Let's get you started

b20151228.3

Released right after Christmas

b20151026.3fallback

Adds the ability to disable the startup splash screen with "-nosplash"

b20150901

This version adds a new design for the tournament client

b20150826.3

This version now displays the qualified warning message

b20150812.11

Added support for osu://spectate/<user> links

b20150514.8cuttingedge

Added "My Love" and "Lost" to the bundled beatmaps

b20150416.1cuttingedge

Allows for adding/removing entire sets in collections

b20150331.2

Buy the coins!

b20150331cuttingedge

Buy the coins! (Triangles Edition)

b20150205cuttingedge

An experimental version from 2015 that disables the DirectX renderer and switches to .NET 4

b20150203.7

Added the new volume controls

b20150101cuttingedge

First release of 2015

b20141222.6cuttingedge

A christmas-themed version from 2014

b20141206cuttingedge

A 2014 triangles build, with a little easter egg

b20141109.14cuttingedge

A version from 2014 with customizable triangles! (Try to drag an image into the game)

b20141106.14

Yet another version from 2014

b20140909.11cuttingedge

A test build from late 2014, with a very nice UI

b20140909.7cuttingedge

The same version as b20140909.11cuttingedge, without the UI update

b20140616.test

One of the earliest versions to support decimal AR, OD, CS values

b20140323.3

The first version with the new settings menu

b20140127

The version before the new settings menu was added

b20131129.1

Contains a lot of improvements for tournaments

b20131113.2

Yet another version from 2013

b20131024.1

Added skin customisation of the menu glow color

b20131009

This client adds localisations for Latvian and Slovene

b20130915.4

Improved the song importing behavior on Linux/MacOS (wine)

b20130823.3

Changed the underlying protocol for bancho from tcp to http

b20130802.1

Removed the restriction for background dimming and other visual changes

b20130716

This client added some more features to collections

b20130626

Introduced full localisation of multiplayer

b20130606.1

A build from 2013 with the new UI overhaul update

b20130603

A mid‑2013 build that removes the @osustatus in-game browser

b20130513

This client introduces difficulty names in osu! direct

b20130329

Added user avatars to song select leaderboards

b20130319

Released one day after the osu! UI revamp

b20130303

This is the last build before 2013's UI overhaul update.

b20121223

Made improvements to handling a large number of users in the bancho protocol

b20121203

Added internal improvements to localisations

b20121119

Added the ability to filter beatmaps by game mode

b20121115

Allows you to set a custom beatmap song path

b20121023

Made lots of improvements to osu! mania after its initial release

b20121003shine.test

The first version to add osu!mania

b20120916

Adds skinning support for multiplayer & osu! direct backgrounds

b20120812

Added the "Perfect" mod

b20120529

Fixed RX/AP being selectable with NF

b20120522

Now warns you when trying to DM an offline user

b1844.test

This build was used to test the "osz2" file format

b1821

b1818

b1815

b1814

b1807

Released on april fools, forcing you to play with nightcore

b1704

b1700

b1652

This is the first build to have split AR and OD

b1596

b1553

b1218

b1122

b1077a

This is the first version of osu! with proper widescreen support

b904

A build from 2009 that is used in the oldsu server

b833

This version has a very early and buggy implementation of widescreen

b753c

A build from 2009 that added local rankings

b699

nice?

b639

The first version to introduce the 2009-2011 menu, requested by s3tup

b595b

b558

b534.test

This version was used to test the MSN integration

b504

The first version of osu! with catch the beat support

b497

This version of osu! adds a new song select style and the first version of osu!direct

b476

A build from 2008 with very early support for Catch the Beat

b452

A very early OpenGL build, that also features work-in-progress sliders

b420

A build from 2008, the first public build featuring the Auto and SpunOut mods

b394a

A build from 2008 that oldsu used in the past

b370

A shady version of osu! found by tokaku on shopee. Finally decompressed and patched by Oreeeee!

b337

The earliest version with multiplayer support that was archived