One of BOTW’s long-standing issues was a memory leak when fast-traveling repeatedly or playing for 4+ hours straight. Update 1.6.0 plugged several leaks, reducing the chance of the game crashing on Wii U and improving long-session stability on Switch.
If you’re replaying BotW and found the original performance annoying, 1.6.0 is worth getting . It’s a “work” update – under-the-hood polish, not fireworks. For a first-time player, the original 1.5.0 is still fine. But for veterans, this makes Hyrule feel a little smoother without changing the magic.
Yuzu verdict: Works perfectly, but you must use mods built specifically for 1.6.0.