This should fix some of the recently reported bugs such as:
third-party controllers not working correctly
music glitch when moving from one race to the next
all of the dynamic sounds playing at too low of a frequency
and one unreported bug:
some transparent track sections had depth-sorting issues related to turning off PowerVR TR autosort. Those are resolved (unless you're watching the demo mode/replays or driving the track backwards, then all bets are off).