New chat features are the main highlight of this build, along with major Taiko mode improvements, a revamped multiplayer lobby and all-round enhancements and bug-fixes. Enjoy and leave feedback in this thread as always 
.
2009-03-09 (b622)
Online Functionality:
(+) Added chat "foreign character" and "offensive language" filtering options. Both disabled by default.
(+) Revamp of channel management. Can add and remove channel tabs, leave channels etc. Channels are saved on exit and rejoined automatically.
(+) Added user panel locking toggle to extended chat.
(+) Can use chat features while submitting.
(*) Fixed /chat and other commands not working correctly for usernames containing spaces.
(*) Moved IME entry to a more appropriate location.
Multiplayer:
(+) Lobby filtering options.
(+) Avatars are now displayed in the lobby, along with more game/player details.
Gameplay:
(+) Taiko online ranking test. Please note that the first week will be experimental, and scores will probably be wiped at the end of the first week (once-off).
(+) HUGE taiko improvements. Authentic scoring, new display elements and more. This is still not finalised and more will be coming in the next week before official taiko rankings.
(+) Added keyboard control for pause menu. Works with Taiko, CtB and arrow key bindings.
(*) Changed '!!','!' cutoffs to match O/X. Slight adjustment to cutoff point (now 50% instead of 62.5%).
(*) Misses are hidden in relax mod.
Interface
(+) Added shortcut keys to special mode selection menu.
(+) PageUp/PageDown or Left/Right arrows now skip 10 songs at a time on song select.
(*) Audio controls are available in lobby, osu!direct, options menus.
(*) Progress pie behaves slightly differently in lead-in time.
Misc
(+) Added maintenance option to force folder permissions.
(+) Added maintenance option to remove unused avatars from local cache.
(*) Improved Vista UAC permission handling.
(*) Added better checking for audio filenames on import.
(*) Redesigned local score database for optimal performance.
Skinning
(+) Added skin Haruhi-ism by Alex0686.
(+) Added skin Street Fighter VI by Atmey.
(+) Added skin Minimal by CheZDa.
(+) Added skin WarioWare by Behonkiss.
(+) Added new colour adjustment to skin "StarBreakAdditive".
(+) Added support for custom skin sample intervals. Under [General] for Taiko CustomComboBurstSounds: 50,100,200,300,400,500,600,700,800
(+) Added skin reload hotkey (works anywhere in-game) Ctrl-Alt-S.
(*) Updated Ouendan2 by devkit4384 to v4.0.
Storyboarding
(*) Bad ending (storyboard) plays more sections are failed than passed (instead of last section failed).
(*) Fixed many SBE bugs.
Bug Fixes
(*) Fixed BSS not creating no-video link if client has video disabled when performing upload.
(*) Fixed Alt-f4 from editor occasionally triggering 'Song Setup' dialog.
(*) Fixed animations disappearing in storyboard when saving in editor (without first seeking through the map).
(*) Fixed avatars not loading in play mode multiplayer matches.
(*) Fixed background colour not being set to current background in colour choosing dialog.
(*) Fixed being able to skip in test build by clicking the pie.
(*) Fixed bug in random number generator (previous replays of CtB hard may not be perfect as a result).
(*) Fixed bug when clicking 'watch replay' after spectating a play causing weird behaviour in rare cases.
(*) Fixed bug where beatmap content would be deleted if swapping from a short to longer mp3 using the File > Open editor dialog.
(*) Fixed bug where design-mode sprites are clickable in timing mode.
(*) Fixed bug where storyboarded maps that also contain video not loading textures properly.
(*) Fixed buggy behaviour when changing BPM in a 2x/0.5x inheriting section.
(*) Fixed channel add dialog styling.
(*) Fixed channel tabs not stacking to second row properly.
(*) Fixed chat cursor not displaying on first load of f8.
(*) Fixed chat spam filter working incorrectly in some cases (L/R being blocked when it shouldn't).
(*) Fixed colour selection in editor.
(*) Fixed countdown not playing in test mode.
(*) Fixed crash on selecting non-existing channels.
(*) Fixed distance snap setting not saving (for real, I promise echo).
(*) Fixed draw depth of taiko hit explosions.
(*) Fixed duplicate difficulty bug!
(*) Fixed editor seeking to previously played point when changing difficulties.
(*) Fixed escape key to unpause not working in editor test mode.
(*) Fixed incorrect date/time showing on results screen after spectating someone.
(*) Fixed key binding spam filter being enabled during replays.
