Version 2.2.1 is available upstream. Please consider updating!
It seems that version 2.2.1 is available upstream, while the latest version in the Gentoo tree is 2.2.0_p20130925.
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Available Versions

Version amd64 x86 alpha arm arm64 hppa ia64 ppc ppc64 sparc
2.2.0_p20130925-r1 : 0 ~amd64 ~x86 alpha arm arm64 hppa ia64 ppc ppc64 sparc
2.2.0-r4 : 0 ~amd64 ~x86 alpha arm arm64 hppa ia64 ppc ppc64 sparc

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