Ah, if UHD playback needs libbluray 1.0.2 then we're not on that yet, still 1.0.1 - the bump to 1.0.2 is on the list but we've got some RPi dependencies that need to be resolved first.
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.