As a "point release," 1.8.1 specifically addressed regressions from 1.8.0: Settings Reset:
No newer DLCs (e.g., For Science! — 2023) are compatible with 1.8.1. Kerbal Space Program 1.8.1 -33459- DLC
: Fixed "jumping" Kerbals, floating debris, and robotic pistons shooting off at high speeds. installing specific mods for this version, or do you need a more detailed for the DLCs? As a "point release," 1