Is Diablo 4 coming to PS4? In short, yes - N4G

You'll also be pleased to know that you'll be able to upgrade the PS4 version to the PS5 version of the game for no extra cost too.
You'll also be pleased to know that you'll be able to upgrade the PS4 version to the PS5 version of the game for no extra cost too.

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Is Diablo 4 coming to PS4? In short, yes - N4G

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Diablo 4 just rolled back its most controversial patch change