I already know that even with this being said it will still be asked about 35 times today but when V4 is released there is a 99.999% chance you will have to remove V3 and put V4 to work. AND based off whats been said it will work perfectly for RoR 37.XXX and same with V3 anything past RoR Version 38.19 some trucks wont work and some may crash your game.