STEAMYDATA

McOsu — patch notes and updates

Stored observation / content update:

Dated developer announcements recorded from Steam. Open the source for the complete update.

UpdateDateExcerpt / source
Update (version 33.14)2026-02-20- \ Starting with this version (33.14), the legacy 32-bit OpenGL build will only be used for VR- \ The Steam launch option "Play on Desktop" has been updated to use the 64-bit DirectX11 build for all players- \ Executable names have not changed, so if you are launching the game externally without Steam then everything is the same- \ Added proper in-game console window with log scrollback (Options > Maintenance > Console)- \ Added Options > Maintenance > Console > "Prefer Window instead of Textbox" (for SHIFT + F1 hotkey combo)- \ Upgraded to 64-bit executable based on new engine version and modern toolchain- \ Improved DX11 rendering performa
Update (version 33.13)2025-12-14- Updated pp algorithm to better handle ScoreV2 cases for ScoreV1-based misscount estimation (thanks to @Givikap120!) - Updated pp algorithm to disable ScoreV1-based misscount estimation for all older ScoreV2 McOsu scores (discrepancy with osu_slider_scorev2) - Updated "Use ScoreV2 Slider Accuracy" to only affect slider head accuracy and not force store the ScoreV2 mod as enabled (osu_slider_scorev2)
Update (version 33.12)2025-12-07- For more info on the star/pp changes in this update see https://osu.ppy.sh/home/news/2025-10-29-performance-points-star-rating-updates - Updated star + pp algorithms to match current lazer implementation aka 20251007 (20) (thanks to @Givikap120!) - Added new experimental mod "No Spinners" - Added Options > Songbrowser > "Song Buttons Velocity Animation" - Added Options > Songbrowser > "Song Buttons Curved Layout" - Updated songbrowser song buttons to have the velocity animation disabled by default - Updated "Sort by Artist" to secondarily sort by title - Updated mod selector when changing AR/OD live while playing a beatmap to instantly upda
Update (version 33.11)2025-04-22- For more info on the star/pp changes in this update see https://osu.ppy.sh/home/news/2025-03-06-performance-points-star-rating-updates - Updated star + pp algorithms to match current lazer implementation aka 20250306 (19) (thanks to @Khangaroo!) - Added "Sort by Unstable Rate (Mc)" to score sorting options - Added ConVars: osu_unpause_continue_delay, osu_confine_cursor_gameplay - Updated "Sort by pp (Mc)" to always show pp scores above scores without pp values - Updated Top Ranks screen to show speed multiplier on non-1.0x scores - Updated scorebrowser tooltips to also display UR next to Accuracy - Updated right click > "Use Mods" to persis
Update (version 33.10)2025-01-09- Updated osu!stable database loader to support new 20250108 format (see https://osu.ppy.sh/home/changelog/stable40/20250108.3)
Update (version 33.09)2024-11-07- For more info on the star/pp changes in this update see https://osu.ppy.sh/home/news/2024-10-28-performance-points-star-rating-updates - Updated star + pp algorithms to match current lazer implementation aka CSR aka Combo Scaling Removal aka 20241007 (18) (thanks to @Khangaroo!) - Increased performance of live star/pp calc by ~100x (yes, two orders of magnitude faster. thanks to @Khangaroo!) - FPoSu: Added Skybox cubemap support (Options > FPoSu - Playfield > "Skybox", enabled by default) - FPoSu: Added Options > FPoSu - Playfield > "Background Opacity" (transparent playfield backgrounds so you can see the skybox/cube through it) - Added C/
Update (version 33.08)2024-01-03- Added hittable dim (hitobjects outside even the miss-range are dimmed, see https://github.com/ppy/osu/pull/20572) - Added Options > Gameplay > HUD > "Draw HitErrorBar UR" (Unstable Rate text display above hiterrorbar, enabled by default) - Added ConVars (1): osu_hud_hiterrorbar_ur_scale, osu_hud_hiterrorbar_ur_alpha, osu_hud_hiterrorbar_ur_offset_x/y_percent - Added ConVars (2): osu_beatmap_max_num_hitobjects, osu_beatmap_max_num_slider_scoringtimes - Added ConVars (3): osu_hitobject_hittable_dim, osu_hitobject_hittable_dim_start_percent, osu_hitobject_hittable_dim_duration, osu_mod_mafham_ignore_hittable_dim - FPoSu: Updated FOV sliders to
Update (version 33.07)2023-10-12- Reenabled IME support to fix blocking keyboard language switching hotkeys (add "-noime" launch arg to get the old behavior back in case of problems) - Improved console autocomplete - Fixed pie progressbar fill being invisible under certain conditions
Update (version 33.05 + 33.06)2023-08-15- Added option "\ RawInputBuffer" (Options > Input > Mouse) - Added ConVars (1): osu_mod_random_seed, osu_hud_statistics_*_offset_x/y, osu_slider_max_ticks - Added ConVars (2): osu_background_color_r/g/b - Updated mod selection screen to show rng seed when hovering over enabled "Random" experimental mod checkbox - Fixed another set of star calc crashes on stupid aspire beatmaps (lowered slider tick limit, no timingpoints) - Linux: Fixed major executable corruption on newer distros (Ubuntu 23+) caused by gold linker (all files written were corrupt, e.g. scores.db or osu.cfg, also segfaults etc.)
