Sony planned to make PlayStation 4 gamers purchase another copy of Horizon Forbidden West to upgrade to the PS5 version. But the company was met with heavy criticism for this move, given its original promise that a free upgrade will be available from PS4 to PS5. Sony backtracked and said that those who will buy Horizon Forbidden West on the Play Station 4 would get a PlayStation 4 upgrade for free.
The company is also committing to a US$10 digital upgrade option for the digital and physical versions of PlayStation first-party exclusive cross-gen titles.
Source: The Verge