Red Dead Redemption 2 -version 1311.23- Multi13... ((install)) -

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It addressed a bug where players were unable to enter single-player or multiplayer modes after a crash, and fixed an issue causing abrupt changes to the time of day. Red Dead Redemption 2 -version 1311.23- MULTi13...

Visual & Technical Highlights

• Graphics: The Vulkan renderer in v1311.23 is mature. No missing snow deformation, no texture pop-in, and HDR (if your monitor supports it) works correctly without the washed-out look of v1.0.
• Audio: Full 3D spatial audio works for all 13 included languages. English voice acting remains the gold standard; localized versions (French, German, Spanish) are well-synced for cutscenes.
• Save Game Compatibility: Saves from this version are forward-compatible with newer patches but not backward-compatible with v1.0. Keep that in mind if you plan to move to an official Steam/Epic version later.

It looks like you are referencing a specific release of Red Dead Redemption 2 Graphics: The Vulkan renderer in v1311