Update (version 33.04)2023-02-26- Updated star + pp algorithms to match current lazer implementation aka 20220902 (16) (thanks to @Khangaroo!) - Fixed visual vs scoring slider end check in new lazer star calc (@Khangaroo) - Added option "Disable osu!lazer star/pp algorithm nerfs for relax/autopilot" (Options > General > Player) - Fixed extremely rare AMD OpenGL driver crash when slider preview in options menu comes into view (via workaround) - Added ConVars: osu_options_slider_preview_use_legacy_renderer, osu_songbrowser_scorebrowser_enabled - Disabled new star/pp algorithm relax/autopilot nerfs by default in order to match previous behavior
Update (version 33.03)2023-01-15- Added new experimental mod "Half Timing Window" - Added "Quick Seek" key bindings (jump +-5 seconds, default LEFT/RIGHT arrow keys) - Added hitobject type percentage support to songbrowser search (e.g. "sliders>80%") - Added ConVars (1): osu_seek_delta, osu_end_skip, osu_mod_halfwindow_allow_300s - Added ConVars (2): osu_songbrowser_search_hardcoded_filter, osu_hud_scrubbing_timeline_hover_tooltip_offset_multiplier - Added ConVars (3): osu_skin_force_hitsound_sample_set, osu_hitobject_fade_in_time - Added ConVars (4): osu_ar_overridenegative, osu_cs_overridenegative - Added ConVars (5): osu_songbrowser_button_active/inactive_color_a/r/g/b,
Update (version 33.02)2022-06-28- Windows: Added support for mixed-DPI-scaling-multi-monitor setups (automatic detection based on which monitor the game is on) - Windows: Added support for key binding all remaining mouse buttons (all mouse buttons can now be bound to key binding actions) - macOS: Fixed general breakage hopefully (still no high-DPI/retina support) - Fixed osu_mod_random in cfg affecting main menu button logo text sliders - Fixed very wide back button skin images overlapping other songbrowser buttons and making them impossible/invisible to click - Fixed pen dragging playstyles potentially causing unintentional UI clicks when in-game screens/panels are switche
Update (version 33.01)2022-06-05- Linux: Switched to SDL backend (mostly for Steam Deck multitouch support) - FPoSu: Added cursor trail support (can be disabled in Options > Skin > "Draw Cursor Trail", or fposu_draw_cursor_trail) - Added new experimental mod "Approach Different" - Added new experimental mod "Strict Tracking" - Added new main menu button logo text - Added "most common BPM" in parentheses to top left songbrowser info label (e.g. "BPM: 120-240 (190)") - Added beatmapID and beatmapSetID columns to osu_scores_export csv - Added "Reset all settings" button to bottom of options menu - Added PAGEUP/PAGEDOWN key support to songbrowser - Added ConVars (1): osu_follow
Update (version 33)2022-01-16- Added collection management support (Add/Delete/Set/Unset collections, right-click context menu on beatmap buttons) - FPoSu: Added new experimental mod "Strafing" - Added gamemode selection button to songbrowser (no, skins abusing this as a decoration overlay are not supported) - Added support for "ScorePrefix" + "ComboPrefix" + "ScoreOverlap" + "ComboOverlap" in skin.ini - Added option "Show osu! scores.db user names in user switcher" (Options > General > Player) - Added option "Draw Strain Graph in Songbrowser" (Options > General > Songbrowser) - Added option "Draw Strain Graph in Scrubbing Timeline" (Options > General > Songbrowser) - Ad
Update (version 32!)2021-01-16- Initial rewrite of songbrowser and entire internal database class architecture (not fully finished yet) - Songbrowser can now handle individual diff buttons and/or split from their parent beatmap/set button - Collections now correctly only show contained diffs (previously always showed entire set) - Similarly, searching will now match individual diffs, instead of always the entire set - However, sorting still only sorts by beatmap set heuristics, this will be fixed over time with one of the next updates - All pp scores can now be recalculated at will, so click on "Recalculate pp" as soon as possible (Songbrowser > User > Top Ranks > Menu) -
