Recently when I woke up I found that my PC had shut itself down during the night, probably after a Windows update. I noticed some UI color changes, but also all my running downloads in Bittorrent had gone from its list. (The incomplete data was still there, and I could restore the downloads to their previous states after adding the .torrent files again.)
There were other small changes as well. For instance, after a download completes it is automagically deleted from the list, without any action by me. Previously I went to "Remove and" | "delete .torrent" in the context menu manually.
I would like to go back to this manual action. In this answer I found several options for deletion, but "don't delete" isn't one of them.
How can I leave downloads in the list after download completes?