app-backup/tarsnap is currently version 1.0.30, 1.0.31 is the latest. 1.0.31 successfully builds with the ebuild from version 1.0.30. The release page is https://www.tarsnap.com/download.html.
+*tarsnap-1.0.31 (11 Feb 2012) + + 11 Feb 2012; Rafael G. Martins <rafaelmartins@gentoo.org> + +tarsnap-1.0.31.ebuild: + Version bump. + Thanks