https://www.guru99.com/compatibility-testing.html
Apr 12, 2024 - Compatibility testing is to check whether your software is capable of running on different hardware, operating systems, applications , mobile devices.
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https://twinfinite.net/news/playstation-4-pros-forward-compatibility-will-improve-existing-ps4-games/
Sony's new PlayStation 4 Pro console's "forward compatibility" will upgrade the graphical performance of some existing PS4 games.
forward compatibilityplaystationproexisting