Once installed, you can verify it's working by launching the game and using the following default controls: : Open/Close the Native Trainer menu. Numpad 2/8/4/6 : Navigate the menu. Numpad 5 : Select an option. Numpad 0/Backspace : Go back.
For modders, this update broke many existing scripts, requiring a new version of Script Hook V. was released by Alexander Blade shortly after to restore functionality. 1.0.2802 Script Hook V