It appears some readers missed this item added as an update to the Parfit post earlier this week, so I post it again here:

Jeff McMahan (Oxford) writes:  "I believe that the last public talk he gave was to the moral philosophy seminar here in Oxford in November.  In it he presented some new ideas that he was continuing to develop up until the moment of his death.  Fortunately the talk was recorded.  Here is the link if you think it would be worth posting it on your blog:  http://media.philosophy.ox.ac.uk/moral/MT16_DP.mp4."