There are so many new amazing features, and they don't let anyone use them because Hypixel is pandering to the one minecraft player who hasn't realised that minecraft updated past 1.8. If they want to do that, why don't they go all the way back to alpha 1.0.15, since I'm sure that there is at least one player still there. I know that some people are going to mention the new combat system, but the new system is simple and easy. It's only slightly more complicated than the old button mashing system. Also, they can probably use plugins to disable it anyway.