All-new playback core, with many, many improvements and optimizations
They weren't kidding! I made a video comparing Infuse 4 vs Infuse 3.6.2. Huge difference with HEVC / h.265 video playback. It was smooth with Infuse 4 and completely unusable with Infuse 3.6.2. I made a video comparing them here:
https://youtu.be/NLAeFtubVu0