The latest update to the Clement's Checklist (version 6.7) was made available through the Cornell Lab or Ornithology on 28 September 2012. The resulting changes increased my life list total by one species. Gray Hawk was split, resulting in a new species, the Gray-lined Hawk. I had seen the former in Arizona, and the latter in Panama. My life list is now 1,228.
A couple of other splits in the list have resulted in me having seen a species different from the original nominate. These include Thrush-like Schiffornis, split into five species, of which I have seen Rufous-winged Schiffornis in Panama, and Stonechat, split into three species, of which I have seen European Stonechat.