PlayStation 5 Pro PSSR in Kingdom Come Deliverance II is Not Based on Latest Version potential Compatibility Issues

The PlayStation 5 Pro’s Spectral Super Resolution (PSSR) upscaler is evolving rapidly, but its implementation in Kingdom Come: Deliverance II suggests that not all games will benefit from the latest versions. According to discussions on the ResetERA forums, the game utilizes version 9.60 of PSSR, despite the fact that newer versions are already in development.

Kingdom Come: Deliverance II and PSSR 9.60

Kingdom Come: Deliverance II, the sequel to the popular medieval RPG, was released earlier this month with PlayStation 5 Pro enhancements. However, a developer on ResetERA confirmed that PSSR 9.60 is not the latest version, but due to NDA restrictions, they couldn't disclose further details on the newest iteration.

This revelation highlights how quickly Sony is iterating on PSSR, but also raises questions about how developers are integrating these updates into their games. The high version number of PSSR suggests frequent refinements, yet many titles may not immediately benefit from these improvements.

Unreal Engine 4 Games Face Compatibility Challenges

A few days earlier, the same developer shed light on an important issue: Unreal Engine 4 (UE4) games may struggle to adopt newer versions of PSSR. In a forum post, they explained that UE4 only officially supports the initial PSSR version, meaning that to implement newer upscaling versions, developers must manually backport parts of Unreal Engine 5 (UE5) code.

Since Epic Games no longer provides official updates for UE4, studios wanting to utilize the latest PSSR versions need to invest additional time and resources to adapt their games. This is why some patches take longer to release, and in some cases, older games may never receive updates for newer PSSR versions.

The Future of PlayStation 5 Pro’s PSSR Technology

PSSR is one of the defining features of the PlayStation 5 Pro, offering higher resolutions and better performance for supported games. However, the technical hurdles facing UE4 games indicate that not all titles will fully leverage Sony’s latest advancements.

While newer games built on Unreal Engine 5 will likely have seamless PSSR integration, existing UE4-based games may be stuck using older upscaler versions unless developers invest time into manual backporting. Given that this process can be time-consuming and costly, many games might never receive updates to the most current PSSR versions.

The PlayStation 5 Pro's PSSR upscaler is evolving rapidly, but developer challenges with Unreal Engine 4 may limit its full potential in some titles. As Sony continues refining PSSR, it will be interesting to see how many developers commit resources to keeping their games updated.

Do you think Sony should work on making PSSR updates easier to implement, or should developers prioritize moving to Unreal Engine 5 for better long-term compatibility? Let us know in the comments!