Update (version 31.11)2020-06-25- Added option "Inactive" (Options > Audio > Volume) - Added hitresult fadein + scale wobble animations (previously became visible instantly as is) - Added ConVars (1): osu_hitresult_fadein_duration, osu_hitresult_fadeout_start_time, osu_hitresult_fadeout_duration - Added ConVars (2): osu_hitresult_miss_fadein_scale, osu_hitresult_animated, osu_volume_master_inactive - Improved hitresult animation timing and movement accuracy to exactly match osu!stable (fadein, fadeout, scaleanim) - Fixed hitresult animations not respecting speed multiplier (previously always faded at 1x time) - Fixed aspire timingpoint handling (e.g. XNOR) (2) . (As always,
Update (version 31.10)2020-06-07- Added 2 new notelock algorithms: McOsu, osu!lazer 2020 (Karoo13's algorithm) - Added option "Select Notelock" (Options > Gameplay > Mechanics) - Added support for ranking-perfect (skin element for full combo on ranking screen) - Added "FC" text after 123x to indicate a perfect full combo on highscore and top ranks list - Added ConVar: osu_slider_end_miss_breaks_combo - Updated osu_drain_lazer_break_before and osu_drain_lazer_break_after to match recent updates (Lazer 2020.602.0) - Updated hp drain type "osu!lazer 2020" for slider tails to match recent updates (Lazer 2020.603.0) - Updated scrubbing to cancel the failing animation - Fixed "Qu
Update (version 31!)2020-02-11- Added HP drain support - Added 4 different HP drain algorithms: None, VR, osu!stable, osu!lazer - Added option "Select HP Drain" (Options > Gameplay > Mechanics) - Added geki/katu combo finisher (scoring, skin elements, health) - Added Health/HP/Score Bar to HUD - Added option "Draw ScoreBar" (Options > Gameplay > HUD) - Added option "ScoreBar Scale" (Options > Gameplay > HUD) - Added section-pass/section-fail (sounds, skin elements) - Added option "Statistics X Offset" (Options > Gameplay > HUD) - Added option "Statistics Y Offset" (Options > Gameplay > HUD) - Added keybind "Toggle Mod Selection Screen" (Options > Input > Keyboard > Keys -
Update (version 30.13)2020-01-12- Added searching by beatmap ID + beatmap set ID - Added CTRL + V support to songbrowser search (paste clipboard) - Added speed display to score buttons - Added support for sliderslide sound - Added Touch Device mod (allows simulating pp nerf) - Added option "Always enable touch device pp nerf mod" (Options > General > Player) - Added option "Apply speed/pitch mods while browsing" (Options > Audio > Songbrowser) - Added option "Draw Stats: 300 hitwindow" (Options > Gameplay > HUD) - Added option "Draw Stats: Accuracy Error" (Options > Gameplay > HUD) - Added option "Show Skip Button during Intro" (Options > Gameplay > General) - Added option
Update (version 30.12)2019-12-19- Added button "Random Skin" (Options > Skin) - Added option "SHIFT + TAB toggles everything" (Options > Gameplay > HUD) - Added ConVars (1): osu_mod_random_circle/slider/spinner_offset_x/y_percent, osu_mod_hd_circle_fadein/fadeout_start/end_percent - Added ConVars (2): osu_play_hitsound_on_click_while_playing, osu_alt_f4_quits_even_while_playing - Added ConVars (3): osu_skin_random, osu_skin_random_elements, osu_slider_body_unit_circle_subdivisions - Windows: Ignore Windows key while playing (osu_win_disable_windows_key_while_playing) - Made skip button only skip if click started inside - Made mod "Jigsaw" allow clicks during breaks and befo