Should I be worried about a large update?

So the game that I play called Dead By Daylight is doing a massive update to their Unreal Engine, all the way from 4.3 to 4.13. Should I be too worried about this? They said that they are working with it and they’ve seen “A few surprises” with the change. Is this going to break the game or something? Should I abandon ship?

well It will break it as they update it but Im assuming they will then fix the bugs before continuing to update, It should not effect the consumer if they fix the bugs it creates before release.