Hi, I've tested the new version of KeePass, no changes need to the ebuild. Just rename it to keepass-2.21.ebuild.
Thanks, bumped in CVS. + 04 Feb 2013; Michael Palimaka <kensington@gentoo.org> +keepass-2.21.ebuild, + -keepass-2.20-r1.ebuild: + Version bump wrt bug #455322. Remove old.