(*) Fixed keyboard control of pause menu acting weird after failing a map.
(*) Fixed keyboard shortcuts working in too many menus.
(*) Fixed misses not appearing.
(*) Fixed mouse cursor disappearing on exiting editor after a beatmap-specific cursor skin is applied.
(*) Fixed music not playing at song select after exiting editor in some cases.
(*) Fixed names with underscores causing issues.
(*) Fixed offset not display in F3 timing screen when set to 0.
(*) Fixed ordering of hit explosion on sliders.
(*) Fixed osu!direct not showing approved maps on "Ranked/Approved" option.
(*) Fixed osu!direct panel alignment (no longer overlapped by chat).
(*) Fixed panel status not updating from testing to modding when using F1/F2 to exit test mode.
(*) Fixed permission settings on some PC setups.
(*) Fixed problem with taiko background dimming.
(*) Fixed problems with audio sample rate not resetting.
(*) Fixed rare slider problems (3/4 sliders in 4/4 timed songs).
(*) Fixed reloading map in editor causing seek to start of song.
(*) Fixed removing friends in-game causing weird issues on forums.
(*) Fixed replay buttons clickable even when the osu! window isn't focused.
(*) Fixed sliders issues.
(*) Fixed spinners being spinnable while failing animation is in progress.s
(*) Fixed tab depth ordering issues.
(*) Fixed taiko denden scoring/combo authenticity.
(*) Fixed taiko drumrolls increasing combo.
(*) Fixed taiko explode sprites being behind the hit target.
(*) Fixed taiko large hits not showing an explosion when both keys are hit simultaneously.
(*) Fixed taiko replays not saving to server.
(*) Fixed taiko storyboard status not reflecting performance accurately.
(*) Fixed threadlock condition with user joins.
(*) Fixed video events in osb file writing to osu file.
(*) Made avatar loading more robust.
(*) More slider logic fixes. Hopefully unflawed now.
(*) Multiplayer fixes.
(*) Online Users button is now always visible.
(*) Performance increase for skin selection screen.
(*) Popup messages move back down to bottom of screen when chat is closed.
(*) Skin option "SpinnerFadePlayfield" is once again obeyed.
(*) Slight optimisation to repeated sprite loading.
(*) Spectating is halted when watching an autoplay/replay.
.2009-03-09 (b622)
Online Functionality:
(+) Added chat "foreign character" and "offensive language" filtering options. Both disabled by default.
(+) Revamp of channel management. Can add and remove channel tabs, leave channels etc. Channels are saved on exit and rejoined automatically.
(+) Added user panel locking toggle to extended chat.
(+) Can use chat features while submitting.
(*) Fixed /chat and other commands not working correctly for usernames containing spaces.
(*) Moved IME entry to a more appropriate location.
Multiplayer:
(+) Lobby filtering options.
(+) Avatars are now displayed in the lobby, along with more game/player details.
Gameplay:
(+) Taiko online ranking test. Please note that the first week will be experimental, and scores will probably be wiped at the end of the first week (once-off).
(+) HUGE taiko improvements. Authentic scoring, new display elements and more. This is still not finalised and more will be coming in the next week before official taiko rankings.
(+) Added keyboard control for pause menu. Works with Taiko, CtB and arrow key bindings.
(*) Changed '!!','!' cutoffs to match O/X. Slight adjustment to cutoff point (now 50% instead of 62.5%).
(*) Misses are hidden in relax mod.
Interface
(+) Added shortcut keys to special mode selection menu.
(+) PageUp/PageDown or Left/Right arrows now skip 10 songs at a time on song select.
(*) Audio controls are available in lobby, osu!direct, options menus.
(*) Progress pie behaves slightly differently in lead-in time.
Misc
(+) Added maintenance option to force folder permissions.
(+) Added maintenance option to remove unused avatars from local cache.
(*) Improved Vista UAC permission handling.
(*) Added better checking for audio filenames on import.
(*) Redesigned local score database for optimal performance.
Skinning
(+) Added skin Haruhi-ism by Alex0686.
(+) Added skin Street Fighter VI by Atmey.
(+) Added skin Minimal by CheZDa.
(+) Added skin WarioWare by Behonkiss.
(+) Added new colour adjustment to skin "StarBreakAdditive".
(+) Added support for custom skin sample intervals. Under [General] for Taiko CustomComboBurstSounds: 50,100,200,300,400,500,600,700,800
(+) Added skin reload hotkey (works anywhere in-game) Ctrl-Alt-S.
