>>> Installing (1 of 1) x11-misc/zim-0.67::gentoo * QA Notice: mime-info files were found installed but mime-info * cache has not been updated: * /usr/share/mime/packages/zim.xml * Please make sure to call xdg_mimeinfo_database_update() * in pkg_postinst() and pkg_postrm() phases of appropriate pkgs.
Appears to have been fixed in 0.68.