Deployment record: validated and queued for automatic empty-safe deployment on September 30, 2026. At this article's publication, v6.6.18 was active. Check the current-version notice on the release index before treating these changes as live.
The completed Mania collection and chart analysis refresh the native 4K and 7K catalogs, structural styles, and Farm evidence. The rooms keep their separate key modes and existing difficulty, playable-length, pass-count, and repeat policies. Vetted osu!standard converts remain Variety-only; the figures below count native Mania charts.
Across all supported star ratings and playable lengths (45–600 seconds), with Ranked/Approved status and at least 1,000 passes, the number of native charts that could potentially be selected rises from 20,071 to 20,641 (+570, about 2.8%). These are catalog-wide possibilities, not the number available in any one lobby range or moment.
| Native Mania pool | Previous catalog | v6.6.19 catalog | Change |
|---|---|---|---|
| 4K potentially selectable | 16,429 | 16,987 | +558 |
| 7K potentially selectable | 3,642 | 3,654 | +12 |
| Both rooms combined | 20,071 | 20,641 | +570 |
The refreshed catalogs have named structural style evidence for 16,675 4K and 3,593 7K charts; other eligible charts can still appear in Variety. Farm scores cover more charts, but a score is not the same as a strict .farm qualification. The recalibrated strict Farm pool has 4,406 4K and 1,028 7K qualifying charts under the same broad hard filters, or 5,434 total. That is smaller than the previous 5,835 strict qualifiers because the new score cutoffs are more selective. For eligible 45–180-second charts, the cutoffs target roughly one quarter in each key mode.
.farm still starts with the highest-scoring eligible fresh charts; if a style is exhausted, the existing fallback can broaden selection without bypassing hard filters. The research database's player-score and collection history is not needed in the compact lobby catalogs. See how Mania Farm works and selection rules.