D800 and LR 5.3
I finally decided to upgrade from LR 4.x to LR 5.3. I waited until the forums died down, then began the upgrade on Wednesday afternoon. The status bar seemed to never move, but when I awoke this morning, the upgrade had completed. My catalog only has 665,000 images, so your conversion may take longer.
All I can is WOW. My 640 iso D800 shots look 100% better. Noise seems nearly nonexistent. I am glad I waited, and am darn glad it's done.
You Will Never Walk Alone