10.6 was released a week ago and a bug fix release will also appear shortly. The release notes mention no dependency change, but the patch doesn't apply cleanly anymore.
+*freecol-0.10.7 (05 Feb 2013) + + 05 Feb 2013; Julian Ospald <hasufell@gentoo.org> +freecol-0.10.7.ebuild, + +files/freecol-0.10.7-gentoo.patch: + version bump wrt #450296