Included in the currently observed v6.7.30 and v6.7.32 workers. This patch reduces repeats of the same song across different difficulties and NoMod/DT variants.

Automatic picks avoid recently completed song families for roughly an hour of rounds. The window is estimated from the median played length of the last 20 completed maps, plus 25 seconds between rounds, and is bounded to 4–120 rounds. At 120 seconds per map, that is 25 rounds. This is an adaptive round window, not an exact wall-clock timer.

Song matching normalizes artist/title and common TV, cut, short and sped-up suffixes; named remixes keep their own identity. It is conservative text matching, not audio fingerprinting. Standard Farm, Stream, Jump and Variety and Mania selection use this spacing. Existing exact-chart avoidance remains separate.

When the eligible pool is too narrow, the oldest song history is relaxed only as needed; stars, style, duration and exclusion rules still apply. Only completed rounds advance this longer history. Unplayed skips and speculative picks do not. Explicit replay remains a separate player vote.

History survives source/difficulty changes, empty-session resets and periodic relisting within the same worker. A replacement worker starts fresh in-memory history.

Repeated maps · Map selection · Release history