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+ ---
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+ tags:
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+ - history
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+ ---
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+ # Changelog
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+ <!-- for the purpose of learning the history through the Wayback Machine (https://web.archive.org/), the changelog is available at different URLs:
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+ - http://osu.ppy.sh/?p=changelog
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+ - http://osu.ppy.sh/p/changelog
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+ --->
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+ The **[changelog](https://osu.ppy.sh/home/changelog)** is a page where the [osu! development team](/wiki/People/Developers) details their day-by-day improvements, additions, and bug fixes to the game. All changes from prior releases are recorded here for archiving purposes.
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+ The changelogs for the website and [osu!(lazer)](/wiki/Client/Release_stream/Lazer) are generated automatically based on GitHub releases of those projects, while the rest are maintained manually.
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+ ## History
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+
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+ <!-- TODO(TicClick): wrap the images in infoboxes -->
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+ ![](img/changelog-web-2007.png "The web changelog in 2007")
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+ The changelog has been started by peppy on September 11, 2007 in a dedicated forum thread titled "[Official Development Changelog](https://osu.ppy.sh/community/forums/topics/15)", where he would list notable changes and bug fixes, and sometimes share insights on upcoming plans.
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+ ![](img/changelog-osume-2013.png "Changelog in the osu! updater (2013)")
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+ In October, 2007, a web version of changelog [became available](https://osu.ppy.sh/community/forums/posts/2499) both through the website and the osu! updater.
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+ On October 25, 2009, the changelog [became available via an RSS feed](https://osu.ppy.sh/community/forums/topics/19137).
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+ ![](img/build-propagation-graph-2015.png "Distribution of osu! build versions (2015)")
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+ On October 28, 2015, a graph with osu! versions distribution across the playerbase [was added to the changelog](https://web.archive.org/web/20151103161516/http://osu.ppy.sh:80/p/changelog), making the statistics open to the general public. At the same time, it became possible to filter the changelog by update stream.
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+ ## See also
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+ In addition to the changes listed on the website, [peppy's blog](https://blog.ppy.sh/) may also be considered a form of changelog. Over the years, it has accumulated a vast collection of posts centred around osu!, its development, and ecosystem, including upcoming plans and developers' meeting notes.