Since I have never split anything I'm afraid I can't add anything useful there, but I can say that this is the very first update where I've seen an immediate impact on OOM's! Currently working on a large file that would cause an OOM prior to EVERY fullscreen (1280x1024/volumetric/GI) render(thank goodness still allowing the render to go forth, but necessitating a save following the render and the reopening of the scene for the inevitable tweaking...hehe), but after loading this newest update this problem has vanished!

fingers crossed here
Steve