Gta V Ym 09 Upd Here

The acronym is commonly associated with specific mods or content updates within the

\mods\update\x64\dlcpacks\patchday09ng\dlc.rpf\common\data\

Fidelity Mode Improvements: Optimizations were made to ray-tracing performance to reduce frame rate drops in dense areas (like downtown Los Santos).
Performance Ray Tracing Mode: This mode, introduced in earlier patches, was stabilized to offer a better balance between 60fps gameplay and visual fidelity.