text: bing goes to z20 which dates it to maybe half a decade ago; esri clarity is maybe a decade old as earlier bing z19.  mapbox is typically newer, a couple years old maybe.
  
  esri, an obvious satellite view, is the only other view available in my potlatch2 as the maxar api keys are no longer available via plaintext URLs, so without a quick look into iD i can't say anything about it or the WMS imagery offerings either.
  
  the outline and appearance looks unchanged in esri which i take to be newer, so i'm not sure why they had to take such a drastic measure right after my visit some years ago...