That sounds like a solid update for an immersive sound mod! Version 5.9 usually means the creator has refined the loops and transitions to be nearly seamless. Why these mods are essential:
: Rain intensity often matches the visual density on screen. REALISTIC WATER & RAIN & THUNDER SOUNDS V5.9 ET...
: Thunder feels powerful rather than just a background pop. That sounds like a solid update for an immersive sound mod