https://rust.facepunch.com/blog/devblog-169/
Changelog:
New music system
Three new songs
Footsteps on ore nodes no longer silent
Footsteps on steep inclines play more reliably
Fixed water spawning a sack world model when dropped
Better logic to switch between walking and running footsteps
Misc audio mix tweaks
Optimized foliage displacement
Optimized effect lookup caching