Jeff. I understood about the capture/replay for "upcoming" release past 16.0GA. As I said, looking "forward" to it. I would also point out that the NFG doesn't really convey what you and others have generously described above regarding internal changes around more efficient spinlock processing, etc. (other than the obvious "feature" changes).
Just reflecting on the more recent major releases (especially the earth-moving 12.x -> 15.x), yes, the "continuous innovation" style seems to be a paradigm shift for those of us who have been looking on for so many years 
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