The answer lies almost entirely in modding stability. The majority of Fallout 4 's most popular and essential mods—particularly those that rely on the —were built and optimized for version 1.10.163. Many of these mods have since become inactive or abandoned by their developers, meaning they will never receive updates for newer game versions.
End of document
: The patch integrated 40 new items into the workshop catalog, featuring customizable weather cycles, audio filters, and visual render settings. The Modding Nexus: Why 1.10.163 Refuses to Die Fallout 4 Update 1.10.163
To keep your 1.10.163 installation safe from future accidental updates, change your Steam settings: Right-click Fallout 4 in your Steam Library. Select > Updates .
The historical weight of update 1.10.163 isn't tied to what it added, but rather what came after it. Following this patch, subsequent major updates shifted the internal application architecture, frequently breaking the foundational code utilities that community developers spent years constructing. Version 1.10.163 represents the absolute final "Pre-Next-Gen" build where every legacy mod works natively. 1. Total Script Extender Compatibility The answer lies almost entirely in modding stability
Today, 1.10.163 is primarily relevant for PC players who wish to use a vast library of "legacy" mods that were broken by the 2024 Next-Gen update.
Community mod authors have mixed feelings. Veteran modder Kinggath (Sim Settlements 2) noted on Discord: "This is a double-edged sword. It's good that they are finally fixing the native next-gen bugs, but changing the executable this late kills the 'final build' that modders had stabilized for two years." End of document : The patch integrated 40
The Fallout 4 Script Extender (F4SE) serves as the backbone for complex UI changes, custom animation frameworks, and memory adjustments. Hundreds of deeply structural mods were written specifically for the 1.10.163 iteration of F4SE. When updates change the game's executable file, F4SE breaks completely until rewritten, leaving abandoned yet vital community mods permanently non-functional on newer editions. 2. The Fallout: London Standard
If you see these numbers on your loading screen, you have officially entered the next-gen wasteland—warts and all.
Because of these issues, the version just before this overhaul – version – became the gold standard for modding. It became the stable "old-gen" foundation for a massive library of mods, especially for ambitious projects like the highly anticipated Fallout 4: London mod.
The stable, heavily modded, older executable.