- **A server can add a note to a reference a push moved (#148).** `oxy-server`'s `Backend` has a `push_notes` step: each note is added to that accepted reference's result, which `oxy push` shows in place of "updated". OxygenHub will use it to say when a push moves the bookmark of a proposal that has already landed (oxygenhub#329).
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- **Identical sides settle by themselves (#146).** Two bookmarks that each resolved the same conflict to the same text conflicted again when merged, both sides the identical lines. A conflict whose sides are byte-identical now settles as `merge=union` adjacent insertions do (#145), in any file and keeping one side: a checkout writes it once ("kept one of its identical sides") and the next commit records the resolution, and a host landing a proposal settles it too.