Apple has rolled out its first update to iTunes 11 (version 11.0.1), restoring the duplicate entry tool, and fixing various issues in need of fixing.

The tweaked version of iTunes went out as a free update to users. In addition to the built-in tool to find duplicate songs, the update also fixes an issue that kept purchased items from appearing in the library when Apple's paid iTunes Match subscription was enabled. Moreover, iTunes 11.0.1 also fixes the issue that made the AirPlay button disappear.

"This update to the new iTunes addresses an issue where new purchases in iCloud may not appear in your library if iTunes Match is turned on, makes iTunes more responsive when searching a large library, fixes a problem where the AirPlay button may not appear as expected, and adds the ability to display duplicate items within your library," reads the change log. "This update also includes other important stability and performance improvements."

Apple first showed off its new iTunes 11 software at a press event back in September, and rolled it out a couple of weeks back, at the very end of November. One of the new app's top features is a visual redesign that borrows some cues from Apple's iOS software, focusing on large album covers that can expand to display songs - both songs in the user's library and tracks from Apple's iTunes Music Store.

The revamped iTunes 11 brought a slew of other features, including deeper integration with Apple's iCloud service, redesigned storefronts, a new "Up Next" feature, as well as a new mini player that enables users to search for songs, albums, and artists, without having to go back to the full view.

Roughly two weeks later, iTunes users have the promised update that aims to fix most of the issues with the software. The update weighs in at 220MB and is available from the iTunes download page or via System Update now.

What the update doesn't fix, however, is the ability to convert album art to PNG files. Apple likely doesn't see it as an issue, but many users would prefer being able to decide what picture format to choose. Maybe with a future update?