I have only dropped the 4K patch from 4.8 as that didn't seem to be working as expected (no sound). The Chris Wilson patch is no more as that was only for 4.7.x.
Texture Cache Maintenance Utility: Preload your texture cache for optimal UI performance. Remotely manage media libraries. Purge unused artwork to free up space. Find missing media. Configurable QA check to highlight metadata issues. Aid in diagnosis of library and cache related problems.