(*) Updated Ouendan2 by devkit4384 to v4.0.
Storyboarding
(*) Bad ending (storyboard) plays more sections are failed than passed (instead of last section failed).
(*) Fixed many SBE bugs.
Bug Fixes
(*) Fixed BSS not creating no-video link if client has video disabled when performing upload.
(*) Fixed Alt-f4 from editor occasionally triggering 'Song Setup' dialog.
(*) Fixed animations disappearing in storyboard when saving in editor (without first seeking through the map).
(*) Fixed avatars not loading in play mode multiplayer matches.
(*) Fixed background colour not being set to current background in colour choosing dialog.
(*) Fixed being able to skip in test build by clicking the pie.
(*) Fixed bug in random number generator (previous replays of CtB hard may not be perfect as a result).
(*) Fixed bug when clicking 'watch replay' after spectating a play causing weird behaviour in rare cases.
(*) Fixed bug where beatmap content would be deleted if swapping from a short to longer mp3 using the File > Open editor dialog.
(*) Fixed bug where design-mode sprites are clickable in timing mode.
(*) Fixed bug where storyboarded maps that also contain video not loading textures properly.
(*) Fixed buggy behaviour when changing BPM in a 2x/0.5x inheriting section.
(*) Fixed channel add dialog styling.
(*) Fixed channel tabs not stacking to second row properly.
(*) Fixed chat cursor not displaying on first load of f8.
(*) Fixed chat spam filter working incorrectly in some cases (L/R being blocked when it shouldn't).
(*) Fixed colour selection in editor.
(*) Fixed countdown not playing in test mode.
(*) Fixed crash on selecting non-existing channels.
(*) Fixed distance snap setting not saving (for real, I promise echo).
(*) Fixed draw depth of taiko hit explosions.
(*) Fixed duplicate difficulty bug!
(*) Fixed editor seeking to previously played point when changing difficulties.
(*) Fixed escape key to unpause not working in editor test mode.
(*) Fixed incorrect date/time showing on results screen after spectating someone.
(*) Fixed key binding spam filter being enabled during replays.
(*) Fixed keyboard control of pause menu acting weird after failing a map.
(*) Fixed keyboard shortcuts working in too many menus.
(*) Fixed misses not appearing.
(*) Fixed mouse cursor disappearing on exiting editor after a beatmap-specific cursor skin is applied.
(*) Fixed music not playing at song select after exiting editor in some cases.
(*) Fixed names with underscores causing issues.
(*) Fixed offset not display in F3 timing screen when set to 0.
(*) Fixed ordering of hit explosion on sliders.
(*) Fixed osu!direct not showing approved maps on "Ranked/Approved" option.
(*) Fixed osu!direct panel alignment (no longer overlapped by chat).
(*) Fixed panel status not updating from testing to modding when using F1/F2 to exit test mode.
(*) Fixed permission settings on some PC setups.
(*) Fixed problem with taiko background dimming.
(*) Fixed problems with audio sample rate not resetting.
(*) Fixed rare slider problems (3/4 sliders in 4/4 timed songs).
(*) Fixed reloading map in editor causing seek to start of song.
(*) Fixed removing friends in-game causing weird issues on forums.
(*) Fixed replay buttons clickable even when the osu! window isn't focused.
(*) Fixed sliders issues.
(*) Fixed spinners being spinnable while failing animation is in progress.s
(*) Fixed tab depth ordering issues.
(*) Fixed taiko denden scoring/combo authenticity.
(*) Fixed taiko drumrolls increasing combo.
(*) Fixed taiko explode sprites being behind the hit target.
(*) Fixed taiko large hits not showing an explosion when both keys are hit simultaneously.
(*) Fixed taiko replays not saving to server.
(*) Fixed taiko storyboard status not reflecting performance accurately.
(*) Fixed threadlock condition with user joins.
(*) Fixed video events in osb file writing to osu file.
(*) Made avatar loading more robust.
(*) More slider logic fixes. Hopefully unflawed now.
(*) Multiplayer fixes.
(*) Online Users button is now always visible.
(*) Performance increase for skin selection screen.
(*) Popup messages move back down to bottom of screen when chat is closed.
(*) Skin option "SpinnerFadePlayfield" is once again obeyed.
(*) Slight optimisation to repeated sprite loading.
(*) Spectating is halted when watching an autoplay/replay.
Like the case of spinning after failing. And still being able to hit some stuff (and even get misses) during failing.
