Before dissecting Beta 11, a quick refresher. Tuff Client is a third-party Minecraft utility mod (typically for versions 1.8.9 and 1.16.5) that focuses on modularity. Unlike bloated clients that try to do everything, Tuff Client focuses on "tactical utility"—offering ESP (Extra Sensory Perception) visuals, hitboxes, potion timers, and advanced inventory management without sacrificing FPS (Frames Per Second).
Even a polished beta has bugs. Here are the top three user-reported issues with : tuff client beta 11