you have to upgrade games on Xbox Series X?
When the title is launched, the game automatically upgrades to the Optimized for Xbox Series X|S version if available. Note The Optimized for Xbox Series X|S version can’t be transferred back to Xbox One.
Can you upgrade Xbox One games to Series S?
Note that if you own the physical version of an Xbox One game and bought the Xbox Series S, you will not be able to enhance that game. You will need to purchase the game again digitally. There are two ways to go about upgrading your titles.
Can you upgrade Xbox One games?
You can choose to download and install the upgrade at a time that is more convenient for you – it will appear as an available update in your console’s queue. Press the Xbox button to open the guide, select Profile & system > Settings > System > Updates.