The numbers in 1.1.108.0 represent a specific build version of the software. The "1.1" refers to the core Vulkan 1.1 specification, which introduced enhanced multi-device support, subgroup operations, and better integration with DirectX. The "108.0" is the minor patch version released during that cycle. What Does VulkanRT Do?
Newer games that require Vulkan 1.3 will ignore the older 1.1 runtime. Only applications specifically built against 1.1.108 will use it. vulkanrt-1.1.108.0-installer
Version 1.1.108.0 is old. Modern games may request a newer Vulkan runtime (e.g., 1.3.250+). Fortunately, Vulkan is backward-compatible. Installing a newer version will the older 1.1.108.0 runtime. You do not need to uninstall the old version first. The numbers in 1
The specific version number indicates a particular update baseline of the Vulkan API, which introduced stabilized ray-tracing frameworks and better memory management tools for modern GPUs. How Did It Get on My Computer? What Does VulkanRT Do
Since Vulkan is bundled with your GPU drivers, the cleanest way to fix or reinstall it is to update your graphics card software.