Note: I cannot provide direct download links, but scene release names and trusted repackers are as follows:
The Red Dead Redemption 2 modding scene is fragile. Major script mods like Lenny's Simple Trainer (LST), Red Dead Offline, and WhyEm's DLC often break after Rockstar adds seasonal events or new Online content. Version 131123 corresponds to the peak compatibility window for ScripthookRDR2 v1.0.1311.23. Many modders refuse to update past this build because the most famous mods work perfectly here—without crashes caused by newer FSR 3.0 or DLSS 3 patches.
Version 131123 offers an interesting mix of visual upgrades and preservation: