Subsequent updates under the same version number addressed sporadic desktop crashes (exception code 0xc0000374 ) and increased the online protocol version for better multiplayer compatibility. The Core v1.8 Foundation
The higher refresh rate allows for cleaner, more granular feedback through the wheel, though it may require "unlearning" old muscle memory due to changes in how cars rotate and brake. Assetto Corsa Competizione [v1.8.18]
Deep dive into the v1.8.18 update and the massive v1.8 physics overhaul that defines it: Subsequent updates under the same version number addressed