Hi, the tool seems to be counting more edits as being without edit summaries all of a sudden. Could you tell me what edits are now being counted as without? Is it starting new pages or use of a tool like twinkle perhaps?
Topic on Talk:XTools
It's due to a WMF database migration. All summaries should return in a few days (hopefully). I'm putting up a disclaimer in the XTools interface, and will look into an interim solution until WMF is done with the migration. You can follow updates at phab:T189234.