On June 3, 2009, version 2.1 was released which reintroduced a few of the 1.4 features which had been missing from the initial 2.0 release, and introduced some features such as native ReplayGain support for the first time.
2009年6月3日，2.1版发布，重新引入了1.4版的一些功能，这些功能在最初的2.0版本中缺少，并且引入了一些1功能如首次支持本机的回放增益。