The runtime is what every mod runs on. It is installed for you by Launcher 0.5.0 and later, so there is nothing here to download by hand.
Added
- UE4SS 3.0.1, with the memory signatures and configuration verified against the 2026-08-01 game build, plus the four framework mods UE4SS cannot run without.
Security
- The manifest is signed, with the same key the launcher has built into it. The modpack this replaces had no signature at all, which meant the largest and most privileged thing this platform ships — a library injected into the game process — was also the least verified.
- The bundle contains no mods. Mods come from the signed code-mod set, which records what it installed and can check it afterwards. The modpack shipped both together, so mods arrived by a route nothing could attribute or verify, and one could go missing with nothing able to notice.
- Upstream inputs are pinned by URL and by hash, and stored under keys that are never overwritten. UE4SS publishes experimental builds under a moving tag whose files are replaced in place, which had already cost one build: the version verified working in the game is no longer downloadable from upstream at all.